Repository Issue Activity (beta)

python/mypy

Current issue state, recent activity, and per-issue timelines from the indexed issue data.

Open Issues
1,076
New in 7 Days
13
Closed in 7 Days
4
Average Open Age
813 days
Stale 30+ Days
940
Stale 90+ Days
815
Last 2 Weeks
DateOpenedClosedCommentsEventsOpen Backlog
2026-09-0700000
2026-09-06214144
2026-09-051142111
2026-09-0430284
2026-09-0320263
2026-09-0200341070
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2026-08-2510000
This Week

Opened: 12

Closed: 3

Comments: 15

Events: 53

Top Labels
bug (1881)
feature (435)
crash (236)
topic-type-narrowing (179)
topic-type-variables (137)
priority-1-normal (129)
false-positive (83)
topic-match-statement (76)
Issue Explorer
IssueAuthorStateLabelsCommentsReactionsUpdated

#21940 `typing.Protocol` is explicitly treated as not a `type`

Opened 3 days ago
chet-manley
open
bug
topic-runtime-semantics
2018 hours ago

#21948 New parser deviates from old parser in edge cases with function type comments

Opened 22 hours ago
ilevkivskyi
open
bug
0022 hours ago

#21947 Errors from new parser can be worse (compared to old parser)

Opened 22 hours ago
ilevkivskyi
open
bug
0022 hours ago

#21944 match statement of callable enums thinks they aren't callable

Opened 2 days ago
Verpous
closed - duplicate
bug
topic-enum
101 day ago

#21477 Detect number of CPUs with `--num-workers auto`

Opened 4 months ago
hugovk
open
feature
parallel checking
511 day ago

#17937 Incompatible types when calling generinc `__init__` from generic `@classmethod`

Opened 2 years ago
bjoernpollex
open
bug
322 days ago

#21910 Union(Type) and TypeForm

Opened 9 days ago
zedzhen
open
bug
topic-runtime-semantics
002 days ago

#21915 Internal error on mypy of `dataclass` with `TypedDict` as `ClassVar`

Opened 7 days ago
Dutcho
open
crash
topic-dataclasses
102 days ago

#21917 mypy errors on self: Annotated[Self, "tag"]

Opened 6 days ago
Moussa-Mikhail
open
bug
topic-self-types
102 days ago

#21922 PEP 695: type parameter bound referencing an earlier type parameter in the same list fails with "Name ... is not defined"

Opened 6 days ago
yobuntu
closed - not_planned
bug
102 days ago

#21923 [mypyc] Design discussion: build-system-neutral C generation CLI (mypyc cgen) for projects not using setuptools

Opened 6 days ago
trim21
open
feature
topic-mypyc
102 days ago

#21925 Irrefutable pattern before the last case in a match statement passes type checking but is a SyntaxError at runtime

Opened 6 days ago
haeganm
open
bug
topic-reachability
002 days ago

#21937 Incorrect narrowing of Enum.Flag

Opened 3 days ago
zedzhen
open - reopened
bug
topic-enum
topic-type-narrowing
202 days ago

#21938 mypyc silently drops class keyword arguments

Opened 3 days ago
quiet-lab
open
bug
topic-runtime-semantics
topic-mypyc
002 days ago

#21935 2.4 Release Planning

Opened 4 days ago
KevinRK29
open
meta
203 days ago

#21933 Crash on unpacked tuple in tuple type definition

Opened 4 days ago
dzsaska
open
crash
topic-pep-646
104 days ago

#21489 Support PEP 798

Opened 4 months ago
hauntsaninja
open
feature
205 days ago

#21780 match does not infer never with None followed by Literal

Opened 1 month ago
haroldbruintjes
closed - completed
bug
106 days ago

#21907 "INTERNAL_ERROR": generic fun w/ Callable param w/ constrained return type followed by `*args` typed as `*Tuple[int, float]` crashes mypy

Opened 10 days ago
willy-b
open
crash
207 days ago

#21365 Get rid of the "flipping behaviour" in narrowign by equality/identity

Opened 4 months ago
ilevkivskyi
open
needs discussion
topic-type-narrowing
307 days ago

#21902 Mypy is reporting incorrect line numbers on a 2.7kloc files.

Opened 10 days ago
fjovell-swish
closed - completed
bug
307 days ago

#21905 tests testoutput.py::OutputJSONsuite can be flaky on high-core-count systems

Opened 10 days ago
mr-c
open
bug
topic-developer
parallel checking
008 days ago

#21906 Mypy treating type of final class variable in dataclass as Any

Opened 10 days ago
ipilcher
open - reopened
bug
609 days ago

#21904 `get_function_signature_hook` is not invoked on function decorators

Opened 10 days ago
ZeeD
open
bug
topic-plugins
0010 days ago

#21903 `mypy` widens multiple type parameters even when only the first one is relevant

Opened 10 days ago
cmp0xff
open
bug
topic-inference
0010 days ago

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