Collecting python-daemon (from zuul->-r test-requirements.txt (line 3))
  Using cached python-daemon-2.0.1.tar.gz
    Traceback (most recent call last):
      File "<string>", line 20, in <module>
      File "/tmp/pip-build-DFmgwd/python-daemon/setup.py", line 27, in <module>
        import version
      File "version.py", line 51, in <module>
        import docutils.core
    ImportError: No module named docutils.core
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
    
      File "<string>", line 20, in <module>
    
      File "/tmp/pip-build-DFmgwd/python-daemon/setup.py", line 27, in <module>
    
        import version
    
      File "version.py", line 51, in <module>
    
        import docutils.core
    
    ImportError: No module named docutils.core
    
    ----------------------------------------
    Command "python setup.py egg_info" failed with error code 1