Typing

Topic	Replies	Views	Activity
2026 Python Type System and Tooling Survey is out! typing , survey The 2026 Python Type System and Tooling Survey is out! Take the survey here: Python Type System and Tooling Survey 2026 (or scan the QR code attached at the end). I also want to say a huge thank-you to the folks who co…	2	384	August 7, 2026
About the Typing category	2	1596	October 17, 2023
Using classes as `dataclass_transform` `field_specifiers`	2	863	August 17, 2026
Spec change proposal: updating/clarifying rules for unpacking TypedDicts in function calls	4	132	August 16, 2026
Define a variadic return value	3	301	August 11, 2026
Clarifying that type checkers should not emit diagnostics in `if not TYPE_CHECKING`	14	709	August 8, 2026
Proposal: allow chaining @final decorator when previous decorators return a non-function	5	300	August 7, 2026
Spec change: Do not require an error for a generic class attribute	1	134	August 7, 2026
Call for Typing Council nominations – July 2026	7	673	August 6, 2026
Looking for draft feedback: Python Typing Survey 2026 typing , feedback , survey	18	658	August 5, 2026
How to decide when to use typing.IO or io.IOBase? help	2	203	August 4, 2026
Spec: metaclass constructors	0	143	July 31, 2026
Treat Literal of all elements of enum equal to the enum in type annotations help	6	289	July 30, 2026
Typing Meetup: July 22nd, 2026 10am PDT	3	394	July 23, 2026
[withdrawn] A decorator to mark AI-assisted code	5	367	July 23, 2026
Allow abstract classes to be assigned to `type[Proto]`?	18	434	July 17, 2026
Interactions with Never leading to undesirable assignability	48	1636	July 16, 2026
Clarifying the float/int/complex special case typing-spec	82	5607	July 15, 2026
Allowing specializing a bound, covariant `TypeVar` with a `Protocol` as a limited form of intersection typing	5	444	July 14, 2026
Conditional imports in stub files	5	1588	July 14, 2026
Proposal: typing.TypeExclude for subtractive/exclusion types typing	12	480	July 6, 2026
Should type(x) == T result in narrowing? (Is type(x) is T better?) typing	3	397	July 6, 2026
Implicit narrowing for immutable containers? (`tuple`, `NamedTuple`, frozen dataclass) typing	2	318	July 4, 2026
Generic function but no `object`	6	265	July 3, 2026
Shorthand syntax for Annotated (Type @ [metadata])	47	2242	June 19, 2026
Proposal: allow extending `warnings.deprecated`	2	192	June 18, 2026
How to annotate the argument type for method `write`? help , typing	2	240	June 17, 2026
Spec: `TypedDict` and `isinstance(obj, dict)` narrowing	27	598	June 16, 2026
Introduce a TypedMapping (analog to TypedDict but frozen)	10	1540	June 11, 2026
Using `@deprecated` for all overloads in stubs typing , typing-spec	31	976	June 7, 2026

2026 Python Type System and Tooling Survey is out!

typing , survey

The 2026 Python Type System and Tooling Survey is out! Take the survey here: Python Type System and Tooling Survey 2026 (or scan the QR code attached at the end). I also want to say a huge thank-you to the folks who co…