Type check global after function definition

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#538 9 comments 1 reaction 0 assignees View on GitHub

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Stale
Tech stack
python
Domain
devtools

Research direction

Start by running mypy on the Python example and confirm that the assignment to global y is accepted while x is reported. Trace the type checker's handling of global declarations after a function definition, then add coverage showing that y is also checked and verify the example produces the expected error.

Written by the indexing model from the issue text.

Description

bug priority-2-low topic-variable-scope 
import typing

x = 'Hagar Qim'

def f() -> None:
  global x, y
  x = 1  # Type error reported
  y = 2  # Ignored

y = 'Mnajdra'

No type error is reported for the assignments to y.

Dominant language
Python
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Avg merge
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Merged PRs (30d)
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