Improve performance for errors on class with many attributes #14379
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When checking manticore with `--check-untyped-defs`, this is a 4x total speedup from master, from ~320s to ~80s. I looked into this because of python/typeshed#9443 (comment)
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cc @AlexWaygood |
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Diff from mypy_primer, showing the effect of this PR on open source code: sublime_debugger (https://github.com/daveleroy/sublime_debugger)
- modules/views/breakpoints_panel.py:72: error: "object" has no attribute "__iter__"; maybe "__str__" or "__dir__"? (not iterable) [attr-defined]
+ modules/views/breakpoints_panel.py:72: error: "object" has no attribute "__iter__"; maybe "__dir__" or "__str__"? (not iterable) [attr-defined]
discord.py (https://github.com/Rapptz/discord.py)
- discord/app_commands/models.py:198: error: "object" has no attribute "__iter__"; maybe "__str__" or "__dir__"? (not iterable) [attr-defined]
+ discord/app_commands/models.py:198: error: "object" has no attribute "__iter__"; maybe "__dir__" or "__str__"? (not iterable) [attr-defined]
- discord/app_commands/models.py:867: error: "object" has no attribute "__iter__"; maybe "__str__" or "__dir__"? (not iterable) [attr-defined]
+ discord/app_commands/models.py:867: error: "object" has no attribute "__iter__"; maybe "__dir__" or "__str__"? (not iterable) [attr-defined]
- discord/app_commands/models.py:868: error: "object" has no attribute "__iter__"; maybe "__str__" or "__dir__"? (not iterable) [attr-defined]
+ discord/app_commands/models.py:868: error: "object" has no attribute "__iter__"; maybe "__dir__" or "__str__"? (not iterable) [attr-defined]
- discord/app_commands/models.py:966: error: "object" has no attribute "__iter__"; maybe "__str__" or "__dir__"? (not iterable) [attr-defined]
+ discord/app_commands/models.py:966: error: "object" has no attribute "__iter__"; maybe "__dir__" or "__str__"? (not iterable) [attr-defined]
- discord/channel.py:2970: error: "object" has no attribute "__iter__"; maybe "__str__" or "__dir__"? (not iterable) [attr-defined]
+ discord/channel.py:2970: error: "object" has no attribute "__iter__"; maybe "__dir__" or "__str__"? (not iterable) [attr-defined]
streamlit (https://github.com/streamlit/streamlit)
- lib/tests/streamlit/elements/exception_test.py:87:13: error: Module has no attribute "format"; maybe "form"? [attr-defined]
+ lib/tests/streamlit/elements/exception_test.py:87:13: error: Module has no attribute "format" [attr-defined]
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When checking manticore with
--check-untyped-defs, this is a 4x total speedup from master, from ~320s to ~80s (uncompiled).I looked into this because of python/typeshed#9443 (comment)