tox support

Hi, thanks for this awesome package. It look really promising.

Here’s my problem: I am using tox and pyproject.toml for my library. When trying to use them together that’s what happens:

» tox
ERROR: No setup.py file found. The expected location is:
  /Users/sobolev/Documents/github/mimesis-factory/setup.py
You can
  1. Create one:
     https://packaging.python.org/tutorials/distributing-packages/#setup-py
  2. Configure tox to avoid running sdist:
     http://tox.readthedocs.io/en/latest/example/general.html#avoiding-expensive-sdist

What is the recommended solution for this workflow? The only thing that I do not want to do is returning to the old setup.py.

[sdispater]

For now, you can use poetry with tox by using something similar to what I did in pendulum: https://github.com/sdispater/pendulum/blob/master/tox.ini

[cs01]

@valignatev this was suggested in https://github.com/sdispater/poetry/issues/191