Union types: Support narrowing to Ellipsis (...) cases of Unions
#13157
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After this change, narrowing to `Ellipsis` works similarly with regards to narrowing as `None` in `Optional`s It would be a good followup refactor to delegate some of the logic from `is_singleton_type` to the actual mypy types so they could decide for themselves if they are representing singleton objects Fixes: python#13117 Co-authored-by: Zsolt Cserna <cserna.zsolt@gmail.com>
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According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉 |
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After this change, narrowing to
Ellipsisworks similarly withregards to narrowing as
NoneinOptionalsIt would be a good followup refactor to delegate some of the logic
from
is_singleton_typeto the actual mypy types so they could decidefor themselves if they are representing singleton objects
Fixes: #13117
Co-authored-by: Zsolt Cserna cserna.zsolt@gmail.com