doomemacs/modules/lang/python/README.org
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#+TITLE: :lang python
#+SUBTITLE: Beautiful is better than ugly
#+CREATED: June 15, 2015
#+SINCE: 0.7
* Description :unfold:
This module adds [[https://www.python.org/][Python]] support to Doom Emacs.
- Syntax checking ([[doom-package:][flycheck]])
- Snippets
- Run tests ([[doom-package:][nose]], [[doom-package:][pytest]])
- Auto-format (with ~black~, requires [[doom-module:][:editor format]])
- LSP integration (=mspyls=, =pyls=, or =pyright=)
** Maintainers
- [[doom-user:][@hlissner]]
[[doom-contrib-maintainer:][Become a maintainer?]]
** Module flags
- +conda ::
Enable python virtual environment support via [[https://conda.io/en/latest/][Conda]].
- +cython ::
Enable support for Cython files support.
- +lsp ::
Enable LSP support for ~python-mode~. Requires [[doom-module:][:tools lsp]] and a langserver
(supports mspyls, pyls, and pyright).
- +poetry ::
Enable Python packaging, dependency management, and virtual environment
support via [[https://python-poetry.org/][Poetry]].
- +pyenv ::
Enable Python virtual environment support via [[https://github.com/pyenv/pyenv][pyenv]]
- +pyright ::
Use the pyright LSP server instead of mspyls or pyls (requires [[doom-module:][+lsp]]).
** Packages
- [[doom-package:][anaconda-mode]]
- [[doom-package:][conda]]
- [[doom-package:][nose]]
- [[doom-package:][pipenv]]
- [[doom-package:][pip-requirements]]
- [[doom-package:][poetry]] if [[doom-module:][+poetry]]
- [[doom-package:][pyenv]]
- [[doom-package:][pyimport]]
- [[doom-package:][py-isort]]
- [[doom-package:][python-pytest]]
- if [[doom-module:][+cython]]
- [[doom-package:][cython-mode]]
- [[doom-package:][flycheck-cython]] if [[doom-module:][:checkers syntax]]
- if [[doom-module:][+lsp]]
- if [[doom-module:][+pyright]]
- [[doom-package:][lsp-pyright]]
- else
- [[doom-package:][lsp-python-ms]]
** Hacks
- [[doom-package:][anaconda-mode]] is configured to activate when [[doom-package:][lsp-mode]] (or [[doom-package:][eglot]]) don't -- or
fail to.
** TODO Changelog
# This section will be machine generated. Don't edit it by hand.
/This module does not have a changelog yet./
* Installation
[[id:01cffea4-3329-45e2-a892-95a384ab2338][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 [[doom-module:][:editor format]] module uses Black for python files: ~$ pip install black~
- [[doom-package:][pyimport]] requires Python's module ~pyflakes~: ~$ pip install pyflakes~
- [[doom-package:][py-isort]] requires [[https://github.com/timothycrosley/isort][isort]] to be installed: ~pip install isort~
- Python virtual environments install instructions at:
- [[https://github.com/pyenv/pyenv][pyenv]]
- [[https://conda.io/en/latest/][Conda]]
- [[https://python-poetry.org/][Poetry]]
- [[https://pipenv.readthedocs.io/en/latest/][pipenv]]
- ~cython~ requires [[https://cython.org/][Cython]]
** Language Server Protocol Support
For LSP support the [[doom-module:][:tools lsp]] module must be enabled, along with this module's
[[doom-module:][+lsp]] flag. By default, it supports [[doom-package:][mspyls]] and [[doom-package:][pyls]], in that order. With the
[[doom-module:][+pyright]] flag, it will try Pyright first.
Each of these servers must be installed on your system via your OS package
manager or manually:
- [[https://pypi.org/project/python-language-server/][*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
#+begin_quote
🔨 /This module's usage documentation is incomplete./ [[doom-contrib-module:][Complete it?]]
#+end_quote
This module supports LSP. It requires installation of [[https://pypi.org/project/python-language-server/][Python Language Server]],
[[https://github.com/Microsoft/python-language-server][Microsoft Language Server]], or [[https://github.com/microsoft/pyright][pyright]], see [[Language Server Protocol Support][LSP Support]].
To enable support for auto-formatting with black enable [[doom-module:][:editor format]].
** Keybindings
| Binding | Description |
|-------------------+----------------------------------|
| [[kbd:][<localleader> c c]] | ~Compile Cython buffer~ |
| [[kbd:][<localleader> i i]] | ~Insert mising imports~ |
| [[kbd:][<localleader> i r]] | ~Remove unused imports~ |
| [[kbd:][<localleader> i s]] | ~Sort imports~ |
| [[kbd:][<localleader> i o]] | ~Optimize imports~ |
| [[kbd:][<localleader> t r]] | ~nosetests-again~ |
| [[kbd:][<localleader> t a]] | ~nosetests-all~ |
| [[kbd:][<localleader> t s]] | ~nosetests-one~ |
| [[kbd:][<localleader> t v]] | ~nosetests-module~ |
| [[kbd:][<localleader> t A]] | ~nosetests-pdb-all~ |
| [[kbd:][<localleader> t O]] | ~nosetests-pdb-one~ |
| [[kbd:][<localleader> t V]] | ~nosetests-pdb-module~ |
| [[kbd:][<localleader> t f]] | ~python-pytest-file~ |
| [[kbd:][<localleader> t k]] | ~python-pytest-file-dwim~ |
| [[kbd:][<localleader> t t]] | ~python-pytest-function~ |
| [[kbd:][<localleader> t m]] | ~python-pytest-function-dwim~ |
| [[kbd:][<localleader> t r]] | ~python-pytest-repeat~ |
| [[kbd:][<localleader> t p]] | ~python-pytest-popup~ |
| [[kbd:][<localleader> g d]] | ~anaconda-mode-find-definitions~ |
| [[kbd:][<localleader> g h]] | ~anaconda-mode-show-doc~ |
| [[kbd:][<localleader> g a]] | ~anaconda-mode-find-assignments~ |
| [[kbd:][<localleader> g f]] | ~anaconda-mode-find-file~ |
| [[kbd:][<localleader> g u]] | ~anaconda-mode-find-references~ |
* TODO Configuration
#+begin_quote
🔨 /This module's configuration documentation is incomplete./ [[doom-contrib-module:][Complete it?]]
#+end_quote
This module has the following variables to set extra arguments to [[https://ipython.org/][ipython]] and
[[https://jupyter.org/][jupyter]] shells:
#+begin_src emacs-lisp
;; in $DOOMDIR/config.el
(setq +python-ipython-repl-args '("-i" "--simple-prompt" "--no-color-info"))
(setq +python-jupyter-repl-args '("--simple-prompt"))
#+end_src
* Troubleshooting
/There are no known problems with this module./ [[doom-report:][Report one?]]
* Frequently asked questions
/This module has no FAQs yet./ [[doom-suggest-faq:][Ask one?]]
* TODO Appendix
#+begin_quote
🔨 This module has no appendix yet. [[doom-contrib-module:][Write one?]]
#+end_quote