Narrow context fallback limitation to walrus only#21294
Merged
ilevkivskyi merged 1 commit intopython:masterfrom Apr 22, 2026
Merged
Narrow context fallback limitation to walrus only#21294ilevkivskyi merged 1 commit intopython:masterfrom
ilevkivskyi merged 1 commit intopython:masterfrom
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This was referenced Apr 22, 2026
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Diff from mypy_primer, showing the effect of this PR on open source code: graphql-core (https://github.com/graphql-python/graphql-core)
+ src/graphql/execution/execute.py:1793: error: Unused "type: ignore" comment [unused-ignore]
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Primer looks good. |
hauntsaninja
approved these changes
Apr 22, 2026
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Fixes #21273
This fixes regression caused by too cautious check in assignment context fallback. Ternary expression can change binder version, but only assignment expression can have an externally visible effect. So I add a dedicated counter to track this.