A lot of PEP8 errors occur on opening up a Python file in an editor with PEP8 checks enabled.

Fixing these would greatly improve code quality, and help with easy maintenance.

I would like to work on this one, please.

packages/matplotlib/backends/backend_tkagg.py", line 6, in
2018-02-27T04:11:03.474771+00:00 app[web.1]: return _import_module(self.mod)
2018-02-27T04:11:03.474806+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/six.py", line 82, in _import_module
2018-02-27T04:11:03.475004+00:00 app[web.1]: import(name)
2018-02-27T04:11:03.475039+00:00 app[web.1]: