Question

I just wanted to setup a small development environment with Python 3.

I had no problems installing pip and virtualenv, however virtualenvwrapper does not seem to support Python 3 yet (as it states on the mercurial repo).

Trying to install it with pip yields the following error:

  Running setup.py install for virtualenvwrapper

    changing mode of build/scripts-3.2/virtualenvwrapper.sh from 644 to 755
    Skipping installation of /usr/local/lib/python3.2/dist-packages/virtualenvwrapper/__init__.py (namespace package)
    Installing /usr/local/lib/python3.2/dist-packages/virtualenvwrapper-2.11.1-py3.2-nspkg.pth
    changing mode of /usr/local/bin/virtualenvwrapper.sh to 755
      File "/usr/local/lib/python3.2/dist-packages/virtualenvwrapper/hook_loader.py", line 137
        print '  %-10s -- %s' % (ep.name, inspect.getdoc(plugin) or '')
                            ^
    SyntaxError: invalid syntax

      File "/usr/local/lib/python3.2/dist-packages/virtualenvwrapper/user_scripts.py", line 40
        except OSError, msg:
                      ^
    SyntaxError: invalid syntax

Successfully installed virtualenvwrapper
Cleaning up...

Even though the last line states successfully installed I can not invoke the virtualenvwrapper commands.

Does anyone know an alternative to it that works with Python 3?

EDIT:

For anyone coming back to this question – a version that supports Python 3 has just been released: Virtualenvwrapper (30/01/2012).

Answer 1

Normally I would say “Fork it and port it”. It’s a small program, under a 1000 lines of code, most of which is written in clear and best practices by Dough Hellman. Porting it is probably going to be dead simple and a good exercise.

However in this case, all you need to do is notice in the bitbucket page that there are two pull requests waiting already, one which is a Python 3 compatibility fix. You can probably check out and use that one. https://bitbucket.org/dakra/virtualenvwrapper/overview