$ rm -rf ~/tmp/test_gitpython; virtualenv ~/tmp/test_gitpython; ~/tmp/test_gitpython/bin/pip install  gitpython==2.0.9.dev0; ~/tmp/test_gitpython/bin/python -c 'import git'
New python executable in /home/desbonne/tmp/test_gitpython/bin/python
Please make sure you remove any previous custom paths from your /home/desbonne/.pydistutils.cfg file.
Installing setuptools, pip, wheel...done.
Collecting gitpython==2.0.9.dev0
  Using cached GitPython-2.0.9.dev0-py2.py3-none-any.whl
Collecting gitdb>=0.6.4 (from gitpython==2.0.9.dev0)
Collecting smmap>=0.8.5 (from gitdb>=0.6.4->gitpython==2.0.9.dev0)
Installing collected packages: smmap, gitdb, gitpython
Successfully installed gitdb-0.6.4 gitpython-2.0.9.dev0 smmap-0.9.0
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/desbonne/tmp/test_gitpython/local/lib/python2.7/site-packages/git/__init__.py", line 36, in <module>
    from git.objects import *               # @NoMove @IgnorePep8
  File "/home/desbonne/tmp/test_gitpython/local/lib/python2.7/site-packages/git/objects/__init__.py", line 11, in <module>
    from .commit import *
  File "/home/desbonne/tmp/test_gitpython/local/lib/python2.7/site-packages/git/objects/commit.py", line 17, in <module>
    from .tree import Tree
  File "/home/desbonne/tmp/test_gitpython/local/lib/python2.7/site-packages/git/objects/tree.py", line 13, in <module>
    from .submodule.base import Submodule
  File "/home/desbonne/tmp/test_gitpython/local/lib/python2.7/site-packages/git/objects/submodule/base.py", line 42, in <module>
    from git.test.lib.helper import HIDE_WINDOWS_KNOWN_ERRORS
  File "/home/desbonne/tmp/test_gitpython/local/lib/python2.7/site-packages/git/test/lib/__init__.py", line 9, in <module>
    from .asserts import *
  File "/home/desbonne/tmp/test_gitpython/local/lib/python2.7/site-packages/git/test/lib/asserts.py", line 10, in <module>
    from nose.tools import (
ImportError: No module named nose.tools

$ rm -rf ~/tmp/test_gitpython; virtualenv ~/tmp/test_gitpython >/dev/null; ~/tmp/test_gitpython/bin/pip install git-upstream | grep 'Collecting GitPython'
Collecting GitPython!=0.3.2,>=0.3.2.RC1 (from git-upstream)