Carl Meyer 3179b05221 [ty] don't assume in diagnostic messages that a TypedDict key error is about subscript access (#21166) ... ## Summary Before this PR, we would emit diagnostics like "Invalid key access" for a TypedDict literal with invalid key, which doesn't make sense since there's no "access" in that case. This PR just adjusts the wording to be more general, and adjusts the documentation of the lint rule too. I noticed this in the playground and thought it would be a quick fix. As usual, it turned out to be a bit more subtle than I expected, but for now I chose to punt on the complexity. We may ultimately want to have different rules for invalid subscript vs invalid TypedDict literal, because an invalid key in a TypedDict literal is low severity: it's a typo detector, but not actually a type error. But then there's another wrinkle there: if the TypedDict is `closed=True`, then it _is_ a type error. So would we want to separate the open and closed cases into separate rules, too? I decided to leave this as a question for future. If we wanted to use separate rules, or use specific wording for each case instead of the generalized wording I chose here, that would also involve a bit of extra work to distinguish the cases, since we use a generic set of functions for reporting these errors. ## Test Plan Added and updated mdtests.		2025-10-31 10:49:59 -04:00
..
annotations	[ty] Infer type of self for decorated methods and properties (#21123)	2025-10-29 21:22:38 +00:00
assignment	[ty] Prefer declared type for invariant collection literals (#20927)	2025-10-16 16:11:28 -04:00
binary	[ty] Sync vendored typeshed stubs (#20876)	2025-10-15 11:13:32 +02:00
boolean
boundness_declaredness	[ty] Reformulation of public symbol inference test suite (#20667)	2025-10-01 14:26:17 +02:00
call	[ty] Fix lookup of __new__ on instances (#21147)	2025-10-30 13:42:46 -04:00
class	[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)	2025-10-27 11:19:12 +00:00
comparison
comprehensions	[ty] Use range instead of custom IntIterable (#21138)	2025-10-30 15:21:55 +01:00
conditional
dataclasses	[ty] Fix generic inference for non-dataclass inheriting from generic dataclass (#21159)	2025-10-31 13:55:17 +01:00
declaration
diagnostics	[ty] continue and break statements outside loops are syntax errors (#20944)	2025-10-17 17:13:40 +00:00
directives	[ty] Use annotated parameters as type context (#20635)	2025-10-03 17:14:51 -04:00
doc
exception	[ty] Filter out revealed-type and undefined-reveal diagnostics from mdtest snapshots (#20820)	2025-10-12 18:39:32 +00:00
expression	[ty] Delegate truthiness inference of an enum Literal type to its enum-instance supertype (#21060)	2025-10-24 14:34:16 +01:00
function
generics	[ty] Reformat constraint set mdtests (#21111)	2025-10-28 14:59:49 -04:00
ide_support	[ty] Filter out revealed-type and undefined-reveal diagnostics from mdtest snapshots (#20820)	2025-10-12 18:39:32 +00:00
import	[ty] Support implicit imports of submodules in __init__.pyi (#20855)	2025-10-31 14:29:24 +00:00
literal	[ty] Treat functions, methods, and dynamic types as function-like Callables (#20842)	2025-10-13 15:21:55 +02:00
loops	[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)	2025-10-27 11:19:12 +00:00
narrow	[ty] Use the top materialization of classes for narrowing in class-patterns for match statements (#21150)	2025-10-30 20:44:51 +00:00
regression	[ty] Fix rare panic with highly cyclic TypeVar definitions (#21059)	2025-10-24 18:30:54 +02:00
scopes	[ty] Improve error messages for unresolved attribute diagnostics (#20963)	2025-10-19 10:58:25 +01:00
shadowing
snapshots	[ty] don't assume in diagnostic messages that a TypedDict key error is about subscript access (#21166)	2025-10-31 10:49:59 -04:00
stubs	[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)	2025-10-27 11:19:12 +00:00
subscript	[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)	2025-10-27 11:19:12 +00:00
suppressions	[ty] Add suggestion to unknown rule diagnostics, rename unknown-rule lint to ignore-comment-unknown-rule (#20948)	2025-10-18 12:44:21 +02:00
type_compendium	[ty] Heterogeneous unpacking support for unions (#20377)	2025-10-15 19:30:03 +01:00
type_of	[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)	2025-10-27 11:19:12 +00:00
type_properties	[ty] Update "constraint implication" relation to work on constraints between two typevars (#21068)	2025-10-30 16:11:04 -04:00
type_qualifiers	[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)	2025-10-27 11:19:12 +00:00
unary
with	[ty] Use typing.Self for the first parameter of instance methods (#20517)	2025-09-29 21:08:08 +02:00
.mdformat.toml
async.md
attributes.md	[ty] Use range instead of custom IntIterable (#21138)	2025-10-30 15:21:55 +01:00
bidirectional.md	[ty] Use constructor parameter types as type context (#21054)	2025-10-24 20:14:18 +00:00
classes.md	[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)	2025-10-27 11:19:12 +00:00
cycle.md	[ty] Avoid ever-growing default types (#20991)	2025-10-21 19:13:36 +02:00
decorators.md
del.md	[ty] No union with Unknown for module-global symbols (#20664)	2025-10-01 16:40:30 +02:00
deprecated.md
descriptor_protocol.md	[ty] Infer type for implicit self parameters in method bodies (#20922)	2025-10-23 09:34:39 +02:00
enums.md	[ty] Enums: allow multiple aliases to point to the same member (#20669)	2025-10-01 15:51:53 +02:00
exhaustiveness_checking.md	[ty] Use the top materialization of classes for narrowing in class-patterns for match statements (#21150)	2025-10-30 20:44:51 +00:00
final.md
implicit_type_aliases.md
instance_layout_conflict.md
intersection_types.md
invalid_syntax.md
known_constants.md
mdtest_config.md
mdtest_custom_typeshed.md
metaclass.md
mro.md	[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)	2025-10-27 11:19:12 +00:00
named_tuple.md	[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)	2025-10-27 11:19:12 +00:00
overloads.md	[ty] Infer type of self for decorated methods and properties (#21123)	2025-10-29 21:22:38 +00:00
pep613_type_aliases.md	[ty] Fall back to Divergent for deeply nested specializations (#20988)	2025-10-22 14:29:10 +02:00
pep695_type_aliases.md	[ty] Add cycle handling to lazy_default (#20967)	2025-10-23 10:05:08 +02:00
properties.md
protocols.md	[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)	2025-10-27 11:19:12 +00:00
public_types.md	[ty] Disambiguate classes that live in different modules but have the same fully qualified names (#20756)	2025-10-08 18:27:40 +01:00
statically_known_branches.md	[ty] Rename "possibly unbound" diagnostics to "possibly missing" (#20492)	2025-09-23 14:26:55 +00:00
sys_platform.md
sys_version_info.md
t_strings.md
terminal_statements.md
ty_extensions.md	[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)	2025-10-27 11:19:12 +00:00
typed_dict.md	[ty] don't assume in diagnostic messages that a TypedDict key error is about subscript access (#21166)	2025-10-31 10:49:59 -04:00
union_types.md	[ty] Introduce TypeRelation::Redundancy (#20602)	2025-10-03 18:35:30 +01:00
unpacking.md
unreachable.md	[ty] Rename "possibly unbound" diagnostics to "possibly missing" (#20492)	2025-09-23 14:26:55 +00:00