PyCQA / PyCQA/pycodestyle

Nested indents are not correctly validated

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Python
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Description

Indentation in nested structures such as

foo(very_long_name_of_first_argument, [
    'item1', 'item2', 'item3'])

are not marked as incorrect.

Even though PEP8 doesn't explicitly states this case, it's clear conflict of two indentations - outer (function args) and inner (second argument).

Correctly should be aligned

foo(very_long_name_of_first_argument,
    ['item1', 'item2', 'item3'])

or

foo(very_long_name_of_first_argument, [
        'item1',
        'item2',
        'item3',
    ])

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First steps

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Research direction

The repository is a single Python file, but the issue names no specific file or test. Locate the indentation-validation logic, reproduce the nested examples, and add regression coverage showing that the incorrect nesting is rejected while the two aligned forms remain accepted.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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