PyCQA / PyCQA/pyflakes

global keyword removes undefined variable warning

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Dominant language
Python
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Description

def test():
    return x

gives test.py:2:12 undefined name 'x' as expected, but

def test():
    global x
    return x

gives no warnings.

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by running the two Python snippets through pyflakes, then trace the global-declaration handling that suppresses undefined-name reporting. Done means the expected warning behavior is restored and covered by a regression test.

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
38/100

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