blob: 970199b42a60b6b565cc1ca68208f5bae7a98054 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
;;; .dir-locals.el
;;
;; If you get ``*** EPC Error ***`` (even after a jedi:install-server) in your
;; emacs session, mostly you have jedi-mode enabled but the python enviroment is
;; missed. The python environment has to be next to the
;; ``<repo>/.dir-locals.el`` in::
;;
;; ./local/py3
;;
;; In Emacs, some buffer locals are referencing the project environment:
;;
;; - prj-root --> <repo>/
;; - python-environment-directory --> <repo>/local
;; - python-environment-default-root-name --> py3
;; - python-shell-virtualenv-root --> <repo>/local/py3
;; When this variable is set with the path of the virtualenv to use,
;; `process-environment' and `exec-path' get proper values in order to run
;; shells inside the specified virtualenv, example::
;; (setq python-shell-virtualenv-root "/path/to/env/")
;;
;; To setup such an environment build target 'pyenv' or 'pyenvinstall'::
;;
;; $ make pyenvinstall
;;
;; Alternatively create the virtualenv, source it and install jedi + epc
;; (required by `emacs-jedi <https://tkf.github.io/emacs-jedi>`_)::
;;
;; $ python -m venv ./local/py3
;; ...
;; $ source ./local/py3/bin/activate
;; (py3)$ # now install into the activated 'py3' environment ..
;; (py3)$ pip install jedi epc
;; ...
;;
;; Here is what also I found useful to add to my .emacs::
;;
;; (global-set-key [f6] 'flycheck-mode)
;; (add-hook 'python-mode-hook 'my:python-mode-hook)
;;
;; (defun my:python-mode-hook ()
;; (add-to-list 'company-backends 'company-jedi)
;; (require 'jedi-core)
;; (jedi:setup)
;; (define-key python-mode-map (kbd "C-c C-d") 'jedi:show-doc)
;; (define-key python-mode-map (kbd "M-.") 'jedi:goto-definition)
;; (define-key python-mode-map (kbd "M-,") 'jedi:goto-definition-pop-marker)
;; )
;;
((nil
. ((fill-column . 80)
))
(python-mode
. ((indent-tabs-mode . nil)
;; project root folder is where the `.dir-locals.el' is located
(eval . (setq-local
prj-root (locate-dominating-file default-directory ".dir-locals.el")))
(eval . (setq-local
python-environment-directory (expand-file-name "./local" prj-root)))
;; use 'py3' enviroment as default
(eval . (setq-local
python-environment-default-root-name "py3"))
(eval . (setq-local
python-shell-virtualenv-root
(concat python-environment-directory
"/"
python-environment-default-root-name)))
;; python-shell-virtualenv-path is obsolete, use python-shell-virtualenv-root!
;; (eval . (setq-local
;; python-shell-virtualenv-path python-shell-virtualenv-root))
(eval . (setq-local
python-shell-interpreter
(expand-file-name "bin/python" python-shell-virtualenv-root)))
(eval . (setq-local
python-environment-virtualenv
(list (expand-file-name "bin/virtualenv" python-shell-virtualenv-root)
;;"--system-site-packages"
"--quiet")))
(eval . (setq-local
pylint-command
(expand-file-name "bin/pylint" python-shell-virtualenv-root)))
;; pylint will find the '.pylintrc' file next to the CWD
;; https://pylint.readthedocs.io/en/latest/user_guide/run.html#command-line-options
(eval . (setq-local
flycheck-pylintrc ".pylintrc"))
;; flycheck & other python stuff should use the local py3 environment
(eval . (setq-local
flycheck-python-pylint-executable python-shell-interpreter))
;; use 'M-x jedi:show-setup-info' and 'M-x epc:controller' to inspect jedi server
;; https://tkf.github.io/emacs-jedi/latest/#jedi:environment-root -- You
;; can specify a full path instead of a name (relative path). In that case,
;; python-environment-directory is ignored and Python virtual environment
;; is created at the specified path.
(eval . (setq-local jedi:environment-root python-shell-virtualenv-root))
;; https://tkf.github.io/emacs-jedi/latest/#jedi:server-command
(eval .(setq-local
jedi:server-command
(list python-shell-interpreter
jedi:server-script)
))
;; jedi:environment-virtualenv --> see above 'python-environment-virtualenv'
;; is set buffer local! No need to setup jedi:environment-virtualenv:
;;
;; Virtualenv command to use. A list of string. If it is nil,
;; python-environment-virtualenv is used instead. You must set non-nil
;; value to jedi:environment-root in order to make this setting work.
;;
;; https://tkf.github.io/emacs-jedi/latest/#jedi:environment-virtualenv
;;
;; (eval . (setq-local
;; jedi:environment-virtualenv
;; (list (expand-file-name "bin/virtualenv" python-shell-virtualenv-root)
;; ;;"--python"
;; ;;"/usr/bin/python3.4"
;; )))
;; jedi:server-args
)))
|
