Using different versions of python with virtualenvwrapper

python virtualenvwrapper
wmfox3 picture wmfox3 · Jun 19, 2011 · Viewed 66.1k times · Source

I've got various versions of python installed on my Mac using Macports. When I've selected python 2.7 via $ port select python python27, virtualenvwrapper works perfectly.

But if I select another version of python, i.e. 2.6, virtualenvwrapper generates an error message: ImportError: No module named virtualenvwrapper.hook_loader

I checked my .profile and it's setting VIRTUALENVWRAPPER_PYTHON to /opt/local/bin/python, so it seems to me virtualenvwrapper should work regardless of which python I've selected.

Any idea what would cause virtualenvwrapper to generate a .hook_loader error when I switch python versions?

Answer

Dos picture Dos · May 3, 2019

You can select the python version explicitly

mkvirtualenv -p python3 venvname

or 

mkvirtualenv -p python2.7 venvname

Related questions

How to leave/exit/deactivate a Python virtualenv

I'm using virtualenv and the virtualenvwrapper. I can switch between virtualenv's just fine using the workon command. me@mymachine:~$ workon env1 (env1)me@mymachine:~$ workon env2 (env2)me@mymachine:~$ workon env1 (env1)me@mymachine:~$ How do I exit all virtual …

Read More
Use different Python version with virtualenv

I have a Debian system currently running with python 2.5.4. I got virtualenv properly installed, everything is working fine. Is there a possibility that I can use a virtualenv with a different version of Python? I compiled Python 2.6.2 and would like …

Read More
How to use MySQLdb with Python and Django in OSX 10.6?

This is a much discussed issue for OSX 10.6 users, but I haven't been able to find a solution that works. Here's my setup: Python 2.6.1 64bit Django 1.2.1 MySQL 5.1.47 osx10.6 64bit I create a virtualenvwrapper with --no-site-packages, then installed Django. When I …

Read More