How do I add a path to PYTHONPATH in virtualenv
PythonVirtualenvPython Problem Overview
I am trying to add a path to the PYTHONPATH environment variable, that would be only visible from a particular virtualenv environment.
I tried SET PYTHONPATH=... under a virtualenv command prompt, but that sets the variable for the whole environment.
How do I achieve that?
Python Solutions
Solution 1 - Python
You can usually avoid having to do anything with PYTHONPATH by using .pth files. Just put a file with a .pth extension (any basename works) in your virtualenv's site-packages folder, e.g. lib\python2.7\site-packages, with the absolute path to the directory containing your package as its only contents.
Solution 2 - Python
If you're using virtualenv, you should probably also be using virtualenvwrapper, in which case you can use the add2virtualenv command to add paths to the Python path for the current virtualenv:
add2virtualenv directory1 directory2 …
Solution 3 - Python
You can also try to put symlink to one of your virtualenv.
eg.
- activate your virtualenv
- run python
- import sys and check sys.path
- you will find python search path there. Choose one of those (eg. site-packages)
- go there and create symlink to your package like: ln -s path-to-your-package name-with-which-you'll-be-importing
That way you should be able to import it even without activating your virtualenv. Simply try: path-to-your-virtualenv-folder/bin/python and import your package.
Solution 4 - Python
If you are using virtualenvwrapper,
$ cd to the parent folder
$ add2virtualenv folder_to_add
console will display
Warning: Converting "folder_to_add" to "/absoutle/path/to/folder_to_add"
That's it, and you should be good to go
Solution 5 - Python
import sys
import os
print(str(sys.path))
dir_path = os.path.dirname(os.path.realpath(__file__))
print("current working dir: %s" % dir_path)
sys.path.insert(0, dir_path)
I strongly suggest you use virtualenv and virtualenvwrapper to avoid cluttering the path.
Solution 6 - Python
As suggested by @crimeminister above, you can use virtualenvwrapper then add2virtualenv like suggested by @Aneesh Panoli. If add2virtualenv is not working after pip install virtualenvwrapper, then follow instructions in the top voted answer by @chirinosky here. Works for me.