auto-virtualenv

Automatically activate python virtualenvs on emacs based on project name or .python-version file.

Installation

MELPA

auto-virtualenv is available on MELPA.

You can install auto-virtualenv with the following command.

M-x package-install [RET] auto-virtualenv [RET]

Manual

Clone this repository somewhere and add this directory to you load-path.

Configuration

(require 'auto-virtualenv)
(add-hook 'python-mode-hook 'auto-virtualenv-set-virtualenv)

Optionally:

;; Activate on changing buffers
(add-hook 'window-configuration-change-hook 'auto-virtualenv-set-virtualenv)
;; Activate on focus in
(add-hook 'focus-in-hook 'auto-virtualenv-set-virtualenv)

With use-package

(use-package auto-virtualenv
  :ensure t
  :init
  (use-package pyvenv
    :ensure t)
  :config
  (add-hook 'python-mode-hook 'auto-virtualenv-set-virtualenv)
  (add-hook 'projectile-after-switch-project-hook 'auto-virtualenv-set-virtualenv)  ;; If using projectile
  )

How it works

On auto-virtualenv-set-virtualenv, the hierarchy is scanned for a special file, which is part of the list auto-virtualenv-project-root-files. The list contains files which indicate a project root, like a .git directory or a .dir-locals.el file.

In order, files and paths to check for virtualenv to activate:

1. Try path set from auto-virtualenv-custom-virtualenv-path variable
1. Try path from .auto-virtualenv-version file if it exists or
1. Try name from .python-version file if it exists or
1. Try .venv or .virtualenv or venv dir in the root of project
1. Try finding a virtualenv with the same name as Project in virtualenv dirs set in auto-virtualenv-dir.
1. Try common virtualenv paths in home dir: ~/.virtulenvs and ~/.pyenv/versions

The found environment is finally activated using pyvenv-activate.

License

View official GNU site http://www.gnu.org/licenses/gpl.html.