collapsible-if (SIM102)

Added in v0.0.211 · Related issues · View source

Derived from the flake8-simplify linter.

Fix is sometimes available.

What it does

Checks for nested if statements that can be collapsed into a single if statement.

Why is this bad?

Nesting if statements leads to deeper indentation and makes code harder to read. Instead, combine the conditions into a single if statement with an and operator.

Example

if foo:
    if bar:
        ...

Use instead:

if foo and bar:
    ...

References

• Python documentation: The if statement
• Python documentation: Boolean operations