ModuleNotFoundError: No module named 'gunicorn.six' (python2 and python3)

[bluszcz]

Hello, I am setting up the oncall to give it a try.

I switched to py3 branch, followed the docs and running into following error:

oncall-dev ./configs/config.yaml
Traceback (most recent call last):
  File "/home/oncall/.virtualenvs/p3-oncall/bin/oncall-dev", line 11, in <module>
    load_entry_point('oncall', 'console_scripts', 'oncall-dev')()
  File "/home/oncall/.virtualenvs/p3-oncall/lib/python3.6/site-packages/pkg_resources/__init__.py", line 480, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/home/oncall/.virtualenvs/p3-oncall/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2693, in load_entry_point
    return ep.load()
  File "/home/oncall/.virtualenvs/p3-oncall/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2324, in load
    return self.resolve()
  File "/home/oncall/.virtualenvs/p3-oncall/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2330, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/home/oncall/oncall/src/oncall/bin/run_server.py", line 10, in <module>
    from gunicorn.six import iteritems
ModuleNotFoundError: No module named 'gunicorn.six'
Makefile:4: recipe for target 'serve' failed
make: *** [serve] Error 1