title: Sphinx: autodoc can`t import module
body: <p>I have following problem with sphinx.
  My project structure is</p>
  
  <pre><code>|--project
     |--api
       |--__init__.py
       |--rpc.py
       |--v1
          |--__init__.py
          |--model.py
  |--build
  |--source
    |--conf.py
  |--Makefile
  </code></pre>
  
  <p>In conf.py I Have</p>
  
  <pre><code>import os
  import sys
  sys.path.insert(0, os.path.abspath('..'))
  </code></pre>
  
  <p>If I run </p>
  
  <pre><code>pipenv run sphinx-build ./source ./build
  </code></pre>
  
  <p>I got following errors:</p>
  
  <pre><code>WARNING: autodoc: failed to import module 'api.rpc'; the following exception was raised:
  No module named 'api'
  WARNING: autodoc: failed to import module 'api'; the following exception was raised:
  No module named 'api'
  WARNING: autodoc: failed to import module 'api.v1.model'; the following exception was raised:
  No module named 'api'
  WARNING: autodoc: failed to import module 'api.v1'; the following exception was raised:
  No module named 'api'
  </code></pre>
  
  <p>Where can be problem? Thank's</p>