issue_comments: 1266112842
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| html_url | issue_url | id | node_id | user | created_at | updated_at | author_association | body | reactions | performed_via_github_app | issue |
|---|---|---|---|---|---|---|---|---|---|---|---|
| https://github.com/pydata/xarray/pull/7052#issuecomment-1266112842 | https://api.github.com/repos/pydata/xarray/issues/7052 | 1266112842 | IC_kwDOAMm_X85Ld1lK | 43316012 | 2022-10-03T22:02:12Z | 2022-10-04T10:13:00Z | COLLABORATOR | wait.... did mypy 0.981 change the behavior of overloads with None and Hashable? I now get errors for ```python from typing import Hashable @overload def x(a: Hashable) -> Hashable: ... @overload def x(a: None = None) -> None: ... def x(a: Hashable | None = None) -> Hashable | None: return a ``` but this works with 0.971. I cannot find anything on the changelog... Interesting that does not break other things in xarray since None is always treated differently! (In theory mypy is right, since None is actually hashable...) Edit: see https://github.com/python/mypy/issues/13805, adding some type: ignore for this is the "solution" |
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