python.md

Use custom Python virtual environment

In order to not use System Python installation, we can use custom virtual environment tools (e.g. virtualenv, pyenv, ...) that copy and isolate System Python installation into project folder so that installation of custom packages are done per project/repository basis.

• Install virtualenv (brew install virtualenv)

  cd some-python-gitlab-repo
  
  # create virtual environment
  virtualenv --python=python3.8.7 venv
  
  # activate virtual environment (in terminal you should see (venv) indicator in path)
  source venv/bin/activate
  
  # ... now you can do stuff in your isolated python virtual environment ... 
  
  # deactivates virtual environment
  deactivate

• Install direnv

  • Append to ~.zshrc

    eval "$(direnv hook zsh)"

  • Create ~/.config/direnv/config.toml so that cd within defined prefix automatically loads .env file

    [whitelist]
    prefix = [ "/Users/<<lastf>>/Projects/gitlab/umusic" ]

    Replace <<lastf>> with UMG user.