fix(pytree): initialize bracket_depth in Leaf __init__ - #5267
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This was referenced Jul 28, 2026
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@amir-rezaei This PR needs a new test case added to tests/data/cases. The crashing code is provided in the original issue. |
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Description
Fixes #5214, closes #5221, closes #5215
This PR resolves issue #5214 by initializing
bracket_depth: int = 0inLeaf.__init__()and as a class attribute insrc/blib2to3/pytree.py.Details
AttributeError: 'Leaf' object has no attribute 'bracket_depth'when processing newly constructedLeafinstances during line formatting.