PEP8 Compliant Code

[easyCZ]

PEP8 Compliant Code

[easyCZ]

I've fixed most of the issues but just to recap:

Classes are preceded by 2 empty lines.
Class methods are separated by 1 empty line.
Methods outside a class are separated by 2 empty lines.

Each comma is followed by a space.
Logical operators are separated by a space.
Operators such as + and - do not require a space, however, it is recommended.

Line length should be 80 characters, this is a bit too strict for complex logic and is generally allowed to go to 100 chars.

Readability beats efficiency of code style in the long run.