Manage Python versions

This project doesn't maintain multiple Python installations for you; you can use mise, pyenv, or asdf to do so.

misepyenvasdf

% mise install python@3.7.9

% pyenv install 3.7.9

% asdf install python 3.7.9

Install a tool with a specific Python version

misepyenvasdf

% mise shell python@3.7.9
% pipz install httpie

% pyenv shell 3.7.9
% pipz install httpie

% asdf shell python 3.7.9
% pipz install httpie

Create a venv with a specific Python version

misepyenvasdf

% mise shell python@3.7.9
% envin  # or: activate

% pyenv shell 3.7.9
% envin  # or: activate

% asdf shell python 3.7.9
% envin  # or: activate

Once the venv is created this way, envin and activate will by default use that same Python version, regardless of the current shell's path.

Keep multiple Python version venvs available for a single project

misepyenvasdf

% mise shell python@3.7.9
% envin --py current  # or: activate --py current

% pyenv shell 3.7.9
% envin --py current  # or: activate --py current

% asdf shell python 3.7.9
% envin --py current  # or: activate --py current

Instead of the venv path being for example ~/.local/share/venvs/646…/venv, it will be ~/.local/share/venvs/646…/venv-python-3.7.9.