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Python in Doom Emacs

Config

  • Don’t forget to uncomment python in init.el
    • Change enable lsp under :tools and change python to (python +lsp) if you’re planning to use a Language Protocol Server using lsp-mode.
    • Enable (company +childframe) under :complection as well.

First Steps

  • Run doom doctor and look inside the python section to see what executables you lack and install them.

Basics

  • First see the LSP section of the main file
  • M-x run-python to open a python shell.
    • python-shell-send-region or C-c C-r to send a selected region to the shell.
    • python-shell-send-file or C-c C-l to send another file to the shell.
    • python-shell-send-buffer or C-c C-c to send a selected region to the shell.

Virtual Environments

General

  • Once a virtual environment is activated, vterm will open a terminal with that certain environment activated.

Virtualenv or Venv

  • pyvenv-workon to activate a virtualenv defined in ~/.virtualenvs.
    • Install virtualenv using pip install --user --upgrade virtualenv
    • After opening a python file, pyvenv-create to create a venv.
  • pyvenv-activate to activate a venv from a certain path.
    • Use python -m venv PATH to create a venv in a directory.
  • pyvenv-deactivate to deactivate a venv or a virtualenv.

Pyenv

Flycheck

  • See inside the variable flycheck-checkers to see from which software check your code. For python the list includes python-flake8, python-pylint, python-pycompile, python-pyright, and python-mypy.

Sources