MacOS Dev Setup: Python, AI
Adrachin:
I want to setup a development environment on a macbook with OS Sonoma. Recommanda what is needed. Main use is Web development with integrated AI functionality and Phyton as the main programming language.
LiquidGPT:
Setting up a development environment on a MacBook with OS Sonoma for web development integrated with AI functionalities using Python involves several key components. Here’s a recommended setup:
1. Terminal and Shell
- iTerm2: A replacement for Terminal and the successor to iTerm. It provides features like split panes, search, and customization.
- Zsh (Z Shell): It comes pre-installed on macOS and can be enhanced with Oh My Zsh, a framework for managing Zsh configuration.
2. Package Manager
- Homebrew: This is essential for managing software packages on macOS. It simplifies the installation of software like Python, databases, and other utilities.
3. Python Environment
- Python Installation: While macOS comes with Python installed, it’s a good practice to install a version that you can manage. Install Python using Homebrew.
- Pyenv: Useful for managing multiple Python versions. It’s especially helpful if you need to switch between different projects that require different Python versions.
- Virtualenv and virtualenvwrapper: These tools help manage separate package installations for different projects, ensuring that dependencies are kept isolated.
4. Integrated Development Environment (IDE) or Code Editor
- Visual Studio Code (VS Code): Highly recommended for Python and web development. It offers robust support through extensions for Python, HTML, CSS, JavaScript, and more.
- Extensions for VS Code:
- Python extension: For Python support (linting, IntelliSense, code navigation, etc.).
- Pylance: For improved Python language support.
- ESLint: For JavaScript linting.
- Live Server: For real-time reloading of web content.
- Docker: To manage Docker containers right from the IDE.
5. Version Control
- Git: Essential for version control. macOS comes with Git, but you can also install the latest version via Homebrew.
- GitHub Desktop or Sourcetree: GUI clients for managing Git repositories.
6. Database Management
- DBeaver or TablePlus: GUI tools for database management that support various DBMS like MySQL, PostgreSQL, MongoDB, etc.
- PostgreSQL: A robust, open-source relational database. Install it via Homebrew.
7. Docker
- Docker Desktop for Mac: Useful for containerization of your applications and environments. It simplifies the deployment of services and their dependencies.
8. AI and Machine Learning Libraries
- TensorFlow or PyTorch: Install these libraries as per your project’s AI/ML needs. Use
pipfor installation within your Python virtual environments. - Scikit-learn, NumPy, pandas: Essential libraries for data manipulation and machine learning.
9. Web Development Frameworks
- Django or Flask: For Python-based web applications. Django is more full-featured, while Flask provides simplicity and flexibility.
- Node.js and npm: Even if your main language is Python, having Node.js can be beneficial for managing front-end tooling.
10. Additional Tools
- Postman: For API development and testing.
- Robo 3T or MongoDB Compass: If using MongoDB.
This setup ensures that you have a robust, flexible environment tailored for modern web development with Python, incorporating both front-end and back-end technologies along with AI functionalities.
Adrachin:
Fine. Is there a way to keep the development space separate from the rest of the system so it can be wiped out if needed?
LiquidGPT:
Absolutely, there are several strategies to keep your development environment isolated from the rest of your system, making it easy to manage or wipe out without affecting other parts of your system. Here are a few approaches:
1. Virtual Environments for Python
Using Python virtual environments is a crucial practice for managing project-specific dependencies. This prevents libraries for one project from interfering with another and keeps your global site-packages directory clean.
- virtualenv is a popular tool that allows you to create isolated environments.
- conda can also be used if you are working with data science and AI tools, as it handles both Python packages and non-Python packages effectively.
2. Docker Containers
Docker provides a powerful way to package your application with all of its dependencies into a single container, which can be run on any system that has Docker installed. This means your development environment can be completely isolated and replicated on other machines without any compatibility issues.
- Each part of your project (frontend, backend, database, etc.) can be placed in separate containers, and Docker Compose can be used to manage multi-container setups.
3. Virtual Machines
Using a Virtual Machine (VM) is a more heavy-weight solution but offers complete isolation by simulating a separate computer within your system. Tools like VirtualBox or VMware can be used to run a full-fledged guest operating system on your machine, in which you can setup everything as if it were on a separate physical machine.
- VMs are particularly useful if you need to run different operating systems or configurations that are significantly different from your main system.
4. Dedicated Partition or External Drive
Another approach is to use a separate partition on your hard drive or an external drive exclusively for development. This setup allows you to manage your environment independently:
- You can even install a completely separate OS on this partition or external drive, making it easy to wipe out or reconfigure without affecting your main system.
5. Using macOS Spaces for Organizational Isolation
While this doesn’t provide the same level of isolation as the above methods, using macOS Spaces to organize different applications and windows can help manage clutter and keep development separate from other activities.
Conclusion
For most web development needs integrated with AI functionalities using Python, combining Docker for service isolation with Python virtual environments for dependency management offers a good balance of isolation, ease of use, and system performance. Virtual machines can be used for more extensive isolation needs, while physical separation (using different partitions or drives) can be the ultimate form of isolation if required.
Adrachin:
Lets go for 2. Docker Containers. Can conda be part of it?
LiquidGPT:
Yes, Docker containers can certainly include Conda as part of their setup. This can be very useful if you need to manage complex dependencies that include both Python packages and non-Python software, which is common in data science and AI projects.
Here’s how you can integrate Conda into a Docker container for a Python-based web development project with AI functionalities:
1. Create a Dockerfile
You would start by creating a Dockerfile, which is a text document that contains all the commands a user could call on the command line to assemble an image. Here’s an example of how you could set up a Dockerfile using a base image with Miniconda installed:
# Use an official Miniconda image as a parent image
FROM continuumio/miniconda3
# Set the working directory in the container
WORKDIR /app
# Copy the current directory contents into the container at /app
COPY . /app
# Install any needed packages specified in requirements.txt
COPY requirements.txt .
RUN conda create --name myenv python=3.8
RUN echo "source activate myenv" > ~/.bashrc
ENV PATH /opt/conda/envs/myenv/bin:$PATH
RUN pip install --no-cache-dir -r requirements.txt
# Make port 80 available to the world outside this container
EXPOSE 80
# Define environment variable
ENV NAME World
# Run app.py when the container launches
CMD ["python", "app.py"]
2. Managing Environments
This Dockerfile does the following:
- Base Image: Starts with a Miniconda3 base image.
- Working Directory: Sets the working directory to
/app. - Copying Files: Copies the current directory and
requirements.txtinto the container. - Creating Conda Environment: Creates a new Conda environment named
myenvwith Python 3.8. - Activating Environment: Adjusts
.bashrcto ensure that the correct Conda environment is activated whenever a shell is started. - Installing Dependencies: Uses
pipto install Python packages defined inrequirements.txt. Note that you might also useconda installif some packages are better managed via Conda. - Exposing Ports and Setting Environment Variables: Prepares the container to interact with external traffic and systems.
- Running the Application: Specifies the command to run the application.
3. Build and Run the Container
To build the Docker image from this Dockerfile, you would use the following command in the terminal:
docker build -t my-python-app .
To run the image, turning it into a container, you would use:
docker run -p 4000:80 my-python-app
This setup directs traffic from your host machine’s port 4000 to the container’s port 80.
4. Benefits and Considerations
- Reproducibility: Using Docker ensures that your environment is consistent across all development and deployment stages.
- Isolation: Docker provides excellent isolation which prevents conflicts between different projects or between development and production setups.
- Conda Integration: Including Conda allows you to manage complex dependencies efficiently, especially useful for projects involving data science and machine learning.
Using Docker with Conda provides a powerful and flexible way to manage your development environments, especially when working with complex and varied dependencies in web development and AI projects.
Adrachin:
Ok, let’s continue with this. First:
- Terminal and Shell
iTerm2: A replacement for Terminal and the successor to iTerm. It provides features like split panes, search, and customization.
Tell me how to install it
LiquidGPT:
To install iTerm2 on your MacBook with OS Sonoma, you can follow these simple steps:
1. Download iTerm2
- Visit the iTerm2 website: Open your web browser and go to the iTerm2 official website at iTerm2.com.
- Download the app: Click on the “Download” button. iTerm2 provides a disk image file (
.dmg) for macOS.
2. Install iTerm2
- Open the downloaded
.dmgfile: This will mount a new volume that often opens automatically and shows you the iTerm2 application. - Drag the iTerm2 icon to the Applications folder: This is a common step for installing applications on macOS and makes the application available in your Applications folder.
3. Launch iTerm2
- Open iTerm2: You can find iTerm2 by opening your Applications folder, or you can use Spotlight by pressing
Cmd + Space, typing “iTerm”, and pressing Enter. - Initial Setup: When you run iTerm2 for the first time, it might ask you to select some preferences or confirm certain default settings. You can customize these settings according to your preference.
4. Optional Customizations
- Change Preferences: iTerm2 is highly customizable. You can access the preferences by clicking on
iTerm2in the menu bar, then selectingPreferences. Here, you can customize the appearance, profiles, keys, and more. - Install Oh My Zsh:
- iTerm2 works exceptionally well with Zsh (Z Shell), and you might consider enhancing your shell experience with Oh My Zsh, a framework for managing Zsh configuration.
- To install Oh My Zsh, you can run the following command in iTerm2:
sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" - This script installs Oh My Zsh and sets Zsh as your default shell, offering themes, plugins, and a robust community-driven framework for managing your Zsh configuration.
5. Verify Installation
- After installation and customization, verify that iTerm2 is working as expected by running simple commands, such as
ls,pwd, orecho "Hello World".
With iTerm2 installed, you can take advantage of its advanced features like split panes, search, and customization to enhance your terminal experience on macOS, making it a powerful tool for developers.
Adrachin:
Nice. I want bigger letters but could not find a setting for that
LiquidGPT:
Increasing the font size in iTerm2 to make the text more readable is straightforward. Here’s how you can adjust the font size settings:
Steps to Increase Font Size in iTerm2
-
Open iTerm2 Preferences:
- You can access the preferences in iTerm2 by either clicking on
iTerm2in the menu bar at the top of your screen and selectingPreferences, or you can use the shortcutCmd + ,(comma).
- You can access the preferences in iTerm2 by either clicking on
-
Navigate to Profiles:
- In the Preferences window, click on the
Profilestab. This tab allows you to customize various aspects of the iTerm2 experience for each profile you have (by default, there’s usually just one profile).
- In the Preferences window, click on the
-
Text Settings:
- Inside the
Profilestab, look for theTextsection in the side menu. Click on it to open the text settings.
- Inside the
-
Change the Font:
- In the Text settings, you’ll see a
Fontsection with a button labeledChange Font. Click this button. - A new window will pop up displaying different fonts along with their styles and sizes. Here, you can choose your preferred font, style, and increase the size to your liking.
- After selecting the font and size, click
Selectto apply the changes.
- In the Text settings, you’ll see a
-
Adjusting for All Profiles:
- If you have multiple profiles and want to increase the font size across all of them, you’ll need to repeat this process for each profile or set the desired profile as the default for new terminals.
-
Quick Size Adjustment:
- For temporary adjustments, iTerm2 supports quick resizing of text:
- To increase the font size, press
Cmd + Shift + +(plus). - To decrease the font size, press
Cmd + Shift + -(minus). - To reset to the default font size, press
Cmd + 0.
- To increase the font size, press
- For temporary adjustments, iTerm2 supports quick resizing of text:
-
Save Your Settings:
- After adjusting the font settings, simply close the Preferences window. iTerm2 automatically saves your changes.
These steps should help you customize the font size in iTerm2 to better suit your visibility preferences, enhancing your overall user experience in the terminal.
Adrachin:
Lets go to this:
Homebrew: This is essential for managing software packages on macOS. It simplifies the installation of software like Python, databases, and other utilities.
How to install it?
LiquidGPT:
Installing Homebrew on your MacBook with OS Sonoma is a straightforward process that enables you to manage software packages easily. Here’s a step-by-step guide on how to install Homebrew:
Step 1: Open iTerm2
First, open iTerm2, which you’ve already installed. This terminal will be used to enter the commands for installing Homebrew.
Step 2: Install Xcode Command Line Tools
Before installing Homebrew, you need to ensure that Xcode Command Line Tools are installed, as Homebrew depends on these tools.
- Check if you already have Xcode Command Line Tools installed by running:
xcode-select --install - If not installed, you will be prompted to install them. Follow the on-screen instructions to complete the installation. If they are already installed, you’ll see a message stating that software is not available and can skip this step.
Step 3: Install Homebrew
Once the Xcode Command Line Tools are installed, you can install Homebrew itself by running the following command in iTerm2:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
This command downloads and runs the Homebrew installation script from the official Homebrew GitHub repository.
Step 4: Follow the On-Screen Instructions
- During the installation, you may be prompted to enter your macOS user password. This password is necessary because the installation script makes changes in directories that require administrative access.
- The script will inform you what it is doing and will ask for confirmation if necessary.
Step 5: Add Homebrew to Your Path
After installation, you may need to add the Homebrew directory to your shell’s PATH if it’s not done automatically. Homebrew typically provides instructions on how to do this at the end of the installation output. Here’s the usual advice:
For bash users:
echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> /Users/$(whoami)/.bash_profile
eval "$(/opt/homebrew/bin/brew shellenv)"
For zsh users:
echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> /Users/$(whoami)/.zshrc
eval "$(/opt/homebrew/bin/brew shellenv)"
Step 6: Verify Installation
To verify that Homebrew has been installed correctly, run:
brew doctor
If everything is set up correctly, you should see a message saying, “Your system is ready to brew.” This command checks for potential issues and confirms that Homebrew is ready to use.
Step 7: Updating Homebrew
It’s a good practice to ensure Homebrew is up to date before you start installing packages:
brew update
This setup will enable you to manage software installations on your Mac efficiently, making it easier to install and update tools like Python, databases, and other development utilities.
Adrachin:
iTerm2 is bash?
LiquidGPT:
iTerm2 itself is a terminal emulator for macOS, which means it can run any shell that you configure it to use. By default, macOS has used Bash as the default shell for many years, but with recent versions (starting from macOS Catalina, released in October 2019), the default shell has been changed to Zsh (Z Shell).
When you open iTerm2, it will use whichever shell is set as the default for your system. Since you’re using a MacBook with OS Sonoma, which is a newer release, it’s likely configured to use Zsh as the default shell.
Checking Your Default Shell
You can easily check which shell you are currently using in iTerm2 by running:
echo $SHELL
Changing the Default Shell
If you prefer to use Bash instead of Zsh or any other shell, you can change your default shell by using the chsh (change shell) command:
chsh -s /bin/bash
This command changes your login shell to Bash. You’ll need to log out and log back in for this change to take effect.
Similarly, to switch back to Zsh or to another installed shell, you would use:
chsh -s /bin/zsh
Configuring iTerm2 to Use a Specific Shell
You can also configure iTerm2 to launch a specific shell regardless of the system default:
- Open iTerm2.
- Go to iTerm2 > Preferences or press
Cmd + ,. - Navigate to the “Profiles” tab.
- Select your profile on the left (or create a new one if you want multiple configurations).
- Under the “General” tab within a profile, find the “Command” section.
- Select “Command” instead of “Login shell” and specify the shell executable you want to use (e.g.,
/bin/bashfor Bash or/bin/zshfor Zsh).
This setting allows iTerm2 to start with the specified shell for that profile whenever it’s opened.
Adrachin:
Its ZSH. Can I switch to bash if needed?
LiquidGPT:
Yes, you can switch to Bash from Zsh in iTerm2 if you prefer to use Bash or need it for specific tasks. Here’s how you can switch between shells temporarily or change the default shell to Bash:
Switching to Bash Temporarily
If you just want to switch to Bash for a single session without changing your default shell, you can simply type the following command in your iTerm2 terminal:
bash
This command will start a Bash session in your current terminal window. To exit Bash and return to Zsh, you can type exit or press Ctrl+D.
Changing the Default Shell to Bash
If you decide that you want to use Bash as your default shell instead of Zsh, you can change it permanently using the chsh (change shell) command:
-
Open iTerm2.
-
Check Available Shells:
First, ensure Bash is installed by listing available shells:cat /etc/shellsThis command shows all the shells installed on your system. Look for
/bin/bashin the list. -
Change the Default Shell:
Run the following command to change your default shell to Bash:chsh -s /bin/bashYou will be prompted to enter your password. After changing your shell, you will need to log out and log back in for this change to take effect across all your terminal sessions.
Configuring iTerm2 to Always Use Bash
Alternatively, you can configure iTerm2 to always use Bash for specific profiles without changing the system-wide default:
-
Open iTerm2 Preferences:
Open iTerm2, go to the menu bar, select iTerm2 > Preferences, or pressCmd + ,. -
Navigate to Profiles:
Click on the “Profiles” tab. -
Select Your Profile:
Select the profile you want to modify or create a new one if you prefer to have multiple configurations. -
Set Command to Use Bash:
Under the “General” tab within the profile settings, find the “Command” section, select “Command” instead of “Login shell”, and type/bin/bashin the input field. -
Close Preferences:
Close the Preferences window. iTerm2 will now use Bash every time you open a new terminal window with that profile.
These methods allow you to either temporarily or permanently switch to Bash according to your needs or preferences.
Adrachin:
after the common brew doctor zsh is stuck. How can I interrupt it?
LiquidGPT:
If a command like brew doctor is taking too long or appears stuck in your iTerm2 terminal using Zsh, you can interrupt it using one of the following methods:
1. Keyboard Interrupt
The most common way to interrupt a running process in the terminal is by sending an interrupt signal using:
-
Control + C
Pressing
Ctrl + Csends an interrupt signal (SIGINT) to the current process running in the foreground in the terminal. This tells the process to terminate immediately, which is effective for stopping most commands that are currently executing.
2. Closing the Terminal Window
If Ctrl + C doesn’t work for some reason (which can happen if the process is in a specific wait state or handling signals in a non-standard way), you can try:
-
Closing the terminal window or tab
This will terminate all running processes in that terminal session, including
brew doctor. You can close the window by clicking the close button or using theCmd + Wshortcut if you’re in iTerm2.
3. Kill the Process from Another Terminal
If the above methods don’t work and you need to forcefully terminate the process, you can:
- Open a new terminal window or tab.
- Find the process ID (PID) of the stuck command by using:
ps aux | grep brewThis command will list all processes related to Homebrew. Look for the
brew doctorcommand in the output and note the PID (the number in the second column). - Kill the process using:
kill -9 PIDReplace
PIDwith the actual process ID number you found. The-9option sends a SIGKILL signal, which forcefully terminates the process.
4. Rebooting the Machine
As a last resort, if none of the above methods work and your system remains unresponsive, you can perform a system reboot. This will certainly stop the process but should only be done if absolutely necessary since it will affect all running applications.
These methods should help you regain control when a command in the terminal becomes unresponsive. Normally, Ctrl + C should suffice for interrupting commands like brew doctor. If it doesn’t work, moving through the other methods in order can help resolve the issue without resorting to a system reboot.
Adrachin:
Brew doctor output:
Warning: Unbrewed dylibs were found in /usr/local/lib.
If you didn’t put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.
Unexpected dylibs:
/usr/local/lib/libcpsrt.dylib
Should I care about that?
LiquidGPT:
The warning you’re seeing from brew doctor about “unbrewed dylibs” in /usr/local/lib is not uncommon, especially on systems where software has been installed outside of Homebrew. Here’s what this warning means and how you should handle it:
Understanding the Warning
-
Unbrewed dylibs: These are dynamic libraries that exist in the directories that Homebrew checks, but they weren’t installed by Homebrew. This can happen if you’ve installed software directly from source, used another package manager, or manually copied files into
/usr/local/lib. -
Potential issues: The presence of these files can potentially cause conflicts or unexpected behavior when Homebrew builds and installs packages. This is because Homebrew might link against these uncontrolled libraries instead of its own managed versions, leading to compatibility issues or crashes.
What to Do
-
Identify the Source:
- Try to recall if you installed
libcpsrt.dylibdeliberately for a specific project or task. Check if this library is being used by any applications you currently need.
- Try to recall if you installed
-
Backup the File:
- Before deleting anything, it’s a good idea to back up the file. You can move it to another location outside of
/usr/local/lib:mv /usr/local/lib/libcpsrt.dylib ~/Documents/ - This way, if something stops working, you can restore the file.
- Before deleting anything, it’s a good idea to back up the file. You can move it to another location outside of
-
Test for Dependencies:
- After moving the file, check if any applications that you use are affected. Sometimes, libraries in
/usr/local/libare dependencies for other software not managed by Homebrew.
- After moving the file, check if any applications that you use are affected. Sometimes, libraries in
-
Delete If Unnecessary:
- If you determine that the dylib is not needed, or if you are unsure but want to ensure Homebrew operates without potential conflicts, you can delete the file:
rm ~/Documents/libcpsrt.dylib - Monitor your system for any issues after removing it. If something breaks, restore the file from your backup.
- If you determine that the dylib is not needed, or if you are unsure but want to ensure Homebrew operates without potential conflicts, you can delete the file:
-
Re-run
brew doctor:- After handling the unexpected dylib, run
brew doctoragain to see if the issue is resolved and check for any other warnings:brew doctor
- After handling the unexpected dylib, run
Caution
Be cautious with deleting system files or libraries. If a library is critical for other applications, removing it could cause them to malfunction. That’s why identifying the source and testing after moving the file are important steps before deciding to delete anything permanently.
If you are not sure about the impact of removing libcpsrt.dylib, you might want to research this library specifically or consult with a colleague or a community related to the software you use. This can help ensure that you don’t inadvertently remove something essential for your workflows.
Adrachin:
what is the full path for usr/local/lib?
LiquidGPT:
In macOS, the full path to the /usr/local/lib directory as you would typically reference it from the command line or any scripts is:
/usr/local/lib
This directory is used primarily to store libraries and other shared resources that are accessible system-wide. Software installed manually or through managers like Homebrew often places libraries here.
Accessing /usr/local/lib
-
From the Terminal: You can navigate to this directory by entering:
cd /usr/local/libHere, you can use commands like
lsto list the contents of the directory. -
From the Finder: Accessing system directories like
/usr/local/libdirectly from Finder isn’t straightforward because macOS hides many system folders by default. However, you can open it in Finder using theGomenu:- Open Finder.
- Press
Shift + Cmd + Gto open the “Go to the folder:” dialog. - Enter
/usr/local/liband pressEnter.
This will take you directly to the directory in Finder.
Important Note
If you’re exploring or modifying the contents of /usr/local/lib, it’s important to be cautious. Changes to files in this directory can affect the functioning of software that depends on these libraries. Always ensure you have a backup or a recovery plan before modifying system-level directories.
Adrachin:
I want to go back to the normal bash in Mac standard terminal. Who to do this?
LiquidGPT:
To switch back to using Bash as your default shell in the macOS standard Terminal from Zsh, you’ll need to use the chsh command, which stands for “change shell”. Here’s how you can do it:
Steps to Change Your Default Shell to Bash
-
Open Terminal:
You can open the Terminal application by using Spotlight (Cmd + Space), typing “Terminal”, and pressingEnter. -
Verify Bash Installation:
Before switching, confirm that Bash is available on your system. You can list all available shells by running:cat /etc/shellsLook for
/bin/bashin the output. -
Change the Shell:
If Bash is available, you can switch to it by executing the following command:chsh -s /bin/bashYou will likely be prompted to enter your password to confirm the change.
-
Restart Terminal:
Close your Terminal and open it again to start using Bash. Alternatively, you can open a new Terminal tab or window to start a session with Bash. -
Verify the Change:
To ensure that the default shell has been changed to Bash, you can check your current shell by typing:echo $SHELLIt should show
/bin/bashas the output.
Additional Information
-
Admin Rights: If you encounter any issues changing the shell (like permission errors), you might need to run
chshwith administrative rights usingsudo:sudo chsh -s /bin/bash [username]Replace
[username]with your macOS username. -
Graphical Method: You can also change the default shell using System Preferences:
- Go to System Preferences > Users & Groups.
- Right-click your user account on the left and choose Advanced Options.
- Change the value next to “Login shell” to
/bin/bash. - Click OK and restart your Terminal.
By following these steps, you can switch your default shell from Zsh back to Bash in macOS, using either the Terminal directly or the System Preferences for a graphical approach.
Adrachin:
libpacefusion_shared.dylib belongs to iLok License management. Definitely needed…
LiquidGPT:
Since you’ve determined that the libpacefusion_shared.dylib library belongs to iLok License Management, which is crucial for running software that uses iLok for authorization, it’s important to handle this carefully to ensure that your software continues to function properly.
Steps to Handle the Library:
-
Leave the Library in Place: Since the library is needed for iLok License Management, it’s best to leave it where it is. Moving or deleting it could cause the software depending on it to fail to run or authorize correctly.
-
Inform Homebrew: You can safely ignore the warning from
brew doctorregarding this library.brew doctoris primarily a diagnostic tool used to identify potential conflicts or issues in the Homebrew environment. It reports any files and libraries in Homebrew-managed directories that were not installed by Homebrew itself. -
Document the Library: It might be helpful to document why this library is present in
/usr/local/lib, especially if you work in a team or environment where others might also run diagnostics that could flag this library. Noting its purpose and necessity can prevent accidental deletion or modification by others. -
Exclude from Cleanup: If you use any system cleanup tools or scripts that might consider “unbrewed” files as targets for deletion, make sure they are configured to exclude this particular library.
Additional Considerations:
- Backup: Even though the library should remain untouched, having a backup of crucial files is always a good idea. You could back up the library to another directory or external storage.
- Check for Updates: Make sure your iLok License Manager is up to date. Occasionally, software updates might change dependency requirements or the locations of their libraries.
By understanding the role and importance of libpacefusion_shared.dylib in your system, you can ensure that your software and tools continue to function without interruption while maintaining a clean and organized system environment. If you encounter further warnings from Homebrew or other system tools, you’ll now know the context and reason why this library exists outside of Homebrew’s management.
Adrachin:
Nice. Lets continue with this:
- Python Environment
Python Installation: While macOS comes with Python installed, it’s a good practice to install a version that you can manage. Install Python using Homebrew.
Pyenv: Useful for managing multiple Python versions. It’s especially helpful if you need to switch between different projects that require different Python versions.
Virtualenv and virtualenvwrapper: These tools help manage separate package installations for different projects, ensuring that dependencies are kept isolated.
Give me step by step instruction with code for base so I can copy the commands
LiquidGPT:
Setting up a flexible and robust Python development environment on your macOS using Homebrew, Pyenv, and Virtualenv (along with virtualenvwrapper) is a great approach to manage different projects and their dependencies effectively. Here are step-by-step instructions with the commands you’ll need:
1. Install Python Using Homebrew
First, ensure Homebrew is installed and then proceed with installing Python:
brew install python
This command installs the latest stable version of Python and also includes pip, which is Python’s package installer.
2. Verify Python Installation
After installing, verify that Python and Pip are correctly installed:
python3 --version
pip3 --version
These commands should display the version of Python and Pip installed on your system.
3. Install Pyenv
Pyenv is a tool that allows you to easily switch between multiple versions of Python:
brew install pyenv
4. Configure Pyenv
After installing Pyenv, add it to your shell so it initializes automatically:
For Bash users, add to your .bash_profile or .bashrc:
echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(pyenv init --path)"' >> ~/.bash_profile
echo 'eval "$(pyenv init -)"' >> ~/.bash_profile
For Zsh users, add to your .zshrc:
echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.zshrc
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.zshrc
echo 'eval "$(pyenv init --path)"' >> ~/.zshrc
echo 'eval "$(pyenv init -)"' >> ~/.zshrc
After adding these lines, restart your terminal or source the file to apply the changes:
source ~/.bash_profile # For Bash
source ~/.zshrc # For Zsh
5. Install Virtualenv and Virtualenvwrapper
Virtualenv and Virtualenvwrapper provide a layer on top of virtualenv to manage multiple environments more easily:
pip3 install virtualenv virtualenvwrapper
6. Configure Virtualenvwrapper
Add the following lines to your shell startup file (.bash_profile or .zshrc):
For Bash:
echo 'export WORKON_HOME=$HOME/.virtualenvs' >> ~/.bash_profile
echo 'export VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python3' >> ~/.bash_profile
echo 'source /usr/local/bin/virtualenvwrapper.sh' >> ~/.bash_profile
For Zsh:
echo 'export WORKON_HOME=$HOME/.virtualenvs' >> ~/.zshrc
echo 'export VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python3' >> ~/.zshrc
echo 'source /usr/local/bin/virtualenvwrapper.sh' >> ~/.zshrc
After adding these lines, restart your terminal or source the file to apply the changes:
source ~/.bash_profile # For Bash
source ~/.zshrc # For Zsh
7. Verify Everything Works
Create a new virtual environment to test that everything is configured correctly:
mkvirtualenv testenv
Activate the environment:
workon testenv
You should see the environment name prefixed in your terminal, indicating that you are working inside the virtual environment.
Cleanup
Deactivate and remove the test environment when done:
deactivate
rmvirtualenv testenv
These steps set up a highly configurable and isolated Python development environment on your macOS, enabling you to manage different projects and Python versions efficiently.
Adrachin:
what was the command to change to zsh?
LiquidGPT:
To change your default shell to Zsh on macOS, you can use the chsh command, which stands for “change shell”. Here’s how you can change your shell to Zsh:
Step-by-Step Command to Switch to Zsh
-
Open your Terminal:
This could be the standard Terminal app, iTerm2, or any other terminal emulator you are using. -
Verify Zsh Installation:
First, ensure that Zsh is installed on your system. You can do this by checking the available shells:cat /etc/shellsLook for
/bin/zshin the list. This confirms that Zsh is installed on your system. -
Change the Default Shell:
Use thechshcommand to change your default shell to Zsh:chsh -s /bin/zshYou will likely be prompted to enter your password. This change will take effect the next time you log in.
-
Restart your Terminal:
Close your terminal and open it again, or start a new session/tab to initialize Zsh as your default shell. -
Verify the Change:
To make sure that the shell has been changed, you can print the current shell path:echo $SHELLThis should output
/bin/zshif the change was successful.
These steps will switch your default shell from Bash or any other shell you were using to Zsh, enhancing your terminal experience with the features and improvements Zsh offers.
Adrachin:
I See this error:
pip3 install virtualenv virtualenvwrapper
error: externally-managed-environment
× This environment is externally managed
╰─> To install Python packages system-wide, try brew install
xyz, where xyz is the package you are trying to
install.
LiquidGPT:
The error you’re seeing indicates that pip is trying to install packages in a Python environment managed by another system, such as Homebrew, which restricts pip from making changes. This is a protective measure to avoid conflicts between packages managed by Homebrew and those managed by pip.
Solution 1: Use Homebrew to Install virtualenv
Since the error suggests using Homebrew for installations, you can try installing virtualenv directly through Homebrew:
brew install virtualenv
However, virtualenvwrapper is not directly available via Homebrew. For that part, you might need to consider an alternative approach.
Solution 2: Installing virtualenvwrapper with pip (Environment Adjustment)
You can try to bypass the restriction by using a Python version managed by Pyenv or by temporarily adjusting the environment variable that controls where pip installs packages. Here’s how you can do it with Pyenv:
-
Install a specific Python version with Pyenv:
pyenv install 3.8.5 # Example: Install Python 3.8.5 pyenv global 3.8.5 # Set this version as global default -
Rehash Pyenv:
pyenv rehash -
Ensure the Python and pip versions are set by Pyenv:
which python which pipBoth commands should point to paths within the
.pyenvdirectory. -
Try installing again:
pip install virtualenv virtualenvwrapper
This method ensures that pip operates within a Python environment managed by Pyenv, circumventing the restriction imposed by Homebrew’s management.
Solution 3: Creating a Virtual Environment Using Python from Homebrew
If you’ve installed Python through Homebrew, it comes with pip and you can still use it to create virtual environments:
-
Creating a Virtual Environment:
python3 -m venv myenv -
Activating the Virtual Environment:
- On macOS or Linux:
source myenv/bin/activate
- On macOS or Linux:
-
Install Packages Inside the Virtual Environment:
Once the virtual environment is activated, usepipto install any package you need within this environment.
This approach uses the built-in venv module, which has been included in Python since version 3.3 and offers functionality similar to virtualenv.
Recommendation
I recommend starting with Solution 1 or Solution 3 for simplicity. Solution 2 is more robust if you need more granular control over different Python versions across various projects, as it utilizes Pyenv for Python version management.
Adrachin:
This was successful:
~ brew install virtualenv
==> Downloading https://ghcr.io/v2/homebrew/core/virtualenv/manifests/20.26.0
######################################################################### 100.0%
==> Fetching virtualenv
==> Downloading https://ghcr.io/v2/homebrew/core/virtualenv/blobs/sha256:bfe01d1
######################################################################### 100.0%
==> Pouring virtualenv—20.26.0.arm64_sonoma.bottle.tar.gz
🍺 /opt/homebrew/Cellar/virtualenv/20.26.0: 173 files, 5.2MB
==> Running brew cleanup virtualenv…
Disable this behaviour by setting HOMEBREW_NO_INSTALL_CLEANUP.
Hide these hints with HOMEBREW_NO_ENV_HINTS (see man brew).
Whats next?
LiquidGPT:
Great! Now that you’ve successfully installed virtualenv using Homebrew, the next steps involve creating and managing virtual environments for your Python projects. This will allow you to maintain isolated environments for different projects, each with its own set of dependencies.
Creating a Virtual Environment
-
Create a New Virtual Environment:
You can create a new virtual environment in your project directory (or any directory where you want to keep your project). Replacemy_project_envwith the name you want to give to your virtual environment:virtualenv my_project_env -
Activate the Virtual Environment:
To start using this environment, you need to activate it. Activation changes your shell’s environment to use the Python and pip executables and libraries from the virtual environment rather than the global system ones.- On macOS or Linux:
source my_project_env/bin/activate
Once activated, you’ll see the name of your virtual environment prefixed to your shell prompt, indicating that any Python or pip commands will now use the environment’s settings and installed packages.
- On macOS or Linux:
Installing Packages
- Install Python Packages:
With your virtual environment activated, you can install Python packages usingpip. These installations will be local to the virtual environment and won’t affect the global Python installation. For example:pip install flask
Deactivating the Virtual Environment
- Deactivate the Virtual Environment:
When you’re done working in the virtual environment, you can deactivate it to return to your global Python environment:deactivate
Managing Multiple Environments
- Managing Multiple Projects:
You can create separate virtual environments for different projects to keep their dependencies isolated from each other. Just repeat the creation and activation steps in different project directories.
Next Steps
- Organize Your Projects: Keep each project in its own directory with its respective virtual environment to maintain clean separation of environments.
- Version Control: Use Git or another version control system to manage your project files, excluding the virtual environment directory (
my_project_env/in the example). You can add this directory to your.gitignorefile. - Backup and Documentation: Keep backups of your projects and document the requirements of each project by exporting the list of installed packages:
pip freeze > requirements.txt
This file can be committed to version control, allowing anyone else working on the project (or you, on another machine) to set up an identical environment using:
pip install -r requirements.txt
These steps will help you effectively manage your Python projects using virtual environments, promoting best practices in development environments.
Adrachin:
This the output of the command crating the new environment:
~ virtualenv 110_days_python
created virtual environment CPython3.12.3.final.0-64 in 221ms
creator CPython3macOsBrew(dest=/Users/thomas/110_days_python, clear=False, no_vcs_ignore=False, global=False)
seeder FromAppData(download=False, pip=bundle, via=copy, app_data_dir=/Users/thomas/Library/Application Support/virtualenv)
added seed packages: pip==24.0
activators BashActivator,CShellActivator,FishActivator,NushellActivator,PowerShellActivator,PythonActivator
LiquidGPT:
The output you’ve provided confirms that the virtual environment named 110_days_python has been successfully created on your system. This environment is set up with Python 3.12.3 and includes pip version 24.0 as a seed package, allowing you to manage additional packages within this isolated environment.
What’s Next? Steps to Use Your New Virtual Environment
Here are your next steps to use and manage your new virtual environment:
1. Activating the Virtual Environment
To start using the virtual environment and install packages within it, you need to activate it. Depending on your shell, you use the appropriate activation script. For most macOS users using Bash or Zsh:
source 110_days_python/bin/activate
Once activated, you should see the name of the virtual environment (110_days_python) prefixed to your command prompt. This indicates that you are currently working inside the virtual environment.
2. Install Python Packages
With the virtual environment activated, you can install any necessary Python packages using pip. For example, if you’re working on a web project, you might want to install Flask:
pip install flask
Each package you install will only be available within this virtual environment and will not affect the global Python installation or other environments.
3. Working Within the Environment
While the environment is activated, you can run Python scripts, use Python interactively, or use any tools installed in this environment. All commands will use the Python and libraries configured within the 110_days_python environment.
4. Deactivating the Virtual Environment
When you are finished working in the virtual environment and want to return to your system’s global Python environment, you can deactivate it by running:
deactivate
This command will revert your shell’s environment to the system defaults.
5. Managing the Environment
-
Freeze Requirements: If you wish to keep a record of all installed packages for reproducibility or version control, you can freeze the current state of installed packages into a
requirements.txtfile:pip freeze > requirements.txt -
Install from Requirements: To install all packages listed in a
requirements.txtfile (useful for new setups or other machines):pip install -r requirements.txt -
Keep the Environment Clean: Only activate the virtual environment when working on the project associated with it to keep dependencies from mixing across projects.
By following these steps, you are effectively isolating your project dependencies, which is crucial for maintaining consistent development environments, especially when working on multiple projects or collaborating with others.
Adrachin:
I do not need anything else for this project 110_days and so on. So lets move forward to editors:
LiquidGPT:
Great! Moving forward to setting up and configuring an editor for your Python and web development projects, there are several excellent options available. The most popular and widely used editors for Python development include Visual Studio Code (VS Code), PyCharm, and Sublime Text. Here, I’ll focus on setting up Visual Studio Code (VS Code) due to its versatility, powerful features, extensive plugin ecosystem, and broad acceptance among developers.
Setting Up Visual Studio Code (VS Code)
1. Download and Install VS Code
- Download VS Code: Visit the official Visual Studio Code website and download the version for macOS.
- Install VS Code: Open the downloaded
.dmgfile and drag VS Code to your Applications folder.
2. Open VS Code
- You can open VS Code from your Applications folder, or use Spotlight (
Cmd + Space) and type “Visual Studio Code”.
3. Install Essential Extensions
VS Code’s functionality can be significantly enhanced with extensions. Here are some recommended extensions for Python and web development:
-
Python (by Microsoft): Provides rich support for Python with features like IntelliSense, linting, debugging, code navigation, code formatting, Jupyter notebook support, refactoring, and more.
- Installation: Search for “Python” in the Extensions view (
Cmd + Shift + X) and install the one by Microsoft.
- Installation: Search for “Python” in the Extensions view (
-
Pylance: Pylance supercharges Python IntelliSense with fast, feature-rich language support derived from the Pyright static type checker.
- Installation: Search for “Pylance” in the Extensions view and install it.
-
ESLint: Integrates ESLint JavaScript into VS Code. Useful for maintaining code quality for your JavaScript code.
- Installation: Search for “ESLint” and install it.
-
Live Server: Launches a development local Server with live reload feature for static & dynamic pages.
- Installation: Search for “Live Server” and install it.
-
Docker: Makes it easy to build, manage, and deploy containerized applications from VS Code.
- Installation:
Adrachin:
Nice. Done so far. Letzt do the famose “hello world” in VS code and test it
LiquidGPT:
Excellent! Let’s create and run a simple “Hello, World!” Python script using Visual Studio Code. This will help you ensure that everything is set up correctly and that you can write and execute Python code smoothly.
Steps to Create and Run a “Hello, World!” Program in VS Code
1. Open VS Code
Start by opening Visual Studio Code.
2. Create a New Python File
- Create a New File: Go to
File > New Fileor use the shortcutCmd + N. - Save the File: Save the file with a
.pyextension, such ashello_world.py. You can save it by going toFile > Save Asor using the shortcutCmd + S. Choose a directory that makes sense for your project or testing.
3. Write the Python Code
In the new file, type the following Python code:
print("Hello, World!")
4. Install Python if Not Already Done
Make sure Python is installed and configured in VS Code. You can check this by:
- Opening the Command Palette (
Cmd + Shift + P). - Typing “Python: Select Interpreter”.
- Choosing the Python version you have installed (it should point to the Python executable in your virtual environment if you are using one).
5. Run the Python Script
- Run the Script: You can run the script by right-clicking in the text editor where your script is open and selecting
Run Python File in Terminal. Alternatively, you can also use the play button in the top-right corner of the editor (if available). - View the Output: The output, “Hello, World!”, should appear in the integrated terminal at the bottom of the VS Code window.
6. Debugging the Program (Optional)
If you want to try out debugging features:
- Set a Breakpoint: Click in the gutter (to the left of the line numbers) on the line with the
printstatement to set a breakpoint. - Start Debugging: Go to the
Runmenu and selectStart Debugging, or pressF5. - Inspect: The debugger will stop at the breakpoint, allowing you to inspect variables, step through code, and explore features available in debugging mode.
7. Additional Settings and Extensions
- Enhance VS Code for Python: Consider configuring settings such as linting, formatting (with tools like Black or Pylint), and more sophisticated debugging options through the settings and extensions.
Running this simple “Hello, World!” script will confirm that your VS Code setup is correctly configured for Python development, and it will also familiarize you with basic IDE functions like editing, saving, running, and debugging Python code. This foundation will be very helpful as you develop more complex Python applications.
Adrachin:
Tell me more about this:
Enhance VS Code for Python: Consider configuring settings such as linting, formatting (with tools like Black or Pylint), and more sophisticated debugging options through the settings and extensions.
LiquidGPT:
Enhancing Visual Studio Code for Python development involves configuring additional tools and settings that improve code quality, readability, and ease of debugging. Some of the key enhancements include setting up linting, formatting, and advanced debugging capabilities. Here’s how you can set these up:
1. Linting with Pylint
Linters analyze your code for programming errors, bugs, stylistic errors, and suspicious constructs. Pylint is a popular linter for Python.
Installing and Configuring Pylint
-
Install Pylint: If not already installed, you can install Pylint in your virtual environment:
pip install pylint -
Enable Pylint in VS Code:
- Open the Command Palette (
Cmd + Shift + P). - Type
Python: Select Linter. - Select
Pylintfrom the list.
- Open the Command Palette (
VS Code might prompt you to install Pylint if it’s not found, and it can automatically configure itself to use Pylint for your Python files.
2. Code Formatting with Black
Black is a popular code formatter for Python that enforces a consistent code style. It makes your code more readable and diff-friendly.
Installing and Configuring Black
-
Install Black: You can install Black in your virtual environment:
pip install black -
Configure VS Code to Use Black:
- Go to Settings (
Cmd + ,). - Search for “Python Formatting Provider” and select
Blackfrom the dropdown. - Enable format on save by searching for “Editor: Format On Save” and checking the box. This will automatically format your code each time you save a file.
- Go to Settings (
3. Advanced Debugging
VS Code has powerful debugging capabilities that can be tailored for complex Python applications.
Setting Up Debugging
- Configure the Debugger:
- Go to the Debug view by clicking the Debug icon on the left sidebar or pressing
Cmd + Shift + D. - Click on
create a launch.json file, then select the Python environment. VS Code will automatically create alaunch.jsonfile in your.vscodefolder. This file tells VS Code how to handle debugging. - You can customize this file to specify Python scripts or modules to run, set program arguments, configure environment variables, etc.
- Go to the Debug view by clicking the Debug icon on the left sidebar or pressing
Debugging Features
- Breakpoints: Set breakpoints by clicking in the gutter next to the line numbers where you want the execution to pause.
- Step Over, Step Into, Step Out: Control the execution flow during debugging. Use these to execute code line by line and dive into or step out of functions.
- Inspect Variables: When execution is paused, inspect variables in the ‘Variables’ pane in the Debug sidebar.
- Watch Expressions: Track the values of specific expressions as you step through code.
- Call Stack: View the call stack during a debug session to see the path your code has taken to reach the current point.
4. Extensions for Enhanced Functionality
Consider additional extensions that could further enhance your Python development experience:
- GitLens: Enhances the built-in Visual Studio Code Git capabilities.
- Docker: Simplifies Docker use for developing, managing, and deploying containerized applications.
- Remote - SSH: Allows you to use any remote machine with a SSH server as your development environment.
By configuring these settings and tools in VS Code, you can significantly enhance your productivity and code quality in Python projects, ensuring that your development environment supports best practices and efficient workflows.
Adrachin:
I am on zh right now:
zsh: command not found: pip
➜ 110_days_python
LiquidGPT:
If you’re encountering a “command not found: pip” error in your Zsh terminal, it suggests that the pip executable isn’t in your shell’s PATH, or it may not be installed correctly. Here are several steps to diagnose and resolve this issue:
1. Check if Python and Pip Are Installed
First, verify that Python and pip are indeed installed:
python3 --version
This should display the version of Python 3 installed. If Python is installed, you can check for pip by trying:
pip3 --version
If python3 --version shows Python is installed but pip3 --version still results in a command not found error, then pip might need to be installed or the path needs to be fixed.
2. Installing Pip
If pip isn’t installed (which is unusual for Python 3.4 and later as pip comes bundled with Python), you can install it using the following command:
python3 -m ensurepip
3. Add Pip to PATH
If pip is installed but not found, it’s likely a PATH issue. For macOS, the typical path to pip when installed with Python from the Python.org installer would be in /Library/Frameworks/Python.framework/Versions/3.x/bin/pip3, or if installed via Homebrew, it might be in /usr/local/bin/pip3. To add pip to your PATH:
-
Determine where
pipis installed:find /usr /Library -name pip3 2>/dev/null -
Once you know where
pip3is located, add it to yourPATHby adding a line to your.zshrcfile:echo 'export PATH="/path/to/pip3:$PATH"' >> ~/.zshrcReplace
"/path/to/pip3"with the path you found. -
Source your
.zshrcto update the changes in your current session:source ~/.zshrc
4. Check Python Installation
If you installed Python via Homebrew and it’s not setting up pip correctly, make sure your installation is configured properly:
brew install python3
This command will install Python and pip3 should automatically be included. After installation, run:
which pip3
pip3 --version
This should now return the path to pip3 and its version, confirming it’s available.
5. Using Python and Pip in Virtual Environments
Since you’re working within a virtual environment (110_days_python), ensure that the environment is activated before using pip. Only an activated environment will use its own local pip:
source 110_days_python/bin/activate
Once activated, the pip command should refer to the local version inside the virtual environment.
Final Check
After following these steps, running pip3 --version in your terminal should now provide the version of pip installed, indicating that pip is correctly set up and recognized in your shell environment. This setup allows you to continue working on Python projects using the appropriate package installations.
Adrachin:
The pip path is:
/opt/homebrew/lib/python3.12/site-packages/pip (python 3.12)
write the source command
LiquidGPT:
Based on the path you provided, it looks like pip is installed under the Python site-packages directory, which means pip is installed with Python but not necessarily added correctly to your system’s PATH. The executable itself should be in a bin directory rather than the site-packages directory. You’ll need to locate the pip executable and ensure it’s in your PATH.
Finding the pip Executable
Let’s try finding the actual executable for pip. Since you’re using Homebrew and Python 3.12, pip should typically be installed at /opt/homebrew/bin/pip3 or /opt/homebrew/bin/pip. You can confirm this by checking these locations:
ls /opt/homebrew/bin/pip3
ls /opt/homebrew/bin/pip
If you find pip3 in one of these locations, that’s the path you’ll want to add to your PATH environment variable.
Adding Pip to Your PATH
If the pip executable is in /opt/homebrew/bin/, you can add it to your PATH by updating your .zshrc file:
echo 'export PATH="/opt/homebrew/bin:$PATH"' >> ~/.zshrc
source ~/.zshrc
This command adds Homebrew’s bin directory to your PATH, ensuring that pip and other Homebrew-managed executables are available in your shell.
Activating Your Virtual Environment
Once pip is correctly in your path, make sure to activate your virtual environment before using pip to manage packages within that environment. Since your virtual environment is named 110_days_python, activate it like this:
source 110_days_python/bin/activate
After activation, your shell prompt should change to indicate that the virtual environment is active, and using pip will now refer to the version of pip within your virtual environment, not the global version.
Verifying Pip Installation
After adding the correct path and sourcing your .zshrc, verify that pip is accessible:
which pip
pip --version
This should show the path to pip and its version, confirming that it is now correctly set up in your environment.
Adrachin:
This does not work:
Type Python: Select Linter.
LiquidGPT:
To configure a linter in Visual Studio Code (VS Code) for Python, you generally do this through the Command Palette and settings within VS Code. If typing “Python: Select Linter” into the Command Palette doesn’t bring up the expected options, here are some steps to ensure everything is set up correctly and troubleshoot potential issues.
Ensure Python Extension is Installed
First, make sure that the Python extension by Microsoft is installed in VS Code, as this extension is necessary for Python-related features like linting.
- Open Extensions View: Use the shortcut
Cmd + Shift + Xor click on the Extensions icon in the sidebar. - Search for Python: Type “Python” into the search bar, and look for the Python extension by Microsoft.
- Install/Check the Extension: If it’s not installed, click the Install button. If it’s already installed, it will show as installed.
Access the Command Palette and Select Linter
Once the Python extension is installed:
- Open the Command Palette: Use the shortcut
Cmd + Shift + P. - Type the Command: Start typing “Python: Select Linter”. As you type, suggestions should appear. If the correct command does not appear, there might be an issue with the Python extension loading properly.
If “Python: Select Linter” Does Not Appear
If you still can’t find the “Python: Select Linter” command, try the following:
Reload VS Code
Sometimes extensions may not load correctly, and a simple reload can fix this:
- Reload Window: Open the Command Palette (
Cmd + Shift + P) and type “Developer: Reload Window”, then select it.
Check the Python Environment
Ensure that VS Code is using the correct Python interpreter where pylint or other linters are installed:
- Open the Command Palette:
Cmd + Shift + P. - Type: “Python: Select Interpreter” and choose the interpreter you wish to use, preferably one where you have the linter installed.
Reinstall the Python Extension
If the above doesn’t work:
- Go to Extensions:
Cmd + Shift + X. - Find Python by Microsoft: Click on it, then choose Uninstall.
- Reinstall: Search for it again in the Extensions view and reinstall.
Manually Configure the Linter in Settings
If you can’t get the Command Palette to allow you to select the linter:
- Open Settings: Use
Cmd + ,or go to Code > Preferences > Settings. - Search for Linter Settings: Type “Python Linting” in the search bar.
- Enable Linting: Make sure that linting is enabled.
- Select Linter Manually: You can specify which linter to use (
pylint,flake8, etc.) by manually setting thepython.linting.<linterName>Enabledtotrue.
Verify Linter Installation
Make sure the linter is installed in the selected Python environment:
pip install pylint
Final Checks
After ensuring all settings are correct, try accessing the Command Palette again to set the linter. If there are still issues, it might be helpful to look at the output or debug console in VS Code for any errors related to the Python extension or linting tools.
Adrachin:
“Python: Select Linter” no Linter in the list. Only selection of interpreter is visible
LiquidGPT:
If you’re not seeing any linters available in the list when trying to configure linting via the “Python: Select Linter” command in Visual Studio Code (VS Code), it might be because no linters are currently installed in the Python environment that VS Code is using, or there might be an issue with the VS Code Python extension detecting installed linters. Here’s how you can address this issue:
Step 1: Install a Linter
First, ensure that a linter such as pylint is installed in your currently selected Python interpreter. You can install pylint or another linter using pip. Here’s how to do this:
- Open the Terminal in VS Code: Use the shortcut `Ctrl + “ (backtick) to open the integrated terminal.
- Activate Your Python Environment: If you’re using a virtual environment, make sure to activate it. For example:
source /path/to/your/env/bin/activate # For Unix/macOS - Install Pylint:
pip install pylint
Step 2: Select the Linter in VS Code
After installing a linter, try selecting it again in VS Code:
- Open the Command Palette:
Cmd + Shift + P. - Type and Select: Type “Python: Select Linter” and see if the installed linters appear in the list now.
Step 3: Check VS Code Configuration
If the linter is installed but still not appearing in the Command Palette, check the Python extension’s configuration in VS Code:
- Go to Settings:
Cmd + ,orCode > Preferences > Settings. - Search for Python Linting: Ensure linting is enabled. You should see settings like
python.linting.enabledset to true. - Manually Set Linter: You can also manually set the linter in the settings JSON file:
- Open settings JSON:
Cmd + Shift + P, then type “Preferences: Open Settings (JSON)” and select it. - Add or modify the following lines:
"python.linting.pylintEnabled": true, "python.linting.enabled": true
- Open settings JSON:
Step 4: Reload or Restart VS Code
Sometimes extensions or settings changes may not take effect until you reload or restart VS Code:
- Reload Window: Open the Command Palette (
Cmd + Shift + P), type “Developer: Reload Window”, and select it.
Step 5: Verify the Environment
Make sure that VS Code is using the correct Python interpreter where the linter was installed:
- Select Interpreter:
Cmd + Shift + P, type “Python: Select Interpreter”, and make sure it’s set to the environment where you installedpylint.
Additional Troubleshooting
- Check the Output Panel: Sometimes errors or issues with Python tools in VS Code are logged in the Output panel. You can view this by going to
View > Output, then selecting “Python” in the dropdown menu at the right of the Output panel. - Ensure No Conflicts: If there are multiple Python extensions installed in VS Code (e.g., Python and Pylance), ensure they are configured to work together without conflicts.
By following these steps, you should be able to resolve the issue of not seeing linters in the “Python: Select Linter” list and ensure that linting is properly set up in your VS Code environment.
Adrachin:
what was the command to check the path to python?
LiquidGPT:
To check the path to the Python interpreter that you are currently using, you can use the following command in your terminal:
which python
Or, if you’re specifically using Python 3 (which is recommended since Python 2 has reached end-of-life), you can use:
which python3
This command will show you the full path of the Python executable that is being called by default when you use the python or python3 command in your terminal. It’s useful for confirming which Python installation is being used, especially if you have multiple versions installed or are using virtual environments.
Adrachin:
which python3
LiquidGPT:
To run the command which python3 and see the output, you’ll need to enter it into your terminal. This command will display the path to the Python 3 interpreter that your system is currently configured to use. Here’s how you can proceed:
-
Open your terminal:
- You can use Terminal, iTerm2, or any other terminal application on your system.
-
Type the command:
which python3 -
Press Enter:
- After pressing Enter, the terminal will display the full path to the Python 3 executable if it is installed and found in the system’s
PATH.
- After pressing Enter, the terminal will display the full path to the Python 3 executable if it is installed and found in the system’s
This path tells you where Python 3 is installed on your machine, which is useful for understanding which Python version is being used by default when you run python3 commands.
Adrachin:
Here we go:
(110_days_python) ➜ ~ which python
/Users/thomas/110_days_python/bin/python
(110_days_python) ➜ ~ which python3
/Users/thomas/110_days_python/bin/python3
(110_days_python) ➜ ~ which python3
LiquidGPT:
Great! The output from the which command shows that when you use python or python3, it’s using the Python interpreter located in the bin directory of your 110_days_python virtual environment. This indicates that your virtual environment is activated correctly, and any Python commands or scripts you run, as well as any Python packages you install with pip, will be confined to this virtual environment. This is exactly what you want for project-specific dependencies and settings to avoid affecting the global Python installation.
What This Means
-
Isolation: Using the Python interpreter from the virtual environment ensures that any libraries or tools you install are local to that environment. This prevents conflicts with other projects and makes your project dependencies clear and manageable.
-
Development Safety: Working within a virtual environment allows you to experiment with different package versions without risk to the global Python environment, making it safer to try out new or updated libraries.
-
Reproducibility: By using a virtual environment, you can easily generate a
requirements.txtfile that lists all your project’s dependencies. This file can then be used to recreate the same environment elsewhere, enhancing consistency across development, testing, and production stages.
Next Steps
Since your environment is set up correctly, you can proceed with developing your project:
-
Install Packages: Install any required packages using
pip install <package-name>. These installations will be specific to your virtual environment. -
Run Python Scripts: Any scripts you run will use this instance of Python, ensuring that they utilize the correct versions of any libraries you’ve installed.
-
Deactivate Environment: When you’re done working in the virtual environment, you can deactivate it by typing
deactivatein your terminal. This will revert to using the system-wide Python installation. -
Reactivate Environment: To work on your project again, navigate to your project directory and activate the virtual environment with
source 110_days_python/bin/activate.
Your setup is well-configured, and you’re ready to proceed with your project development securely and efficiently!
Adrachin:
While I like the idea to have virtual development environment I do not want to install python an all dependencies in all of them I will set up in the future. I would like a global accessible environment for python to be accessible from everywhere. Lets change that.
LiquidGPT:
Creating a globally accessible Python environment that all your projects can share is a good approach if you prefer not to manage multiple virtual environments and are okay with having a single global set of dependencies. This can simplify management but may reduce isolation between projects. Here’s how you can set up a globally accessible Python installation:
Step 1: Install Python Globally
If you haven’t already installed Python globally, or want to ensure you have the latest version installed via Homebrew (which I recommend for easy updates and management), you can do so as follows:
- Open your Terminal.
- Install Python with Homebrew:
brew install python
This command installs the latest version of Python and Pip. After installation, the Python binary is typically linked to python3 and pip3 to avoid conflicting with the system Python on macOS.
Step 2: Ensure Global Python is in PATH
Make sure the Homebrew-installed Python is the one being used by default:
-
Check the Python Path:
which python3This should point to
/usr/local/bin/python3or/opt/homebrew/bin/python3depending on your system architecture and Homebrew installation. -
Configure the PATH (if necessary):
- Homebrew typically handles this for you, but you can verify by checking your
.zshrcor.bash_profile:echo $PATH - Ensure the path to Homebrew’s bin directory (
/usr/local/binor/opt/homebrew/bin) is included and prioritized.
- Homebrew typically handles this for you, but you can verify by checking your
Step 3: Install Global Python Packages
Now, you can install any Python packages you want available globally:
pip3 install numpy pandas matplotlib
Replace numpy pandas matplotlib with any packages you commonly use.
Step 4: Configure Any Development Tools
Adjust any IDEs or editors (like VS Code) to use the global Python interpreter:
- In VS Code:
- Open the Command Palette (
Cmd + Shift + P). - Search for and select
Python: Select Interpreter. - Choose the interpreter that points to Homebrew’s Python (
/usr/local/bin/python3or/opt/homebrew/bin/python3).
- Open the Command Palette (
Step 5: Set Up Environment Variables (if needed)
If your projects need specific environment variables:
- Edit
.zshrcor.bash_profile:echo 'export MY_VARIABLE=value' >> ~/.zshrc source ~/.zshrc
Step 6: Optional: Manage Python Versions with Pyenv
If you need to switch between multiple versions of Python for different projects, consider using pyenv:
-
Install Pyenv:
brew install pyenv -
Add Pyenv to your shell initialization script:
echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n eval "$(pyenv init -)"\nfi' >> ~/.zshrc source ~/.zshrc -
Install different Python versions:
pyenv install 3.8.5 pyenv install 3.9.2 -
Set global Python version with Pyenv:
pyenv global 3.9.2
Conclusion
By setting up Python globally, you streamline your environment management, making it easier to maintain and update. However, remember that this approach can lead to potential conflicts between project dependencies if different projects require different versions of the same packages.
Adrachin:
what is the command to go back on folder in a path?
LiquidGPT:
To navigate back one folder (or directory) in a path while using a terminal, you can use the cd command followed by ... The .. represents the parent directory of the current directory you’re in. Here’s how you can use it:
cd ..
This command will move you up one level in the directory structure. For example, if you’re currently in /Users/yourname/Documents/Projects, running cd .. will take you to /Users/yourname/Documents.
If you want to move up multiple levels in the directory structure, you can chain .. with slashes. For instance, to move up two levels:
cd ../..
This command moves you up two directories from your current location.
Adrachin:
Is this a problem?
which python3
/opt/homebrew/bin/python3
LiquidGPT:
The output from which python3 showing /opt/homebrew/bin/python3 indicates that the Python 3 interpreter you’re using is the one installed via Homebrew on your macOS. This is typically considered a good and expected configuration, especially on Macs where Homebrew is a popular and reliable package manager for managing software installations. Here’s why this is generally not a problem and can actually be beneficial:
Advantages of Using Homebrew’s Python
-
Up-to-Date Versions: Homebrew usually provides the latest stable version of Python, which means you get access to the newest features and improvements in the Python language and standard library.
-
Separation from System Python: macOS comes with its own pre-installed version of Python (Python 2 on older systems, no Python on the very latest versions). Using the Homebrew version avoids potential conflicts with macOS’s system operations that might rely on the specific version of Python installed by Apple. Apple has also been phasing out bundled scripting languages to encourage users to manage their own installations, which makes Homebrew an even better choice.
-
Easy Package Management: Homebrew makes it easy to install, uninstall, and update Python. It also simplifies the management of additional tools and libraries, integrating smoothly with
pip, Python’s package installer. -
Flexibility with Multiple Python Versions: If you need multiple versions of Python for different projects, you can still use Homebrew along with a version management tool like
pyenvto handle this cleanly.
Ensuring Proper Configuration
Here are a few tips to ensure that using Homebrew’s Python doesn’t lead to problems:
-
Set the PATH Correctly: Homebrew typically handles this for you, but you should ensure your shell’s
PATHenvironment variable includes/opt/homebrew/bin(or/usr/local/binon Intel Macs). This ensures that the Homebrew-managed binaries are prioritized over other installations.echo $PATHThis command should show
/opt/homebrew/binat or near the beginning of the output. -
Use Virtual Environments: To avoid conflicts between project dependencies, use virtual environments for each project. This isolates the packages needed for each project and avoids polluting the global site-packages directory. You can use
venv(built into Python 3) orvirtualenv. -
Regularly Update Homebrew and Python: Keep Homebrew and Python up to date to benefit from the latest security patches and features.
brew update brew upgrade python
Using Homebrew’s Python is generally a safe and efficient choice for development, especially when managed properly with the practices mentioned above. If you have specific needs or constraints, such as strict version control or deployment consistency, further customization and tools might be necessary, but for most users and use cases, this setup should work well.
Adrachin:
/opt/homebrew/bin:/path/to/pip3:/Users/thomas/.pyenv/shims:/Users/thomas/.pyenv/bin:/Users/thomas/.pyenv/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin
LiquidGPT:
Based on the PATH variable content you’ve shared, it seems like your system is set up to prioritize the Homebrew-installed binaries (/opt/homebrew/bin and /opt/homebrew/sbin), which is generally a good configuration. There are, however, a few points and adjustments worth noting to optimize your setup:
Review of Your PATH Configuration
-
Duplicate Entries: Your
PATHincludes duplicate entries for Homebrew’sbinandsbindirectories, as well as multiple entries for Pyenv’sbin. This redundancy doesn’t typically cause problems but does clutter your environment setup and can be cleaned up for efficiency and clarity. -
Custom
pipPath: There is a/path/to/pip3in yourPATH. If this is a placeholder you added for example purposes, ensure that the actual path topip3is correct if you have a custom installation location for Python packages. If it’s meant to be literal, it should be updated to the correct directory wherepip3is located. -
Priority of Python and Pyenv: The Pyenv paths appear before the Homebrew paths. This is correct if you are using Pyenv to manage different Python versions, as it ensures that the Python version and any executables managed by Pyenv take precedence over those installed by Homebrew.
Suggestions for Optimization
-
Remove Duplicate Paths:
Simplify yourPATHby removing duplicates. This can be done by editing your.zshrcor.bash_profile(depending on your shell). For instance, if you’re using Zsh:nano ~/.zshrcLook for lines that export
PATHand remove or adjust duplicate entries. Save the file and source it:source ~/.zshrc -
Correct Custom Paths:
Ensure that all paths are valid and necessary. If/path/to/pip3is not correct, locate the actualpip3executable usingwhich pip3and adjust thePATHaccordingly. -
Consolidate Configuration:
If you are actively using Pyenv along with Homebrew, ensure their configuration in your shell initialization files is set to properly coexist, ensuring Pyenv’s shims directory is correctly prioritized.
Validate Your Changes
After making changes, validate your PATH and the functionality of Pyenv, Homebrew, and pip by running:
echo $PATH
which python
which pip3
pyenv versions
brew doctor
This will help ensure that your environment is set up correctly and all major tools are functioning as expected. These checks are crucial after making edits to your configuration files to prevent any disruptions in your development workflow.
Adrachin:
I understand what happened
LiquidGPT:
Great! Understanding what’s going on with your system configuration, especially regarding paths and environment settings, is crucial for effectively managing and troubleshooting your development environment. If you have any more questions, need further clarifications, or want to delve deeper into another topic, feel free to ask. I’m here to help you with any additional details or guidance you might need!
Adrachin:
When I installed iTerm a message popped up telling that part are missing needed from the Mac development packages. I quit this and it installed several thing with no clear output. That was the point the home-brew version came into the system and was set up like shown in the path output from which python
LiquidGPT:
Ah, I see! The message you encountered during the installation of iTerm2 likely referred to Xcode Command Line Tools, which are a prerequisite for many development tasks on macOS, including using Homebrew and compiling software from source. The installation of these tools would have included compilers like gcc, and utilities like git, which are essential for Homebrew and other development workflows.
Here’s a breakdown of what likely happened:
-
Xcode Command Line Tools Installation: When you tried to install iTerm2, macOS detected the absence of Xcode Command Line Tools, which are required for compiling and managing various software packages on macOS. By continuing the installation, it triggered macOS to install these tools automatically.
-
Homebrew Setup and Configuration: After the command line tools were installed, any subsequent installation via Homebrew (like Python) would then configure itself based on the new developer environment. This includes placing executables in
/opt/homebrew/binor/usr/local/bin, depending on the architecture of your Mac (Intel or Apple Silicon). -
Path Configuration: The installation scripts from Homebrew or other tools might have modified your shell’s PATH environment, as observed in your
which python3output. This is standard for ensuring the shell uses the newly installed versions of tools like Python, rather than any system-provided versions.
What You Should Do Next:
-
Verify Xcode Command Line Tools: Ensure that Xcode Command Line Tools are correctly installed. You can check by running:
xcode-select --installIf already installed, it will tell you so; otherwise, it will prompt you to install.
-
Check Homebrew Health: Run
brew doctorto ensure that there are no issues with your Homebrew installation.brew doctor -
Review and Clean Up PATH: Review your
PATHenvironment variable to ensure there are no unnecessary or duplicate entries, as discussed earlier. -
Test Development Tools: Run tests to ensure all key development tools you need are functioning correctly. This can include compiling a simple program or running a Python script.
-
Update and Upgrade Homebrew Packages: Keep your Homebrew-managed packages up to date:
brew update brew upgrade
By understanding how these components interact and ensuring they are configured correctly, you can create a robust and efficient development environment. If you have any further questions about setting up or managing your environment, feel free to ask!
Adrachin:
~ cd 110_days_python
➜ 110_days_python ls
Test Scripts bin lib pyvenv.cfg
➜ 110_days_python cd Test\ Scripts
➜ Test Scripts ls
hello-world.py
➜ Test Scripts ./hello-world.py
zsh: permission denied: ./hello-world.py
➜ Test Scripts
LiquidGPT:
It looks like you’re encountering a permissions issue when trying to run your hello-world.py script from the command line. The “permission denied” error suggests that the script is not executable or you do not have the necessary execution permissions set on the file.
Here are a few steps to resolve this:
1. Make the Python Script Executable
You need to make sure that the Python script has the executable permission set. You can do this using the chmod command:
chmod +x hello-world.py
This command adds the executable permission to the file, allowing it to be run directly from the command line.
2. Run the Script with Python Explicitly
Even with executable permissions, you might want to run the script explicitly with Python to ensure it uses the correct interpreter:
python hello-world.py
or if you are using Python 3 explicitly (which is recommended):
python3 hello-world.py
3. Check the Shebang Line
Make sure your Python script starts with a proper shebang line. This line tells the system what interpreter to use when the script is run as an executable. The shebang line should look like this at the very top of your hello-world.py:
#!/usr/bin/env python3
This shebang ensures that the script uses the Python interpreter that the environment finds first in the current PATH, which is typically the correct setup if you’ve activated a virtual environment or configured your system’s PATH appropriately.
4. Verify the Script Location and Python Path
Ensure that you are running the script from its directory or provide the full path to the Python interpreter. If there’s any confusion about paths, running the script with an explicit call to python3 can help avoid issues.
After making these changes, try running the script again either directly:
./hello-world.py
or with Python explicitly:
python3 hello-world.py
This should resolve the “permission denied” error, allowing your script to execute correctly. If you continue to experience issues, make sure that the user account you are using has the necessary permissions to access and execute files in the script’s directory.
Adrachin:
It works with python3
LiquidGPT:
Great to hear it works when you run the script with python3 explicitly! This approach is a reliable way to ensure that your Python scripts are executed with the correct version of Python, especially if you work in environments where multiple versions are present.
Some Tips Moving Forward:
-
Use the Shebang Line: To make execution simpler, you can add the shebang line to the top of your Python scripts:
#!/usr/bin/env python3This line tells the system to use the Python 3 interpreter from your environment’s path. After adding this line, make sure you set the script as executable (
chmod +x hello-world.py). Then, you can run your script directly from the terminal:./hello-world.py -
Consistent Python Usage: When working on projects or scripts, always using
python3instead of justpythoncan help avoid ambiguity between Python 2 and Python 3, especially on systems where both versions are installed. -
Virtual Environments: If you’re not already doing so, using a virtual environment for each project can help manage dependencies more effectively and ensure that projects remain isolated from each other. This can prevent version conflicts and make your projects more portable.
-
Permissions Management: If you frequently encounter permission issues with new scripts, consider setting your text editor or IDE to automatically set executable permissions on Python scripts when they’re created, or regularly use
chmod +xon your scripts after creation. -
Automation and Testing: As your scripts and projects grow, consider adding automation tools like
makeor scripting your setup and execution processes in shell scripts, which can also include permission settings as part of the setup.
By integrating these practices into your workflow, you can streamline your development process and reduce the likelihood of encountering issues with script execution. If you have any more questions or need further assistance with your Python development setup, feel free to ask!
Adrachin:
Great. this works…. (;
LiquidGPT:
Awesome, I’m glad to hear that everything is working smoothly now! If you have any more questions in the future, whether they’re about Python programming, setting up your environment, or anything else, don’t hesitate to reach out. Happy coding! 😊
Adrachin:
Let’s go back to the setup of visual Studio addition.
LiquidGPT:
Certainly! Let’s focus on further enhancing your Visual Studio Code (VS Code) setup to make it an even more powerful tool for your development work, especially with Python. Here’s a step-by-step guide on setting up additional features and functionalities in VS Code that can improve your productivity and coding experience:
1. Additional Useful Extensions
Aside from the Python extension, here are a few more VS Code extensions that can be incredibly beneficial:
- Jupyter: If you are working with data science projects, this extension allows you to directly edit and run Jupyter notebooks in VS Code.
- GitLens: Supercharges the built-in Git capabilities in VS Code, providing an enhanced Git interface to navigate and understand code bases better.
- Docker: Simplifies working with Docker; manage containers and Dockerfiles directly from VS Code.
- Remote - SSH: Allows you to connect to a remote server via SSH directly from VS Code, edit files, and run commands.
- Code Spell Checker: Helps catch common spelling errors, which can be a lifesaver in comments and documentation.
2. Customize Settings for Python Development
Customizing VS Code settings can greatly enhance your Python development experience:
-
Format on Save: Automatically formats your Python code whenever you save a file using tools like Black or autopep8.
- Open settings (
Cmd + ,), search for “Editor: Format On Save”, and check the box.
- Open settings (
-
Linter Configuration: Ensure Pylint or another linter is active to help maintain code quality.
- Open Command Palette (
Cmd + Shift + P), search for “Python: Select Linter”, and choose Pylint.
- Open Command Palette (
-
Code Completion: Leverage the Python extension for better code completion and IntelliSense.
- It’s typically enabled by default, but you can tweak settings for more aggressive suggestions if needed.
3. Debugging Setup
Setting up debugging in VS Code can drastically reduce your development time by allowing you to step through your code, inspect variables, and manage breakpoints efficiently:
-
Configure Launch Settings: Go to the Run panel (
Ctrl + Shift + D), and click “create a launch.json file”, then select Python. The generatedlaunch.jsonfile can be customized for different Python applications (like Django, Flask). -
Use the Interactive Debugger: Place breakpoints, watch variables, and evaluate expressions in real-time.
4. Workspace Configuration
Organize your projects by using workspaces in VS Code. Workspaces allow you to save a collection of folders and settings in a specific configuration:
- Create a Workspace:
File > Save Workspace As…, which lets you quickly switch contexts if you work on multiple projects.
5. Keyboard Shortcuts and Snippets
Customize keyboard shortcuts and snippets to speed up your coding:
- Modify Keyboard Shortcuts:
Code > Preferences > Keyboard Shortcuts. - Create Custom Snippets:
Code > Preferences > User Snippets, then select Python. Here, you can define reusable code snippets.
6. Themes and Accessibility
Customize the look and feel of your IDE to make it comfortable for long coding sessions:
- Install Themes: Browse and install themes from the Extensions view (
Cmd + Shift + X), enhancing visual comfort and accessibility.
Final Tips
- Regularly Update: Keep VS Code and its extensions updated to benefit from the latest features, performance improvements, and bug fixes.
- Explore Marketplace: Regularly explore the VS Code Marketplace to find new and updated extensions that can enhance your coding experience.
If you have any specific features or tools you need help configuring in VS Code, feel free to ask!
Adrachin:
Repeat the setup of linter
LiquidGPT:
Setting up a linter in Visual Studio Code (VS Code) for Python involves several steps, primarily focused on choosing a linter, installing it, and then configuring VS Code to use it. Linters help improve your code by catching errors and providing style enforcement based on common conventions. Here’s how to set up a linter in VS Code for Python:
1. Choose a Linter
Popular Python linters include Pylint, flake8, and mypy. Pylint is widely used for its comprehensive checks, including coding standards, error detection, and refactoring help. Here’s how you can set it up:
2. Install Pylint
If you haven’t installed Pylint yet, you can do so using pip. It’s best to install it within a virtual environment specific to your project to keep your setup clean. Activate your virtual environment and install Pylint:
pip install pylint
3. Configure VS Code to Use Pylint
Once Pylint is installed, you can configure VS Code to use it:
- Open VS Code.
- Open the Command Palette (
Cmd + Shift + Pon macOS orCtrl + Shift + Pon Windows/Linux). - Select Linter: Type
Python: Select Linterand then hit Enter. You should see a list of available linters. - Choose Pylint: Click on
Pylintfrom the list to set it as your default linter.
4. Enable Linting in VS Code Settings
Make sure linting is enabled in VS Code settings:
- Open Settings: Use
Cmd + ,(on macOS) orCtrl + ,(on Windows/Linux). - Search for Python Linting: Type “linting” in the search bar.
- Ensure Linting is Enabled: Check that
Python > Linting: Enabledis turned on. - Configure Linting Behavior: You can also configure when the linter runs (on save, on type, etc.) and what to lint by adjusting settings like
Python > Linting: Lint On SaveandPython > Linting: Lint On Type.
5. Adjust Pylint Settings (Optional)
If you want to customize the way Pylint works (e.g., ignoring certain warnings, setting up a configuration file), you can create a .pylintrc file in your project directory:
- Generate Default Pylint Configuration:
pylint --generate-rcfile > .pylintrc - Edit
.pylintrc: Open this file in VS Code and adjust the settings according to your preferences. For example, you can disable certain messages or modify the scoring thresholds.
6. Test the Linter
Create or open a Python file and write some Python code. Try introducing a deliberate syntax error or style issue (like missing docstrings). Save the file, and you should see Pylint highlighting the issues in the “Problems” pane of VS Code.
By following these steps, you set up Pylint in VS Code, enhancing your Python coding experience by ensuring your code adheres to quality standards and common practices. If you encounter any issues or have specific needs regarding the linting setup, let me know, and I can provide further assistance!
Adrachin:
If I understood it correctly pip is a package manager. wouldn’t it make sense to use home-brew instead?
LiquidGPT:
Yes, pip is a package manager specifically designed for installing and managing Python packages. Homebrew, on the other hand, is a package manager for macOS that manages not just Python packages but a wide variety of software. Understanding when to use each can help streamline your development process.
When to Use pip
- Python Packages:
pipis used for installing Python libraries and tools that are registered on the Python Package Index (PyPI). It is the standard package manager for Python and allows you to install, update, and manage Python packages. - Python Environment Specific:
pipinstalls Python packages into the currently active Python environment. This is particularly useful when working with virtual environments because it allows you to manage dependencies on a per-project basis without affecting the global Python installation.
When to Use Homebrew
- System-Wide Software: Homebrew is used to install and manage applications and utilities that are not necessarily Python-specific, such as databases (PostgreSQL, MySQL), tools (git, wget), and even programming languages like Ruby or Node.js.
- MacOS Integration: Homebrew installs software system-wide (by default under
/usr/localfor Intel chips, and/opt/homebrewfor Apple Silicon), making them available to all users on the device. It’s particularly useful for installing command-line tools and services that you want to be globally accessible. - Non-Python Software: While you can use Homebrew to install Python itself or certain widely-used Python tools (like
ansibleorawscli), for most Python libraries and modules, it’s best to stick withpipto ensure compatibility and proper integration with your Python environments.
Example Scenario
Imagine you’re setting up a web development environment on a Mac:
- You might use Homebrew to install Python, PostgreSQL, Redis, and Node.js.
- You would then use pip to install Python-specific libraries like Django, Flask, or Pandas within a virtual environment tailored for a specific project.
Conclusion
In summary, use Homebrew for managing system-wide applications and general tools, while pip should be used for managing Python-specific packages within specific Python environments. This approach leverages the strengths of both package managers and ensures a clean, efficient, and well-organized development environment.
If you need more detailed guidance on using either Homebrew or pip for specific types of installations or configurations, feel free to ask!
Adrachin:
one more error:
/Users/thomas
➜ ~ pip install pylint
zsh: command not found: pip
➜ ~
LiquidGPT:
The error message “zsh: command not found: pip” indicates that the pip command is not found in your system’s PATH. This can occur for various reasons, such as if Python was installed without pip or if the directory containing pip is not included in your PATH.
Here’s how you can address this issue to get pip working correctly:
Step 1: Check if Python and Pip Are Installed
Verify if Python is installed and attempt to check pip directly via Python:
python --version # or python3 --version
python -m pip --version # or python3 -m pip --version
If python -m pip works, then pip is installed, but it’s not linked correctly in your PATH.
Step 2: Install Pip (if necessary)
If pip is not installed, you can install it by using the following command:
python -m ensurepip # or python3 -m ensurepip
Step 3: Add Pip to Your PATH
If pip is installed but not found, it might not be in your PATH. First, find where pip is installed:
python -m site --user-base # or python3 -m site --user-base
This command will show the base directory for Python user installations. pip typically resides in the bin directory inside this base directory. Add this path to your PATH variable in your .zshrc file:
echo 'export PATH="$HOME/Library/Python/3.x/bin:$PATH"' >> ~/.zshrc
source ~/.zshrc
Replace 3.x with your Python version.
Step 4: Verify Pip
After updating your PATH, check if pip can now be recognized:
pip --version # or pip3 --version
Step 5: Install Using Homebrew (Alternative)
If you continue to have trouble with pip, another approach is to install Python through Homebrew, which automatically includes pip:
brew install python
This command installs Python and pip, placing them in /usr/local/bin (Intel) or /opt/homebrew/bin (Apple Silicon), which should already be in your PATH if Homebrew is configured correctly.
Step 6: Recheck Your Environment
Make sure your shell picks up the changes:
source ~/.zshrc
Then try checking pip again. If there are still issues, ensure your terminal restarts, or verify your .zshrc path entries.
By following these steps, you should be able to resolve the “command not found: pip” error and get pip functioning correctly on your system. If you encounter further complications, feel free to ask for more detailed help!
Adrachin:
Please use python3 in all code examples in the future of this conversation. Python does not exist in this installation python3 is correct. Same for pip. Its pip3
LiquidGPT:
Understood! Going forward, I’ll use python3 and pip3 in all code examples to match your system setup and ensure compatibility. Let’s proceed with that in mind.
If you have any specific tasks or questions related to using python3 and pip3 or anything else, please let me know how I can assist you further!
Adrachin:
python3 —version
Python 3.12.3
➜ ~ python3 -m pip —version
pip 24.0 from /opt/homebrew/lib/python3.12/site-packages/pip (python 3.12)
LiquidGPT:
Great, it looks like both python3 and pip3 are installed correctly on your system, and you’re running Python 3.12.3 with pip version 24.0. This setup confirms that pip3 is functioning as expected and is associated with the correct Python version.
With this setup, you can proceed to manage Python packages for your projects using pip3. Here’s a quick guide on using pip3 effectively:
Installing Packages with Pip3
To install a Python package using pip3, you can use the following command:
pip3 install package_name
Replace package_name with the name of the package you want to install. For example, to install the Requests library, you would use:
pip3 install requests
Upgrading Packages
To upgrade an existing package, use the -U option:
pip3 install -U package_name
Uninstalling Packages
If you need to remove a package, you can do so with the following command:
pip3 uninstall package_name
Listing Installed Packages
To list all the packages installed in the current environment with pip3:
pip3 list
Checking for Package Updates
To find out which packages are outdated and can be updated:
pip3 list --outdated
Using Requirements Files
For managing multiple dependencies, it’s common to use a requirements.txt file:
- Create a
requirements.txtFile: List all your project’s dependencies and their versions in this file. - Install from
requirements.txt:pip3 install -r requirements.txt
Virtual Environments
Since you’re using Python directly installed via Homebrew, consider using virtual environments for project-specific dependencies to avoid conflicts:
- Creating a Virtual Environment:
python3 -m venv env_name - Activating the Virtual Environment:
- On macOS/Linux:
source env_name/bin/activate
- On macOS/Linux:
- Deactivate the Virtual Environment:
deactivate
Once a virtual environment is activated, pip3 will install packages into that environment rather than globally. This is crucial for maintaining separate dependencies for different projects.
If you have any more questions or need further assistance with using python3 or pip3, just let me know!
Adrachin:
There is still a conflict using pip3:
pip3 install pylint
error: externally-managed-environment
× This environment is externally managed
╰─> To install Python packages system-wide, try brew install
xyz, where xyz is the package you are trying to
install.
If you wish to install a Python library that isn't in Homebrew,
use a virtual environment:
python3 -m venv path/to/venv
source path/to/venv/bin/activate
python3 -m pip install xyz
If you wish to install a Python application that isn't in Homebrew,
it may be easiest to use 'pipx install xyz', which will manage a
virtual environment for you. You can install pipx with
brew install pipx
You may restore the old behavior of pip by passing
the '--break-system-packages' flag to pip, or by adding
'break-system-packages = true' to your pip.conf file. The latter
will permanently disable this error.
If you disable this error, we STRONGLY recommend that you additionally
pass the '--user' flag to pip, or set 'user = true' in your pip.conf
file. Failure to do this can result in a broken Homebrew installation.
Read more about this behavior here: <https://peps.python.org/pep-0668/>
note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing —break-system-packages.
hint: See PEP 668 for the detailed specification.
LiquidGPT:
The error message you are encountering is due to Homebrew’s recent implementation aimed at safeguarding the system Python environment from conflicts and potential issues that might arise from mixing system-wide package installations with those managed by Homebrew. This change adheres to PEP 668, which provides guidelines for safely managing Python installations and environments.
Here are the recommended approaches to resolve this issue based on your specific needs:
1. Use a Virtual Environment
For most Python development work, especially when managing libraries specific to a project, using a virtual environment is the recommended approach. This keeps your project’s dependencies isolated from the global Python installation, avoiding conflicts and maintaining cleaner system-wide settings.
Creating and Activating a Virtual Environment:
python3 -m venv my_project_env
source my_project_env/bin/activate
Once the virtual environment is activated, you can safely use pip3 to install packages without affecting the global environment:
pip3 install pylint
2. Install Python Applications with pipx
For Python applications that you intend to run globally but wish to keep isolated (like tools and utilities), pipx is an excellent tool. It automatically manages virtual environments for each installed package.
Installing pipx:
brew install pipx
pipx ensurepath
Using pipx to Install Applications:
pipx install pylint
This installs pylint in an isolated environment, making it globally accessible without impacting other Python installations or dependencies.
3. Configuring pip to Allow System-Wide Installations
If you absolutely need to install Python packages system-wide (which is not recommended due to potential conflicts with Homebrew-managed Python), you can configure pip to allow this. Use the --user flag to install packages to the user’s directory, which avoids affecting the system-wide Python environment:
pip3 install --user pylint
Alternatively, you can add the following to your pip.conf file to permanently allow system-wide installations:
[global]
break-system-packages = true
user = true
This file usually resides in ~/.config/pip/pip.conf. If it doesn’t exist, you can create it. This configuration tells pip to bypass the externally-managed environment safeguard while still keeping the installations to the user level.
Choosing the Best Approach
- Development Projects: Use virtual environments for each project to manage dependencies cleanly and avoid conflicts.
- Global Tools: Use
pipxto install and manage Python-based tools and applications globally without affecting other environments. - System-Wide Installation: Use the
--useroption withpip3if necessary, understanding the potential risks.
By following these guidelines, you can effectively manage your Python installations and dependencies on macOS while adhering to best practices and avoiding potential issues with Homebrew or your system environment.
Adrachin:
pipx is fine. I only want the packages installed globally useful for Visual Studio. everything else for specific projects will go into a virtual environment.
completions have been installed to:
/opt/homebrew/share/zsh/site-functions
==> Summary
🍺 /opt/homebrew/Cellar/pipx/1.5.0: 149 files, 1021.8KB
==> Running brew cleanup pipx…
Disable this behaviour by setting HOMEBREW_NO_INSTALL_CLEANUP.
Hide these hints with HOMEBREW_NO_ENV_HINTS (see man brew).
➜ ~ pipx ensurepath
Success! Added /Users/thomas/.local/bin to the PATH environment variable.
Consider adding shell completions for pipx. Run ‘pipx completions’ for
instructions.
LiquidGPT:
Great, it looks like you’ve successfully installed pipx and configured your PATH to include the directory where pipx installs executable scripts. This setup will help you manage Python-based tools globally without affecting your system Python environment or project-specific virtual environments. Here’s how to proceed with using pipx effectively and setting up shell completions:
Using Pipx for Global Python Applications
With pipx, you can install Python applications in isolated environments but make them globally available on your system. For example, to install a tool like black (a Python code formatter) that you might want to use across various projects, you can run:
pipx install black
This command will install black in its own virtual environment, but the tool will be accessible from anywhere on your system.
Managing Installed Applications with Pipx
-
List Installed Applications: To see what Python applications are currently installed with
pipx:pipx list -
Upgrade Applications: To upgrade an installed application to the latest version:
pipx upgrade black -
Uninstall Applications: To remove an installed application:
pipx uninstall black -
Upgrade All Applications: To upgrade all applications installed via
pipx:pipx upgrade-all
Setting Up Shell Completions for Pipx
Shell completions enable your shell to provide autocomplete suggestions for pipx commands, which can speed up your workflow and reduce typing errors. Since you’re using Zsh, you can add pipx completions to your shell by adding the following line to your .zshrc file:
source /opt/homebrew/share/zsh/site-functions
This path may vary slightly depending on your specific Homebrew installation, so verify that the completions file (_pipx) is indeed located in /opt/homebrew/share/zsh/site-functions. If it’s there, adding the source line will activate completions.
-
Edit Your
.zshrc:nano ~/.zshrc -
Add the Source Line for Completions (if it’s not automatically added by
pipx ensurepath):- Look for lines setting up
PATHand other configurations, and add:source /opt/homebrew/share/zsh/site-functions
- Look for lines setting up
-
Reload Your Shell Configuration:
source ~/.zshrc -
Verify Completions:
- Type
pipxin your terminal and pressTabto see if completions suggestions appear.
- Type
By following these steps, you’ll have a robust setup for managing global Python tools with pipx, while keeping your project-specific environments clean with virtual environments. If you need further assistance or have any more questions about setting up your development environment, feel free to ask!
Adrachin:
Fine. But still an issue in Visual Studio:
Open Command Palette (Cmd + Shift + P), search for “Python: Select Linter”, and choose Pylint.
Only interpreter shows up when using python: select
LiquidGPT:
If you’re encountering issues where only the “Python: Select Interpreter” option appears when you type “Python: Select Linter” in the Command Palette of Visual Studio Code (VS Code), it could be due to a few potential reasons. Let’s go through some troubleshooting steps to ensure that the Python extension is set up correctly and can recognize Pylint as an available linter:
Step 1: Confirm Python Extension Installation
Ensure the Python extension by Microsoft is installed in VS Code:
- Open Extensions: Use the shortcut
Cmd + Shift + Xor click on the Extensions icon on the sidebar. - Search for “Python”: Look for the official Python extension by Microsoft and ensure it is installed. If not, install it.
Step 2: Install Pylint in Your Environment
Make sure Pylint is installed in the Python environment you’re using in VS Code:
- Open the Integrated Terminal: Use the shortcut `Ctrl + “ (backtick).
- Activate Your Python Environment (if using a virtual environment). If you’re not using a virtual environment, skip to the pip install command.
- Install Pylint:
pip3 install pylint
Step 3: Select the Correct Python Interpreter
Ensure that VS Code is using the Python interpreter where Pylint is installed:
- Open Command Palette:
Cmd + Shift + P. - Select Interpreter: Type “Python: Select Interpreter” and choose the interpreter that corresponds to your environment (where Pylint is installed).
Step 4: Check if the Linter is Recognized
After setting the correct interpreter and ensuring Pylint is installed:
- Open Command Palette:
Cmd + Shift + P. - Search for Linter: Type “Python: Select Linter” again to see if Pylint now appears as an option.
Step 5: Ensure Python and Extensions are Updated
Sometimes, out-of-date extensions or Python versions can cause issues:
- Update Python Extension: Go to the Extensions view, find the Python extension, and click “Update” if available.
- Update VS Code: Ensure that VS Code itself is up to date by going to
Code > Check for Updates...on macOS.
Step 6: Check VS Code Settings
Verify that linting is enabled in VS Code:
- Open Settings:
Cmd + ,. - Search for “Python Linting”: Make sure
Python > Linting: Enabledis checked.
Step 7: Reload VS Code
Sometimes, simply reloading the editor can resolve unexpected issues:
- Reload Window:
Cmd + Shift + Pand type “Developer: Reload Window”.
If after following these steps, the “Python: Select Linter” still does not show up, there may be an issue with how VS Code or the Python extension is configured or interacting with your system. Double-check the Python extension’s output log (in the Output pane, select “Python” from the dropdown) for any errors or messages that might give more insight into what’s going wrong. If the problem persists, consider reinstalling the Python extension or even VS Code itself.
Adrachin:
Non pip3 please for global python packages. there is a conflict with homebrew and this is the reason I installed pipx. For the future, if I want to install some python related components, I will mention it. All the things for “tuning” Visual Studio belong into that categories. I want to use Visual Studio globally as an editor equipped with all the goody making coders live easy. Ok?
LiquidGPT:
Understood! Given your setup and preference to avoid conflicts with Homebrew, using pipx for globally available Python tools makes a lot of sense. This approach will allow you to keep your global environment clean and manage Python-based utilities effectively.
Installing Python Tools Globally with Pipx
For enhancing Visual Studio Code and other coding tools with Python utilities that need to be available globally, you can use pipx. Here’s how to install Python tools globally using pipx, which will help avoid conflicts with Homebrew-managed environments:
Example: Installing Pylint Globally with Pipx
Since Pylint is a popular linter for Python and useful in a global context to integrate with Visual Studio Code, you can install it via pipx:
- Install Pylint Using Pipx:
pipx install pylint
This command installs Pylint in its own isolated environment but makes it available globally. This way, it can be configured to work with Visual Studio Code across all your projects.
Configure Visual Studio Code to Use Globally Installed Pylint
To ensure Visual Studio Code uses the Pylint installed via pipx:
- Open Visual Studio Code.
- Open the Command Palette (
Cmd + Shift + P). - Select the Python Interpreter: Choose “Python: Select Interpreter” and select the global interpreter or the one you use for most projects.
- Ensure Pylint is Recognized: Even though Pylint is installed via
pipx, VS Code should recognize and use it if your environment is set correctly. You might need to specify the path manually in VS Code settings if it doesn’t pick it up automatically:- Go to Settings (
Cmd + ,), search forpython.linting.pylintPath, and set it to the path wherepipxinstalls binaries (~/.local/bin/pylint).
- Go to Settings (
General Workflow with Pipx
- Installing Other Tools: Use
pipx install <package>for any other tools you need globally. - Upgrading Tools:
pipx upgrade <package>. - List Installed Tools:
pipx listto see what’s installed withpipx.
Future Requests
For future needs related to installing Python components or any adjustments in Visual Studio Code, mentioning that you prefer installations be handled globally with pipx will guide the advice provided. This strategy will keep your development setup efficient and aligned with your system configuration preferences.
If you have any more questions or specific tools you want to install and configure using pipx, or need further customization tips for Visual Studio Code, feel free to ask!
Adrachin:
Can I check is pylon is already global accessible?
LiquidGPT:
To check if pylint is globally accessible on your system, particularly when installed via pipx, you can perform a few checks in your terminal. These checks will verify whether pylint is correctly installed and reachable through your command line environment.
Step 1: Check pylint Installation with pipx
First, you can list all the packages installed with pipx to see if pylint is among them:
pipx list
This command will show all Python applications installed with pipx, including their version and the path to their binaries.
Step 2: Verify pylint Executable Path
If pylint is installed, you can check its executable path to confirm it’s in a location that’s globally accessible:
which pylint
This command will output the path from which pylint is being executed. If pylint was installed via pipx, it should typically show a path like /Users/yourusername/.local/bin/pylint.
Step 3: Test pylint
To further verify that pylint is accessible and functioning correctly, you can run a simple command that invokes pylint:
pylint --version
This command should display the version of pylint along with some configuration details, confirming that it is operational and reachable.
Ensuring Global Accessibility
If pylint does not appear to be installed or isn’t found with the which command:
-
Ensure the Correct Path is in Your
$PATHEnvironment Variable: The directory wherepipxinstalls binaries (~/.local/bin) should be included in your system’s$PATH. You can check your$PATHby running:echo $PATH -
Add
~/.local/binto Your$PATH:
If it’s not already included, you can add this directory to your$PATHby modifying your shell configuration file (e.g.,.bashrc,.zshrc):echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.zshrc source ~/.zshrcReplace
.zshrcwith.bashrcor your shell’s configuration file as appropriate.
By following these steps, you can confirm whether pylint is globally accessible on your system and ready for use with any Python projects, ensuring that it integrates seamlessly with development tools like Visual Studio Code. If pylint still doesn’t appear or work as expected, there may be a need to reinstall it using pipx or investigate further into your environment setup.
Adrachin:
pipx install pylint
installed package pylint 3.1.0, installed using Python 3.12.3
These apps are now globally available
- pylint
- pylint-config
- pyreverse
- symilar
done! ✨ 🌟 ✨
LiquidGPT:
Fantastic! You’ve successfully installed pylint and its associated tools (pylint-config, pyreverse, symilar) globally using pipx. They are now available for use across all your projects without affecting individual project environments. This setup ensures that pylint can be used to lint your Python code from any location on your system.
Next Steps with Globally Installed Pylint
Now that pylint is globally available, here are a few steps to integrate and use it effectively:
1. Testing Pylint
To confirm that everything is set up correctly, you can run pylint on a Python file to see if it lints as expected:
pylint path/to/your/file.py
This command will analyze file.py and report any issues or suggestions based on pylint’s configuration.
2. Integrate with Visual Studio Code
To ensure Visual Studio Code uses the globally installed pylint, follow these steps:
- Open Visual Studio Code.
- Go to Settings (
Cmd + ,on macOS orCtrl + ,on Windows/Linux). - Search for
python.linting.pylintPathand set it to the path output bywhich pylint, typically/Users/yourusername/.local/bin/pylint. - Enable Pylint in the settings by ensuring
Python > Linting: Pylint Enabledis checked.
3. Configure Pylint
If you want to customize pylint rules or behavior, you can create a .pylintrc file in your home directory or in specific project directories:
- Generate a default configuration file:
pylint --generate-rcfile > ~/.pylintrc - Edit
.pylintrcto modify the linting rules according to your coding standards and preferences.
4. Using Pylint with Continuous Integration
If you are using continuous integration tools, you can integrate pylint into your CI pipelines to automatically check the code quality of commits and merges.
- Add a linting step in your CI configuration that runs:
pylint your/project/directory/
5. Regular Updates
Keep pylint and other pipx-installed tools updated with:
pipx upgrade pylint
This ensures you benefit from the latest checks, features, and improvements.
Conclusion
By installing pylint globally via pipx, you’ve equipped your development environment with a powerful tool for maintaining high code quality without complicating your individual project setups. If you have any further questions about using pylint or need more help configuring your development tools, feel free to ask!
Adrachin:
pylint hello-world.py
***** Module hello-world
hello-world.py:1:0: C0114: Missing module docstring (missing-module-docstring)
hello-world.py:1:0: C0103: Module name “hello-world” doesn’t conform to snake_case naming style (invalid-name)