Remove special case for Union type context#20610
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hauntsaninja merged 3 commits intopython:masterfrom Jan 21, 2026
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Kind of reverts python#2715. The test cases in that PR still pass Fixes python#20608
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According to mypy_primer, this change doesn't affect type check results on a corpus of open source code. ✅ |
hauntsaninja
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Jan 18, 2026
| else_map, e.else_expr, context=ctx, allow_none_return=allow_none_return | ||
| ) | ||
| ctx = make_simplified_union([ctx_if_type, ctx_else_type]) | ||
| if has_ambiguous_uninhabited_component(ctx_if_type): |
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without this change, testUnificationDictWithEmptyListLeft and testUnificationDictWithEmptyListRight start failing
JukkaL
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Jan 21, 2026
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Thanks, this was a tricky one.
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Reverts some of #2715. The test cases introduced in that PR still pass
Fixes #20608
Test case minimised by A5rocks
Codex assisted in diagnosing the issue