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which python trick or hack you know that you would want to share? (lemmy.ca)

submitted 5 months ago by [email protected] to c/[email protected]

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[–] [email protected] 5 points 5 months ago (4 children)

Can I request a hack? How do I handle several different versions of Python installed, which one is used for pip stuff, and how sudo/running as services changes all of this.

[–] [email protected] 2 points 5 months ago

https://github.com/jdx/mise

[–] [email protected] 9 points 5 months ago* (last edited 5 months ago)

There are like 10,000 different solutions, but I would just recommend using what's built in to python

If you have multiple versions installed you should be able to call python3.12 to use 3.12, etc

Best practice is to use a different virtual environment for every project, which is basically a copy of an existing installed python version with its own packages folder. Calling pip with the system python installs it for the entire OS. Calling it with sudo puts the packages in a separate package directory reserved for the operating system and can create conflicts and break stuff (as far as I remember, this could have changed in recent versions)

Make a virtual environment with python3.13 -m venv venv the 2nd one is the directory name. Instead of calling the system python, call the executable at venv/bin/python3

If you do source venv/bin/activate it will temporarily replace all your bash commands to point to the executables in your venv instead of the system python install (for pip, etc). deactivate to revert. IDEs should detect the virtual environment in your project folder and automatically activate it

[–] [email protected] 2 points 5 months ago

I started using hatch lately and really like how I can manage everything from the pyproject.toml file

https://github.com/pypa/hatch

[–] [email protected] 12 points 5 months ago

You can use pyenv. it will handle everything. https://github.com/pyenv/pyenv