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elpy.el
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;;; elpy.el --- Emacs Python Development Environment -*- lexical-binding: t -*-
;; Copyright (C) 2012-2019 Jorgen Schaefer
;; Author: Jorgen Schaefer <[email protected]>, Gaby Launay <[email protected]>
;; URL: https://github.com/jorgenschaefer/elpy
;; Version: 1.35.0
;; Keywords: Python, IDE, Languages, Tools
;; Package-Requires: ((company "0.9.10") (emacs "24.4") (highlight-indentation "0.7.0") (pyvenv "1.20") (yasnippet "0.13.0") (s "1.12.0"))
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License
;; as published by the Free Software Foundation; either version 3
;; of the License, or (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http:https://www.gnu.org/licenses/>.
;;; Commentary:
;; The Emacs Lisp Python Environment in Emacs
;; Elpy is an Emacs package to bring powerful Python editing to Emacs.
;; It combines a number of existing Emacs packages, both written in
;; Emacs Lisp as well as Python.
;; For more information, read the Elpy manual:
;; https://elpy.readthedocs.io/en/latest/index.html
;;; Code:
(require 'cus-edit)
(require 'etags)
(require 'files-x)
(require 'grep)
(require 'hideshow)
(require 'ido)
(require 'json)
(require 'python)
(require 'subr-x)
(require 'xref nil t)
(require 'cl-lib) ; for `cl-every', `cl-copy-list', `cl-delete-if-not'
(require 'elpy-refactor)
(require 'elpy-django)
(require 'elpy-profile)
(require 'elpy-shell)
(require 'elpy-rpc)
(require 'pyvenv)
(defconst elpy-version "1.35.0"
"The version of the Elpy Lisp code.")
;;;;;;;;;;;;;;;;;;;;;;
;;; User customization
(defgroup elpy nil
"The Emacs Lisp Python Environment."
:prefix "elpy-"
:group 'languages)
(defcustom elpy-mode-hook nil
"Hook run when `elpy-mode' is enabled.
This can be used to enable minor modes for Python development."
:type 'hook
:options '(subword-mode hl-line-mode)
:group 'elpy)
(defcustom elpy-modules '(elpy-module-sane-defaults
elpy-module-company
elpy-module-eldoc
elpy-module-flymake
elpy-module-highlight-indentation
elpy-module-pyvenv
elpy-module-yasnippet
elpy-module-django)
"Which Elpy modules to use.
Elpy can use a number of modules for additional features, which
can be individually enabled or disabled."
:type '(set (const :tag "Inline code completion (company-mode)"
elpy-module-company)
(const :tag "Show function signatures (ElDoc)"
elpy-module-eldoc)
(const :tag "Highlight syntax errors (Flymake)"
elpy-module-flymake)
(const :tag "Code folding"
elpy-module-folding)
(const :tag "Show the virtualenv in the mode line (pyvenv)"
elpy-module-pyvenv)
(const :tag "Display indentation markers (highlight-indentation)"
elpy-module-highlight-indentation)
(const :tag "Expand code snippets (YASnippet)"
elpy-module-yasnippet)
(const :tag "Django configurations (Elpy-Django)"
elpy-module-django)
(const :tag "Automatically update documentation (Autodoc)."
elpy-module-autodoc)
(const :tag "Configure some sane defaults for Emacs"
elpy-module-sane-defaults))
:group 'elpy)
(defcustom elpy-project-ignored-directories
'(".tox" "build" "dist" ".cask" ".ipynb_checkpoints")
"Directories ignored by functions working on the whole project.
This is in addition to `vc-directory-exclusion-list'
and `grep-find-ignored-directories', as appropriate."
:type '(repeat string)
:safe (lambda (val)
(cl-every #'stringp val))
:group 'elpy)
(defun elpy-project-ignored-directories ()
"Compute the list of ignored directories for project.
Combines
`elpy-project-ignored-directories'
`vc-directory-exclusion-list'
`grep-find-ignored-directories'"
(delete-dups
(append elpy-project-ignored-directories
vc-directory-exclusion-list
(if (fboundp 'rgrep-find-ignored-directories)
(rgrep-find-ignored-directories (elpy-project-root))
(cl-delete-if-not #'stringp (cl-copy-list
grep-find-ignored-directories))))))
(defcustom elpy-project-root nil
"The root of the project the current buffer is in.
There is normally no use in setting this variable directly, as
Elpy tries to detect the project root automatically. See
`elpy-project-root-finder-functions' for a way of influencing
this.
Setting this variable globally will override Elpy's automatic
project detection facilities entirely.
Alternatively, you can set this in file- or directory-local
variables using \\[add-file-local-variable] or
\\[add-dir-local-variable].
Do not use this variable in Emacs Lisp programs. Instead, call
the `elpy-project-root' function. It will do the right thing."
:type 'directory
:safe 'file-directory-p
:group 'elpy)
(make-variable-buffer-local 'elpy-project-root)
(defcustom elpy-project-root-finder-functions
'(elpy-project-find-projectile-root
elpy-project-find-python-root
elpy-project-find-git-root
elpy-project-find-hg-root
elpy-project-find-svn-root)
"List of functions to ask for the current project root.
These will be checked in turn. The first directory found is used."
:type '(set (const :tag "Projectile project root"
elpy-project-find-projectile-root)
(const :tag "Python project (setup.py, setup.cfg)"
elpy-project-find-python-root)
(const :tag "Git repository root (.git)"
elpy-project-find-git-root)
(const :tag "Mercurial project root (.hg)"
elpy-project-find-hg-root)
(const :tag "Subversion project root (.svn)"
elpy-project-find-svn-root)
(const :tag "Django project root (manage.py, django-admin.py)"
elpy-project-find-django-root))
:group 'elpy)
(make-obsolete-variable 'elpy-company-hide-modeline
'elpy-remove-modeline-lighter
"1.10.0")
(defcustom elpy-remove-modeline-lighter t
"Non-nil if Elpy should remove most mode line display.
Modeline shows many minor modes currently active. For Elpy, this is mostly
uninteresting information, but if you rely on your modeline in other modes,
you might want to keep it."
:type 'boolean
:group 'elpy)
(defcustom elpy-company-post-completion-function 'ignore
"Your preferred Company post completion function.
Elpy can automatically insert parentheses after completing
callable objects.
The heuristic on when to insert these parentheses can easily be
wrong, though, so this is disabled by default. Set this variable
to the function `elpy-company-post-complete-parens' to enable
this feature."
:type '(choice (const :tag "Ignore post complete" ignore)
(const :tag "Complete callables with parens"
elpy-company-post-complete-parens)
(function :tag "Other function"))
:group 'elpy)
(defcustom elpy-get-info-from-shell nil
"If t, use the shell to gather docstrings and completions.
Normally elpy provides completion and documentation using static code analysis (from jedi). With this option set to t, elpy will add the completion candidates and the docstrings from the associated python shell; This activates fallback completion candidates for cases when static code analysis fails."
:type 'boolean
:group 'elpy)
(defcustom elpy-get-info-from-shell-timeout 1
"Timeout (in seconds) for gathering information from the shell."
:type 'number
:group 'elpy)
(defcustom elpy-eldoc-show-current-function t
"If true, show the current function if no calltip is available.
When Elpy can not find the calltip of the function call at point,
it can show the name of the function or class and method being
edited instead. Setting this variable to nil disables this feature."
:type 'boolean
:group 'elpy)
(defcustom elpy-test-runner 'elpy-test-discover-runner
"The test runner to use to run tests."
:type '(choice (const :tag "Unittest Discover" elpy-test-discover-runner)
(const :tag "Green" elpy-test-green-runner)
(const :tag "Django Discover" elpy-test-django-runner)
(const :tag "Nose" elpy-test-nose-runner)
(const :tag "py.test" elpy-test-pytest-runner)
(const :tag "Twisted Trial" elpy-test-trial-runner))
:safe 'elpy-test-runner-p
:group 'elpy)
(defcustom elpy-test-discover-runner-command '("python-shell-interpreter" "-m" "unittest")
"The command to use for `elpy-test-discover-runner'.
If the string \"python-shell-interpreter\" is present, it will be replaced with
the value of `python-shell-interpreter'."
:type '(repeat string)
:group 'elpy)
(defcustom elpy-test-green-runner-command '("green")
"The command to use for `elpy-test-green-runner'."
:type '(repeat string)
:group 'elpy)
(defcustom elpy-test-nose-runner-command '("nosetests")
"The command to use for `elpy-test-nose-runner'."
:type '(repeat string)
:group 'elpy)
(defcustom elpy-test-trial-runner-command '("trial")
"The command to use for `elpy-test-trial-runner'."
:type '(repeat string)
:group 'elpy)
(defcustom elpy-test-pytest-runner-command '("py.test")
"The command to use for `elpy-test-pytest-runner'."
:type '(repeat string)
:group 'elpy)
(defcustom elpy-test-compilation-function 'compile
"Function used by `elpy-test-run' to run a test command.
The function should behave similarly to `compile'. Another good
option is `pdb'."
:type 'string
:group 'elpy)
(defcustom elpy-rgrep-file-pattern "*.py"
"FILES to use for `elpy-rgrep-symbol'."
:type 'string
:group 'elpy)
(defcustom elpy-disable-backend-error-display t
"Non-nil if Elpy should disable backend error display."
:type 'boolean
:group 'elpy)
(defcustom elpy-formatter nil
"Auto formatter used by `elpy-format-code'.
if nil, use the first formatter found amongst
`yapf' , `autopep8' and `black'."
:type '(choice (const :tag "First one found" nil)
(const :tag "Yapf" yapf)
(const :tag "autopep8" autopep8)
(const :tag "Black" black))
:group 'elpy)
(defcustom elpy-syntax-check-command "flake8"
"The command to use for `elpy-check'."
:type 'string
:group 'elpy)
;;;;;;;;;;;;;
;;; Elpy Mode
(defvar elpy-refactor-map
(let ((map (make-sparse-keymap "Refactor")))
(define-key map (kbd "i") (cons (format "%snline"
(propertize "i" 'face 'bold))
'elpy-refactor-inline))
(define-key map (kbd "f") (cons (format "%sunction extraction"
(propertize "f" 'face 'bold))
'elpy-refactor-extract-function))
(define-key map (kbd "v") (cons (format "%sariable extraction"
(propertize "v" 'face 'bold))
'elpy-refactor-extract-variable))
(define-key map (kbd "r") (cons (format "%sename"
(propertize "r" 'face 'bold))
'elpy-refactor-rename))
map)
"Key map for the refactor command.")
(defvar elpy-mode-map
(let ((map (make-sparse-keymap)))
;; Alphabetical order to make it easier to find free C-c C-X
;; bindings in the future. Heh.
;; (define-key map (kbd "<backspace>") 'python-indent-dedent-line-backspace)
;; (define-key map (kbd "<backtab>") 'python-indent-dedent-line)
;; (define-key map (kbd "C-M-x") 'python-shell-send-defun)
;; (define-key map (kbd "C-c <") 'python-indent-shift-left)
;; (define-key map (kbd "C-c >") 'python-indent-shift-right)
(define-key map (kbd "C-c RET") 'elpy-importmagic-add-import)
(define-key map (kbd "C-c C-b") 'elpy-nav-expand-to-indentation)
(define-key map (kbd "C-c C-c") 'elpy-shell-send-region-or-buffer)
(define-key map (kbd "C-c C-d") 'elpy-doc)
(define-key map (kbd "C-c C-e") 'elpy-multiedit-python-symbol-at-point)
(define-key map (kbd "C-c C-f") 'elpy-find-file)
(define-key map (kbd "C-c C-n") 'elpy-flymake-next-error)
(define-key map (kbd "C-c C-o") 'elpy-occur-definitions)
(define-key map (kbd "C-c C-p") 'elpy-flymake-previous-error)
(define-key map (kbd "C-c @ C-c") 'elpy-folding-toggle-at-point)
(define-key map (kbd "C-c @ C-b") 'elpy-folding-toggle-docstrings)
(define-key map (kbd "C-c @ C-m") 'elpy-folding-toggle-comments)
(define-key map (kbd "C-c @ C-f") 'elpy-folding-hide-leafs)
(define-key map (kbd "C-c C-s") 'elpy-rgrep-symbol)
(define-key map (kbd "C-c C-t") 'elpy-test)
(define-key map (kbd "C-c C-v") 'elpy-check)
(define-key map (kbd "C-c C-z") 'elpy-shell-switch-to-shell)
(define-key map (kbd "C-c C-k") 'elpy-shell-kill)
(define-key map (kbd "C-c C-K") 'elpy-shell-kill-all)
(define-key map (kbd "C-c C-r") elpy-refactor-map)
(define-key map (kbd "C-c C-x") elpy-django-mode-map)
(define-key map (kbd "<S-return>") 'elpy-open-and-indent-line-below)
(define-key map (kbd "<C-S-return>") 'elpy-open-and-indent-line-above)
(define-key map (kbd "<C-return>") 'elpy-shell-send-statement-and-step)
(define-key map (kbd "<C-down>") 'elpy-nav-forward-block)
(define-key map (kbd "<C-up>") 'elpy-nav-backward-block)
(define-key map (kbd "<C-left>") 'elpy-nav-backward-indent)
(define-key map (kbd "<C-right>") 'elpy-nav-forward-indent)
(define-key map (kbd "<M-down>") 'elpy-nav-move-line-or-region-down)
(define-key map (kbd "<M-up>") 'elpy-nav-move-line-or-region-up)
(define-key map (kbd "<M-left>") 'elpy-nav-indent-shift-left)
(define-key map (kbd "<M-right>") 'elpy-nav-indent-shift-right)
(unless (fboundp 'xref-find-definitions)
(define-key map (kbd "M-.") 'elpy-goto-definition))
(if (not (fboundp 'xref-find-definitions-other-window))
(define-key map (kbd "C-x 4 M-.") 'elpy-goto-definition-other-window)
(define-key map (kbd "C-x 4 M-.") 'xref-find-definitions-other-window))
(when (fboundp 'xref-pop-marker-stack)
(define-key map (kbd "M-*") 'xref-pop-marker-stack))
(define-key map (kbd "M-TAB") 'elpy-company-backend)
map)
"Key map for the Emacs Lisp Python Environment.")
(defvar elpy-shell-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "e") 'elpy-shell-send-statement)
(define-key map (kbd "E") 'elpy-shell-send-statement-and-go)
(define-key map (kbd "s") 'elpy-shell-send-top-statement)
(define-key map (kbd "S") 'elpy-shell-send-top-statement-and-go)
(define-key map (kbd "f") 'elpy-shell-send-defun)
(define-key map (kbd "F") 'elpy-shell-send-defun-and-go)
(define-key map (kbd "c") 'elpy-shell-send-defclass)
(define-key map (kbd "C") 'elpy-shell-send-defclass-and-go)
(define-key map (kbd "o") 'elpy-shell-send-group)
(define-key map (kbd "O") 'elpy-shell-send-group-and-go)
(define-key map (kbd "w") 'elpy-shell-send-codecell)
(define-key map (kbd "W") 'elpy-shell-send-codecell-and-go)
(define-key map (kbd "r") 'elpy-shell-send-region-or-buffer)
(define-key map (kbd "R") 'elpy-shell-send-region-or-buffer-and-go)
(define-key map (kbd "b") 'elpy-shell-send-buffer)
(define-key map (kbd "B") 'elpy-shell-send-buffer-and-go)
(define-key map (kbd "C-e") 'elpy-shell-send-statement-and-step)
(define-key map (kbd "C-S-E") 'elpy-shell-send-statement-and-step-and-go)
(define-key map (kbd "C-s") 'elpy-shell-send-top-statement-and-step)
(define-key map (kbd "C-S-S") 'elpy-shell-send-top-statement-and-step-and-go)
(define-key map (kbd "C-f") 'elpy-shell-send-defun-and-step)
(define-key map (kbd "C-S-F") 'elpy-shell-send-defun-and-step-and-go)
(define-key map (kbd "C-c") 'elpy-shell-send-defclass-and-step)
(define-key map (kbd "C-S-C") 'elpy-shell-send-defclass-and-step-and-go)
(define-key map (kbd "C-o") 'elpy-shell-send-group-and-step)
(define-key map (kbd "C-S-O") 'elpy-shell-send-group-and-step-and-go)
(define-key map (kbd "C-w") 'elpy-shell-send-codecell-and-step)
(define-key map (kbd "C-S-W") 'elpy-shell-send-codecell-and-step-and-go)
(define-key map (kbd "C-r") 'elpy-shell-send-region-or-buffer-and-step)
(define-key map (kbd "C-S-R") 'elpy-shell-send-region-or-buffer-and-step-and-go)
(define-key map (kbd "C-b") 'elpy-shell-send-buffer-and-step)
(define-key map (kbd "C-S-B") 'elpy-shell-send-buffer-and-step-and-go)
map)
"Key map for the shell related commands.")
(fset 'elpy-shell-map elpy-shell-map)
(defcustom elpy-shell-command-prefix-key "C-c C-y"
"Prefix key used to call elpy shell related commands.
This option need to bet set through `customize' or `customize-set-variable' to be taken into account."
:type 'string
:group 'elpy
:set
(lambda (var key)
(when (and (boundp var) (symbol-value var))
(define-key elpy-mode-map (kbd (symbol-value var)) nil))
(when key
(define-key elpy-mode-map (kbd key) 'elpy-shell-map)
(set var key))))
(defvar elpy-pdb-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "d") 'elpy-pdb-debug-buffer)
(define-key map (kbd "p") 'elpy-pdb-break-at-point)
(define-key map (kbd "e") 'elpy-pdb-debug-last-exception)
(define-key map (kbd "b") 'elpy-pdb-toggle-breakpoint-at-point)
map)
"Key map for the shell related commands.")
(fset 'elpy-pdb-map elpy-pdb-map)
(define-key elpy-mode-map (kbd "C-c C-u") 'elpy-pdb-map)
(easy-menu-define elpy-menu elpy-mode-map
"Elpy Mode Menu"
'("Elpy"
["Documentation" elpy-doc
:help "Get documentation for symbol at point"]
["Run Tests" elpy-test
:help "Run test at point, or all tests in the project"]
["Go to Definition" elpy-goto-definition
:help "Go to the definition of the symbol at point"]
["Go to previous definition" pop-tag-mark
:active (if (version< emacs-version "25.1")
(not (ring-empty-p find-tag-marker-ring))
(> xref-marker-ring-length 0))
:help "Return to the position"]
["Complete" elpy-company-backend
:keys "M-TAB"
:help "Complete at point"]
["Refactor" elpy-refactor
:help "Refactor options"]
"---"
("Interactive Python"
["Switch to Python Shell" elpy-shell-switch-to-shell
:help "Start and switch to the interactive Python"]
["Send Region or Buffer" elpy-shell-send-region-or-buffer
:label (if (use-region-p)
"Send Region to Python"
"Send Buffer to Python")
:help "Send the current region or the whole buffer to Python"]
["Send Definition" elpy-shell-send-defun
:help "Send current definition to Python"]
["Kill Python shell" elpy-shell-kill
:help "Kill the current Python shell"]
["Kill all Python shells" elpy-shell-kill-all
:help "Kill all Python shells"])
("Debugging"
["Debug buffer" elpy-pdb-debug-buffer
:help "Debug the current buffer using pdb"]
["Debug at point" elpy-pdb-break-at-point
:help "Debug the current buffer and stop at the current position"]
["Debug last exception" elpy-pdb-debug-last-exception
:help "Run post-mortem pdb on the last exception"]
["Add/remove breakpoint" elpy-pdb-toggle-breakpoint-at-point
:help "Add or remove a breakpoint at the current position"])
("Project"
["Find File" elpy-find-file
:help "Interactively find a file in the current project"]
["Find Symbol" elpy-rgrep-symbol
:help "Find occurrences of a symbol in the current project"]
["Set Project Root" elpy-set-project-root
:help "Change the current project root"]
["Set Project Variable" elpy-set-project-variable
:help "Configure a project-specific option"])
("Syntax Check"
["Check Syntax" elpy-check
:help "Check the syntax of the current file"]
["Next Error" elpy-flymake-next-error
:help "Go to the next inline error, if any"]
["Previous Error" elpy-flymake-previous-error
:help "Go to the previous inline error, if any"])
("Code folding"
["Hide/show at point" elpy-folding-toggle-at-point
:help "Hide or show the block or docstring at point"]
["Hide/show all docstrings" elpy-folding-toggle-docstrings
:help "Hide or show all the docstrings"]
["Hide/show all comments" elpy-folding-toggle-comments
:help "Hide or show all the comments"]
["Hide leafs" elpy-folding-hide-leafs
:help "Hide all leaf blocks (blocks not containing other blocks)"])
("Indentation Blocks"
["Dedent" python-indent-shift-left
:help "Dedent current block or region"
:suffix (if (use-region-p) "Region" "Block")]
["Indent" python-indent-shift-right
:help "Indent current block or region"
:suffix (if (use-region-p) "Region" "Block")]
["Up" elpy-nav-move-line-or-region-up
:help "Move current block or region up"
:suffix (if (use-region-p) "Region" "Block")]
["Down" elpy-nav-move-line-or-region-down
:help "Move current block or region down"
:suffix (if (use-region-p) "Region" "Block")])
"---"
["Configure" elpy-config t]))
(defvar elpy-enabled-p nil
"Is Elpy enabled or not.")
;;;###autoload
(defun elpy-enable (&optional _ignored)
"Enable Elpy in all future Python buffers."
(interactive)
(unless elpy-enabled-p
(when (< emacs-major-version 24)
(error "Elpy requires Emacs 24 or newer"))
(when _ignored
(warn "The argument to `elpy-enable' is deprecated, customize `elpy-modules' instead"))
(let ((filename (find-lisp-object-file-name 'python-mode
'symbol-function)))
(when (and filename
(string-match "/python-mode\\.el\\'"
filename))
(error (concat "You are using python-mode.el. "
"Elpy only works with python.el from "
"Emacs 24 and above"))))
(elpy-modules-global-init)
(define-key inferior-python-mode-map (kbd "C-c C-z") 'elpy-shell-switch-to-buffer)
(add-hook 'python-mode-hook 'elpy-mode)
(add-hook 'pyvenv-post-activate-hooks 'elpy-rpc--disconnect)
(add-hook 'pyvenv-post-deactivate-hooks 'elpy-rpc--disconnect)
(add-hook 'inferior-python-mode-hook 'elpy-shell--enable-output-filter)
(add-hook 'python-shell-first-prompt-hook 'elpy-shell--send-setup-code t)
;; Add codecell boundaries highligting
(font-lock-add-keywords
'python-mode
`((,(replace-regexp-in-string "\\\\" "\\\\"
elpy-shell-cell-boundary-regexp)
0 'elpy-codecell-boundary prepend)))
;; Enable Elpy-mode in the opened python buffer
(setq elpy-enabled-p t)
(dolist (buffer (buffer-list))
(and (not (string-match "^ ?\\*" (buffer-name buffer)))
(with-current-buffer buffer
(when (string= major-mode 'python-mode)
(python-mode) ;; update codecell fontification
(elpy-mode t)))))
))
(defun elpy-disable ()
"Disable Elpy in all future Python buffers."
(interactive)
(elpy-modules-global-stop)
(define-key inferior-python-mode-map (kbd "C-c C-z") nil)
(remove-hook 'python-mode-hook 'elpy-mode)
(remove-hook 'pyvenv-post-activate-hooks 'elpy-rpc--disconnect)
(remove-hook 'pyvenv-post-deactivate-hooks 'elpy-rpc--disconnect)
(remove-hook 'inferior-python-mode-hook 'elpy-shell--enable-output-filter)
(remove-hook 'python-shell-first-prompt-hook 'elpy-shell--send-setup-code)
;; Remove codecell boundaries highligting
(font-lock-remove-keywords
'python-mode
`((,(replace-regexp-in-string "\\\\" "\\\\"
elpy-shell-cell-boundary-regexp)
0 'elpy-codecell-boundary prepend)))
(setq elpy-enabled-p nil))
;;;###autoload
(define-minor-mode elpy-mode
"Minor mode in Python buffers for the Emacs Lisp Python Environment.
This mode fully supports virtualenvs. Once you switch a
virtualenv using \\[pyvenv-workon], you can use
\\[elpy-rpc-restart] to make the elpy Python process use your
virtualenv.
\\{elpy-mode-map}"
:lighter " Elpy"
(unless (derived-mode-p 'python-mode)
(error "Elpy only works with `python-mode'"))
(unless elpy-enabled-p
(error "Please enable Elpy with `(elpy-enable)` before using it"))
(when (boundp 'xref-backend-functions)
(add-hook 'xref-backend-functions #'elpy--xref-backend nil t))
;; Set this for `elpy-check' command
(setq-local python-check-command elpy-syntax-check-command)
(cond
(elpy-mode
(elpy-modules-buffer-init))
((not elpy-mode)
(elpy-modules-buffer-stop))))
;;;;;;;;;;;;;;;
;;; Elpy Config
(defvar elpy-config--related-custom-groups
'(("Elpy" elpy "elpy-")
("Python" python "python-")
("Virtual Environments (Pyvenv)" pyvenv "pyvenv-")
("Completion (Company)" company "company-")
("Call Signatures (ElDoc)" eldoc "eldoc-")
("Inline Errors (Flymake)" flymake "flymake-")
("Code folding (hideshow)" hideshow "hs-")
("Snippets (YASnippet)" yasnippet "yas-")
("Directory Grep (rgrep)" grep "grep-")
("Search as You Type (ido)" ido "ido-")
("Django extension" elpy-django "elpy-django-")
("Autodoc extension" elpy-autodoc "elpy-autodoc-")
;; ffip does not use defcustom
;; highlight-indent does not use defcustom, either. Its sole face
;; is defined in basic-faces.
))
(defvar elpy-config--get-config "import json
import sys
import warnings
warnings.filterwarnings('ignore', category=FutureWarning)
warnings.filterwarnings('ignore', category=DeprecationWarning)
warnings.filterwarnings('ignore', category=PendingDeprecationWarning)
from distutils.version import LooseVersion
try:
import urllib2 as urllib
except ImportError:
import urllib.request as urllib
# Check if we can connect to pypi quickly enough
try:
response = urllib.urlopen('https://pypi.org/pypi', timeout=1)
CAN_CONNECT_TO_PYPI = True
except:
CAN_CONNECT_TO_PYPI = False
def latest(package, version=None):
if not CAN_CONNECT_TO_PYPI:
return None
try:
response = urllib.urlopen('https://pypi.org/pypi/{package}/json'.format(package=package),
timeout=2).read()
latest = json.loads(response)['info']['version']
if version is None or LooseVersion(version) < LooseVersion(latest):
return latest
else:
return None
except:
return None
config = {}
config['can_connect_to_pypi'] = CAN_CONNECT_TO_PYPI
config['rpc_python_version'] = ('{major}.{minor}.{micro}'
.format(major=sys.version_info[0],
minor=sys.version_info[1],
micro=sys.version_info[2]))
try:
import elpy
config['elpy_version'] = elpy.__version__
except:
config['elpy_version'] = None
try:
import jedi
if isinstance(jedi.__version__, tuple):
config['jedi_version'] = '.'.join(str(x) for x in jedi.__version__)
else:
config['jedi_version'] = jedi.__version__
config['jedi_latest'] = latest('jedi', config['jedi_version'])
except:
config['jedi_version'] = None
config['jedi_latest'] = latest('jedi')
try:
import autopep8
config['autopep8_version'] = autopep8.__version__
config['autopep8_latest'] = latest('autopep8', config['autopep8_version'])
except:
config['autopep8_version'] = None
config['autopep8_latest'] = latest('autopep8')
try:
import yapf
config['yapf_version'] = yapf.__version__
config['yapf_latest'] = latest('yapf', config['yapf_version'])
except:
config['yapf_version'] = None
config['yapf_latest'] = latest('yapf')
try:
import black
config['black_version'] = black.__version__
config['black_latest'] = latest('black', config['black_version'])
except:
config['black_version'] = None
config['black_latest'] = latest('black')
json.dump(config, sys.stdout)
")
(defun elpy-config-error (&optional fmt &rest args)
"Note a configuration problem.
FMT is the formating string.
This will show a message in the minibuffer that tells the user to
use \\[elpy-config]."
(let ((msg (if fmt
(apply #'format fmt args)
"Elpy is not properly configured")))
(error "%s; use M-x elpy-config to configure it" msg)))
;;;###autoload
(defun elpy-config ()
"Configure Elpy.
This function will pop up a configuration buffer, which is mostly
a customize buffer, but has some more options."
(interactive)
(let ((buf (custom-get-fresh-buffer "*Elpy Config*"))
(config (elpy-config--get-config))
(custom-search-field nil))
(with-current-buffer buf
(elpy-insert--header "Elpy Configuration")
(elpy-config--insert-configuration-table config)
(insert "\n")
(elpy-insert--header "Warnings")
(elpy-config--insert-configuration-problems config)
(elpy-insert--header "Options")
(let ((custom-buffer-style 'tree))
(Custom-mode)
(elpy-config--insert-help)
(dolist (cust elpy-config--related-custom-groups)
(widget-create 'custom-group
:custom-last t
:custom-state 'hidden
:tag (car cust)
:value (cadr cust)))
(widget-setup)
(goto-char (point-min))))
(pop-to-buffer-same-window buf)))
;;;###autoload
(defun elpy-version ()
"Display the version of Elpy."
(interactive)
(message "Elpy %s (use M-x elpy-config for details)" elpy-version))
(defun elpy-config--insert-help ()
"Insert the customization help."
(let ((start (point)))
;; Help display from `customize-browse'
(widget-insert (format "\
%s buttons; type RET or click mouse-1
on a button to invoke its action.
Invoke [+] to expand a group, and [-] to collapse an expanded group.\n"
(if custom-raised-buttons
"`Raised' text indicates"
"Square brackets indicate")))
(if custom-browse-only-groups
(widget-insert "\
Invoke the [Group] button below to edit that item in another window.\n\n")
(widget-insert "Invoke the ")
(widget-create 'item
:format "%t"
:tag "[Group]"
:tag-glyph "folder")
(widget-insert ", ")
(widget-create 'item
:format "%t"
:tag "[Face]"
:tag-glyph "face")
(widget-insert ", and ")
(widget-create 'item
:format "%t"
:tag "[Option]"
:tag-glyph "option")
(widget-insert " buttons below to edit that
item in another window.\n\n")
(fill-region start (point)))))
(defun elpy-config--insert-configuration-problems (&optional config)
"Insert help text and widgets for configuration problems."
(unless config
(setq config (elpy-config--get-config)))
(let* ((rpc-python-version (gethash "rpc_python_version" config)))
;; Python not found
(unless (gethash "rpc_python_executable" config)
(elpy-insert--para
"Elpy can not find the configured Python interpreter. Please make "
"sure that the variable `elpy-rpc-python-command' points to a "
"command in your PATH. You can change the variable below.\n\n"))
;; No virtual env
(when (and (gethash "rpc_python_executable" config)
(not (gethash "virtual_env" config)))
(elpy-insert--para
"You have not activated a virtual env. It is not mandatory but"
" often a good idea to work inside a virtual env. You can use "
"`M-x pyvenv-activate` or `M-x pyvenv-workon` to activate one.\n\n"))
;; No virtual env, but ~/.local/bin not in PATH
(when (and (not (memq system-type '(ms-dos windows-nt)))
(gethash "rpc_python_executable" config)
(not pyvenv-virtual-env)
(not (or (member (expand-file-name "~/.local/bin")
exec-path)
(member (expand-file-name "~/.local/bin/")
exec-path))))
(elpy-insert--para
"The directory ~/.local/bin/ is not in your PATH. As there is "
"no active virtualenv, installing Python packages locally will "
"place executables in that directory, so Emacs won't find them. "
"If you are missing some commands, do add this directory to your "
"PATH -- and then do `elpy-rpc-restart'.\n\n"))
;; Python found, but can't find the elpy module
(when (and (gethash "rpc_python_executable" config)
(not (gethash "elpy_version" config)))
(elpy-insert--para
"The Python interpreter could not find the elpy module. "
"Please report to: "
"https://github.com/jorgenschaefer/elpy/issues/new."
"\n")
(insert "\n"))
;; Bad backend version
(when (and (gethash "elpy_version" config)
(not (equal (gethash "elpy_version" config)
elpy-version)))
(let ((elpy-python-version (gethash "elpy_version" config)))
(elpy-insert--para
"The Elpy backend is version " elpy-python-version " while "
"the Emacs package is " elpy-version ". This is incompatible. "
"Please report to: https://github.com/jorgenschaefer/elpy/issues/new."
"\n")))
;; Otherwise unparseable output.
(when (gethash "error_output" config)
(elpy-insert--para
"There was an unexpected problem starting the RPC process. Please "
"check the following output to see if this makes sense to you. "
"To me, it doesn't.\n")
(insert "\n"
(gethash "error_output" config) "\n"
"\n"))
;; Interactive python interpreter not in the current virtual env
(when (and pyvenv-virtual-env
(not (string-prefix-p (expand-file-name pyvenv-virtual-env)
(executable-find
python-shell-interpreter))))
(elpy-insert--para
"The python interactive interpreter (" python-shell-interpreter
") is not installed on the current virtualenv ("
pyvenv-virtual-env "). The system binary ("
(executable-find python-shell-interpreter)
") will be used instead."
"\n")
(insert "\n")
(widget-create 'elpy-insert--pip-button
:package python-shell-interpreter :norpc t)
(insert "\n\n"))
;; Couldn't connect to pypi to check package versions
(when (not (gethash "can_connect_to_pypi" config))
(elpy-insert--para
"Elpy could not connect to Pypi (or at least not quickly enough) "
"and check if the python packages were up-to-date. "
"You can still try to update all of them:"
"\n")
(insert "\n")
(widget-create 'elpy-insert--generic-button
:button-name "[Update python packages]"
:function (lambda () (with-elpy-rpc-virtualenv-activated
(elpy-rpc--install-dependencies))))
(insert "\n\n"))
;; Pip not available in the rpc virtualenv
(when (and
(equal elpy-rpc-virtualenv-path 'default)
(elpy-rpc--pip-missing))
(elpy-insert--para
"Pip doesn't seem to be installed in the dedicated virtualenv "
"created by Elpy (" (elpy-rpc-get-virtualenv-path) "). "
"This may prevent some features from working properly"
" (completion, documentation, reformatting, ...). "
"You can try reinstalling the virtualenv. "
"If the problem persists, please report on Elpy's github page."
"\n\n")
(widget-create 'elpy-insert--generic-button
:button-name "[Reinstall RPC virtualenv]"
:function (lambda () (elpy-rpc-reinstall-virtualenv)))
(insert "\n\n"))
;; Requested backend unavailable
(when (and (gethash "rpc_python_executable" config)
(not (gethash "jedi_version" config)))
(elpy-insert--para
"The Jedi package is not currently installed. "
"This package is needed for code completion, code navigation "
"and access to documentation.\n")
(insert "\n")
(widget-create 'elpy-insert--pip-button
:package "jedi")
(insert "\n\n"))
;; Newer version of Jedi available
(when (and (gethash "jedi_version" config)
(gethash "jedi_latest" config))
(elpy-insert--para
"There is a newer version of Jedi available.\n")
(insert "\n")
(widget-create 'elpy-insert--pip-button
:package "jedi" :upgrade t)
(insert "\n\n"))
;; No auto formatting tool available
(unless (or
(gethash "autopep8_version" config)
(gethash "yapf_version" config)
(gethash "black_version" config))
(elpy-insert--para
"No autoformatting package is currently installed. "
"At least one is needed (Autopep8, Yapf or Black) "
"to perform autoformatting (`C-c C-r f` in a python buffer).\n")
(insert "\n")
(widget-create 'elpy-insert--pip-button
:package "autopep8")
(insert "\n")
(widget-create 'elpy-insert--pip-button
:package "yapf")
(insert "\n")
(widget-create 'elpy-insert--pip-button
:package "black")
(insert "\n\n"))
;; Newer version of autopep8 available
(when (and (gethash "autopep8_version" config)
(gethash "autopep8_latest" config))
(elpy-insert--para
"There is a newer version of the autopep8 package available.\n")
(insert "\n")
(widget-create 'elpy-insert--pip-button
:package "autopep8" :upgrade t)
(insert "\n\n"))
;; Newer version of yapf available
(when (and (gethash "yapf_version" config)
(gethash "yapf_latest" config))
(elpy-insert--para
"There is a newer version of the yapf package available.\n")
(insert "\n")
(widget-create 'elpy-insert--pip-button
:package "yapf" :upgrade t)
(insert "\n\n"))
;; Newer version of black available
(when (and (gethash "black_version" config)
(gethash "black_latest" config))
(elpy-insert--para
"There is a newer version of the black package available.\n")
(insert "\n")
(widget-create 'elpy-insert--pip-button
:package "black" :upgrade t)
(insert "\n\n"))
;; Syntax checker not available