This was missed in the recent commit a1d23b6:
"Codechange: Various non-formatting related flake8 fixes"

There will only be an error here if the value isn't an integer.
The only values with defined meanings are 0 or 1, so in this case
 there's an error in the source and we should fail compilation.

Found by CodeQL.

This doesn't fix some circular-import issues that will need more
 refactoring to avoid.

Resolves all issues from the `flake8-comprehensions` plugin.

This conforms with the PEP 8 recommendations, and also sorts them
 alphabetically because it's opinionated. :p

This is the result of running `isort` and then `black`,
 unfortunately they fight with each other about formatting...

The uninitialized-variable checker doesn't understand the control flow
 well enough (in one case it's very implicit, the others are obvious).

Found by CodeQL.

This resoolves the CodeQL warning:
 Assignment overwrites attribute comment, which was previously
  defined in superclass.
 Subclasses should not set attributes that are set in the superclass.
 Doing so may violate invariants in the superclass.

This might also squash a false-positive CodeQL warning, not sure yet.

This might fix some CodeQL false-positives.