bad-whitespace.md

Pattern: Irregular whitespace

Issue: -

Description

This rule enforces whitespace usage around an operator, bracket or block opener based on PEP 8 style guide. Warning is raised when any of the following rules is violated:

• Any of the following operators is surrounded by one space: ==, !=, <>, <=, >=, <, >, =, +=, -=, *=, **=, /=, //=, &=, |=, ^=, %=, >>=, <<=
• Any opening bracket ( (, [, { ) is not followed by any space.
• Any closing bracket ( ), ], } ) is not preceded by any space.
• Any comma is not preceded by any space, and is followed by one space.
• Any block opener colon is not preceded by any space.

Example of incorrect code:

if x == 4 : print x , y ; x , y = y , x

Example of correct code:

if x == 4: print x, y; x, y = y, x

The guidelines provided by PEP 8 are intended to improve the readability of code and make it consistent across the wide spectrum of Python code.

Further Reading

• PEP 8 - Whitespace in Expressions and Statements