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collapsible-if (SIM102)#

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.


if foo:
    if bar:

Use instead:

if foo and bar: