Sync typeshed #19664
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Sync typeshed #19664
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Source commit: python/typeshed@554701e
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)
… 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: urllib3 (https://github.com/urllib3/urllib3)
+ src/urllib3/util/ssl_.py:139: error: Cannot assign to final name "OP_NO_COMPRESSION" [misc]
+ src/urllib3/util/ssl_.py:139: note: Error code "misc" not covered by "type: ignore" comment
+ src/urllib3/util/ssl_.py:140: error: Cannot assign to final name "OP_NO_TICKET" [misc]
+ src/urllib3/util/ssl_.py:140: note: Error code "misc" not covered by "type: ignore" comment
+ src/urllib3/util/ssl_.py:141: error: Cannot assign to final name "OP_NO_SSLv2" [misc]
+ src/urllib3/util/ssl_.py:141: note: Error code "misc" not covered by "type: ignore" comment
+ src/urllib3/util/ssl_.py:142: error: Cannot assign to final name "OP_NO_SSLv3" [misc]
+ src/urllib3/util/ssl_.py:142: note: Error code "misc" not covered by "type: ignore" comment
+ src/urllib3/util/ssl_.py:143: error: Cannot assign to final name "PROTOCOL_TLS" [misc]
+ src/urllib3/util/ssl_.py:143: note: Error code "misc" not covered by "type: ignore" comment
+ src/urllib3/util/ssl_.py:144: error: Cannot assign to final name "PROTOCOL_TLS_CLIENT" [misc]
+ src/urllib3/util/ssl_.py:144: note: Error code "misc" not covered by "type: ignore" comment
+ src/urllib3/util/ssl_.py:146: error: Cannot assign to final name "VERIFY_X509_STRICT" [misc]
+ src/urllib3/util/ssl_.py:146: note: Error code "misc" not covered by "type: ignore" comment
discord.py (https://github.com/Rapptz/discord.py)
- discord/ext/commands/hybrid.py:834: error: Overlap between argument names and ** TypedDict items: "name", "with_app_command" [misc]
+ discord/ext/commands/hybrid.py:834: error: Overlap between argument names and ** TypedDict items: "with_app_command", "name" [misc]
- discord/ext/commands/hybrid.py:858: error: Overlap between argument names and ** TypedDict items: "name", "with_app_command" [misc]
+ discord/ext/commands/hybrid.py:858: error: Overlap between argument names and ** TypedDict items: "with_app_command", "name" [misc]
- discord/ext/commands/hybrid.py:883: error: Overlap between argument names and ** TypedDict items: "name", "with_app_command" [misc]
+ discord/ext/commands/hybrid.py:883: error: Overlap between argument names and ** TypedDict items: "with_app_command", "name" [misc]
- discord/ext/commands/hybrid.py:935: error: Overlap between argument names and ** TypedDict items: "name", "with_app_command" [misc]
+ discord/ext/commands/hybrid.py:935: error: Overlap between argument names and ** TypedDict items: "with_app_command", "name" [misc]
- discord/ext/commands/bot.py:291: error: Overlap between argument names and ** TypedDict items: "name", "with_app_command" [misc]
+ discord/ext/commands/bot.py:291: error: Overlap between argument names and ** TypedDict items: "with_app_command", "name" [misc]
- discord/ext/commands/bot.py:315: error: Overlap between argument names and ** TypedDict items: "name", "with_app_command" [misc]
+ discord/ext/commands/bot.py:315: error: Overlap between argument names and ** TypedDict items: "with_app_command", "name" [misc]
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Mypy primer hits
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JukkaL
pushed a commit
that referenced
this pull request
Aug 15, 2025
Discovered in #19664 (comment). Sets are unsorted which could make the primer output differ unnecessarily.
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Source commit:
python/typeshed@554701e