title: Unable to import git in python
body: <p>I am facing these issues. Can you help me with the same ?
  Why am I seeing this error ? Do I have to add anything in the requirements.txt file ?</p>
  
  <pre><code>&gt;&gt;&gt; import git
  Traceback (most recent call last):
  File "&lt;pyshell#7&gt;", line 1, in &lt;module&gt;
   import git
  File "git\__init__.py", line 29, in &lt;module&gt;
  _init_externals()
  File "git\__init__.py", line 23, in _init_externals
  raise ImportError("'gitdb' could not be found in your PYTHONPATH")
  ImportError: 'gitdb' could not be found in your PYTHONPATH
  
  &gt;&gt;&gt; from git import Repo
  Traceback (most recent call last):
  File "&lt;pyshell#8&gt;", line 1, in &lt;module&gt;
  from git import Repo
  File "git\__init__.py", line 29, in &lt;module&gt;
  _init_externals()
  File "git\__init__.py", line 23, in _init_externals
  raise ImportError("'gitdb' could not be found in your PYTHONPATH")
  ImportError: 'gitdb' could not be found in your PYTHONPATH
  </code></pre>