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Reusing variable previously defined with walrus operator triggers used-before-def error #14626
Description
To Reproduce
x = 3
z = (y := str(x)).index(y.lower())Expected Behavior
Should be no errors -- this code does not error using mypy v0.991 or prior, so this seems to be a new issue with v1.0.0.
Actual Behavior
error: Name "y" is used before definition [used-before-def]
Your Environment
- Mypy version used: 1.0.0
- Mypy command-line flags: none
- Python version used: 3.9
Activity
ilinum commentedon Feb 8, 2023
Thanks for reporting! We will include the fix in the 1.0.1 release.
[used before def] correctly handle walrus operator (#14646)
[used before def] correctly handle walrus operator (python#14646)
[used before def] correctly handle walrus operator (python#14646)
[backport] [used before def] correctly handle walrus operator (#14646) (