Non-functional python code style fixes

[dmitrygribenchuk]

Hello. Here is non-functional code-style fixes for python

[ellensp]

This sort of PR is frowned upon
1 because it doesn't fix anything
2 because the next person along will decide that your style of formatting is incorrect and changes it to something else. And we spend all our time going around in circles with formatting wars vs actually doing something productive.

So please justify why """ is better than '''' when they are both functionally equivalent?
And why a space is needed as the first character of a comment?

Because your editor says so it not a valid argument, not everyone uses the same editor.