Use flake8 settings from setup.cfg

[datapythonista]

pep8speaks allows setting up flake8 parameters using the config option pycodestyle. For example:
https://github.com/pandas-dev/pandas/blob/master/.pep8speaks.yml#L8

But Python projects/flake8 already defines a way to specify those, which is in the flake8 section of setup.cfg. For example:
https://github.com/pandas-dev/pandas/blob/master/setup.cfg#L14

I think it'd be nice to keep the pycodestyle setting, but in case it's not present, it should look for the options in setup.cfg and use them. This way, projects don't need to maintain two different copies of the flake8 settings, and there are no mismatches in the errors the pep8speaks reports, and what the CI of the projects are linting.

[OrkoHunter]

Hello @datapythonista !

Thank you so much for the wonderful suggestion. A new release of the app has been pushed, tested and deployed with your suggestion. You can now remove the pycodestyle section from .pep8speaks.yml and it will read configurations from the [flake8] section of setup.cfg.

[datapythonista]

thanks @OrkoHunter, I created this issue in pandas, will let you know how it works: pandas-dev/pandas#25605

thank you!

[eggplants]

Now, pep8speaks seem to ignore flake8 configurations in setup.cfg.