doomemacs/modules/lang/python/README.org

:lang python

• Description
  • Maintainers
  • Module flags
  • Packages
  • Hacks
  • Changelog
• Installation
  • Language Server Protocol Support
• Usage
  • Keybindings
• Configuration
• Troubleshooting
• Frequently asked questions
• Appendix

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Description   unfold

This module adds Python support to Doom Emacs.

• Syntax checking (flycheck)
• Snippets
• Run tests (nose, pytest)
• Auto-format (with black, requires :editor format)
• LSP integration (mspyls, pyls, or pyright)

Maintainers

• @hlissner

Become a maintainer?

Module flags

+conda

Enable python virtual environment support via Conda.

+cython

Enable support for Cython files support.

+lsp

Enable LSP support for python-mode. Requires :tools lsp and a langserver (supports mspyls, pyls, and pyright).

+poetry

Enable Python packaging, dependency management, and virtual environment support via Poetry.

+pyenv

Enable Python virtual environment support via pyenv

+pyright

Use the pyright LSP server instead of mspyls or pyls (requires +lsp).

Packages

• anaconda-mode
• conda
• nose
• pipenv
• pip-requirements
• poetry if +poetry
• pyenv
• pyimport
• py-isort
• python-pytest

• if +cython

  • cython-mode
  • flycheck-cython if :checkers syntax

• if +lsp

  • if +pyright

    • lsp-pyright

  • else

    • lsp-python-ms

Hacks

• anaconda-mode is configured to activate when lsp-mode (or eglot) don't – or fail to.

TODO Changelog

This module does not have a changelog yet.

Installation

Enable this module in your doom! block.

This module has no hard requirements, but softly depends on:

• For this module's supported test runners:

  • $ pip install pytest
  • $ pip install nose
• The :editor format module uses Black for python files: $ pip install black
• pyimport requires Python's module pyflakes: $ pip install pyflakes
• py-isort requires isort to be installed: pip install isort

• Python virtual environments install instructions at:

  • pyenv
  • Conda
  • Poetry
  • pipenv
• cython requires Cython

Language Server Protocol Support

For LSP support the :tools lsp module must be enabled, along with this module's +lsp flag. By default, it supports mspyls and pyls, in that order. With the +pyright flag, it will try Pyright first.

Each of these servers must be installed on your system via your OS package manager or manually:

• pyls can be installed with $ pip install python-language-server[all].
• mspyls can be installed by typing M-x lsp-install-server RET mspyls.
• pyright can be installed with $ pip install pyright or $ npm i -g pyright.

TODO Usage

🔨 This module's usage documentation is incomplete. Complete it?

This module supports LSP. It requires installation of Python Language Server, Microsoft Language Server, or pyright, see LSP Support.

To enable support for auto-formatting with black enable :editor format.

Keybindings

Binding	Description
<localleader> c c	Compile Cython buffer
<localleader> i i	Insert mising imports
<localleader> i r	Remove unused imports
<localleader> i s	Sort imports
<localleader> i o	Optimize imports
<localleader> t r	nosetests-again
<localleader> t a	nosetests-all
<localleader> t s	nosetests-one
<localleader> t v	nosetests-module
<localleader> t A	nosetests-pdb-all
<localleader> t O	nosetests-pdb-one
<localleader> t V	nosetests-pdb-module
<localleader> t f	python-pytest-file
<localleader> t k	python-pytest-file-dwim
<localleader> t t	python-pytest-function
<localleader> t m	python-pytest-function-dwim
<localleader> t r	python-pytest-repeat
<localleader> t p	python-pytest-popup
<localleader> g d	anaconda-mode-find-definitions
<localleader> g h	anaconda-mode-show-doc
<localleader> g a	anaconda-mode-find-assignments
<localleader> g f	anaconda-mode-find-file
<localleader> g u	anaconda-mode-find-references

TODO Configuration

🔨 This module's configuration documentation is incomplete. Complete it?

This module has the following variables to set extra arguments to ipython and jupyter shells:

;; in $DOOMDIR/config.el
(setq +python-ipython-repl-args '("-i" "--simple-prompt" "--no-color-info"))
(setq +python-jupyter-repl-args '("--simple-prompt"))

Troubleshooting

There are no known problems with this module. Report one?

Frequently asked questions

This module has no FAQs yet. Ask one?

TODO Appendix

🔨 This module has no appendix yet. Write one?