cfn2py needs to format better to PEP standards

[allyunion]

I have a line that does exceed the 80 character limit...

[chrisgilmerproj]

I've been using yapf to do this:

pip install yapf
cfn2py config.json > config.py
yapf -i config.py

I'm not sure its worth adding yapf as a dependency but its a pretty handy tool.