Comment 0 for bug 1704691

Currently, fuxi does not have pep8 hacking checks. As the result of it, there is a lot code does not follow OpenStack recommended code conventions, such as:

- [N521] Validate that jsonutils module is used instead of json
- [N529] Method's default argument shouldn't be mutable
- [N537] Don't translate logs.

We should add pep8 hacking checks implementation to clean up the code and importantly, prevent future mistakes.