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Sync typeshed - #15681
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Sync typeshed#15681
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Source commit: python/typeshed@a83e559
This is allegedly causing large performance problems, see 13821 typeshed/8231 had zero hits on mypy_primer, so it's not the worst thing to undo. Patching this in typeshed also feels weird, since there's a more general soundness issue. If a typevar has a bound or constraint, we might not want to solve it to a Literal. If we can confirm the performance regression or fix the unsoundness within mypy, I might pursue upstreaming this in typeshed. (Reminder: add this to the sync_typeshed script once merged)
Since the plugin provides superior type checking: python#13987 (comment) A manual cherry-pick of e437cdf.
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Diff from mypy_primer, showing the effect of this PR on open source code: prefect (https://github.com/PrefectHQ/prefect)
- src/prefect/utilities/templating.py:143: error: Incompatible types in assignment (expression has type "str", variable has type "dict[Any, Any]") [assignment]
- src/prefect/utilities/templating.py:145: error: Incompatible types in assignment (expression has type "str", variable has type "dict[Any, Any]") [assignment]
- src/prefect/utilities/templating.py:294: error: Incompatible types in assignment (expression has type "str", variable has type "dict[Any, Any]") [assignment]
- src/prefect/utilities/templating.py:296: error: Incompatible types in assignment (expression has type "str", variable has type "dict[Any, Any]") [assignment]
streamlit (https://github.com/streamlit/streamlit)
- lib/tests/streamlit/config_test.py:619:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "return_value" [attr-defined]
+ lib/tests/streamlit/config_test.py:619:9: error: "_patch_default_new" has no attribute "return_value" [attr-defined]
- lib/tests/streamlit/config_test.py:621:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "side_effect" [attr-defined]
+ lib/tests/streamlit/config_test.py:621:9: error: "_patch_default_new" has no attribute "side_effect" [attr-defined]
- lib/tests/streamlit/config_test.py:645:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "return_value" [attr-defined]
+ lib/tests/streamlit/config_test.py:645:9: error: "_patch_default_new" has no attribute "return_value" [attr-defined]
- lib/tests/streamlit/config_test.py:647:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "side_effect" [attr-defined]
+ lib/tests/streamlit/config_test.py:647:9: error: "_patch_default_new" has no attribute "side_effect" [attr-defined]
- lib/tests/streamlit/config_test.py:683:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "return_value" [attr-defined]
+ lib/tests/streamlit/config_test.py:683:9: error: "_patch_default_new" has no attribute "return_value" [attr-defined]
- lib/tests/streamlit/config_test.py:685:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "side_effect" [attr-defined]
+ lib/tests/streamlit/config_test.py:685:9: error: "_patch_default_new" has no attribute "side_effect" [attr-defined]
- lib/tests/streamlit/config_test.py:731:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "return_value" [attr-defined]
+ lib/tests/streamlit/config_test.py:731:9: error: "_patch_default_new" has no attribute "return_value" [attr-defined]
- lib/tests/streamlit/config_test.py:733:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "side_effect" [attr-defined]
+ lib/tests/streamlit/config_test.py:733:9: error: "_patch_default_new" has no attribute "side_effect" [attr-defined]
- lib/tests/streamlit/config_test.py:757:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "return_value" [attr-defined]
+ lib/tests/streamlit/config_test.py:757:9: error: "_patch_default_new" has no attribute "return_value" [attr-defined]
- lib/tests/streamlit/config_test.py:759:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "side_effect" [attr-defined]
+ lib/tests/streamlit/config_test.py:759:9: error: "_patch_default_new" has no attribute "side_effect" [attr-defined]
- lib/tests/streamlit/config_test.py:793:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "return_value" [attr-defined]
+ lib/tests/streamlit/config_test.py:793:9: error: "_patch_default_new" has no attribute "return_value" [attr-defined]
- lib/tests/streamlit/config_test.py:795:9: error: "_patch[Union[MagicMock, AsyncMock]]" has no attribute "side_effect" [attr-defined]
+ lib/tests/streamlit/config_test.py:795:9: error: "_patch_default_new" has no attribute "side_effect" [attr-defined]
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Source commit: python/typeshed@a83e559
More merge conflicts meant the automated PR failed last night: https://github.com/python/mypy/actions/runs/5559314225