Under Windows, when running test-cases creating different temporary repositories consecutively, I get sporadic failures when executing thegit process:

 File "D:\Apps\WinPython-64bit-3.5.2.1\python-3.5.2.amd64\lib\site-packages\git\repo\base.py", line 872, in init    git.init(**kwargs)  File "D:\Apps\WinPython-64bit-3.5.2.1\python-3.5.2.amd64\lib\site-packages\git\cmd.py", line 466, in <lambda>    return lambda *args, **kwargs: self._call_process(name, *args, **kwargs)  File "D:\Apps\WinPython-64bit-3.5.2.1\python-3.5.2.amd64\lib\site-packages\git\cmd.py", line 910, in _call_process    return self.execute(make_call(), **_kwargs)  File "D:\Apps\WinPython-64bit-3.5.2.1\python-3.5.2.amd64\lib\site-packages\git\cmd.py", line 630, in execute    raise GitCommandNotFound(str(err))git.exc.GitCommandNotFound: [WinError 6] The handle is invalid

• Digging a bit further, I noticed that before executing the failingPopen(), thesubprocess._active list contains 2 leftovers processes, while this list is always empty when not failing.
• I tried to add some delays withtime.sleep() but it did not help.
• It did help when I simplified my test-cases, i.e. dropping some commit actions.
• Tested under:
  • Windows 10,
  • WinPython 3.5.2:
  • gitpython: both latest in PyPiv2.0.8 and latest master from github(df65f51) (2.0.9-dev0).
  • smmap:0.9.0
  • gitdb:0.6.4

An minor note: the try-catchPopen() code assumes that any exception caught is becausegit was not found, while above it obviously not the case.