Fixed bug that results in false negative when a closed=False is use…#10860
Merged
Fixed bug that results in false negative when a closed=False is use…#10860
closed=False is use…#10860Conversation
…d in `TypedDict` that subclasses from a non-open `TypedDict` base class. This addresses #10859.
Contributor
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Diff from mypy_primer, showing the effect of this PR on open source code: sympy (https://github.com/sympy/sympy)
+ .../projects/sympy/sympy/solvers/ode/hypergeometric.py:246:67 - error: Operator "**" not supported for types "Basic" and "Literal[2]" (reportOperatorIssue)
- .../projects/sympy/sympy/solvers/ode/lie_group.py:618:61 - error: Operator "-" not supported for type "Unknown | Basic" (reportOperatorIssue)
- .../projects/sympy/sympy/solvers/ode/nonhomogeneous.py:467:28 - error: Argument of type "Unknown | None" cannot be assigned to parameter "expr" of type "Expr" in function "make_args"
+ .../projects/sympy/sympy/solvers/ode/nonhomogeneous.py:467:28 - error: Argument of type "Unknown | Expr | Any | None" cannot be assigned to parameter "expr" of type "Expr" in function "make_args"
- Type "Unknown | None" is not assignable to type "Expr"
+ Type "Unknown | Expr | Any | None" is not assignable to type "Expr"
+ .../projects/sympy/sympy/solvers/ode/ode.py:1515:38 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1516:38 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1526:9 - error: No overloads for "update" match the provided arguments (reportCallIssue)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1526:12 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1526:19 - error: Argument of type "Unknown | dict[Unknown, Unknown] | None" cannot be assigned to parameter "m" of type "Iterable[tuple[str, Unknown]]" in function "update"
+ Type "Unknown | dict[Unknown, Unknown] | None" is not assignable to type "Iterable[tuple[str, Unknown]]"
+ "None" is incompatible with protocol "Iterable[tuple[str, Unknown]]"
+ "__iter__" is not present (reportArgumentType)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1533:43 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1533:64 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1539:9 - error: No overloads for "update" match the provided arguments (reportCallIssue)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1539:12 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1539:19 - error: Argument of type "Unknown | dict[Unknown, Unknown] | None" cannot be assigned to parameter "m" of type "Iterable[tuple[str, Unknown]]" in function "update"
+ Type "Unknown | dict[Unknown, Unknown] | None" is not assignable to type "Iterable[tuple[str, Unknown]]"
+ "None" is incompatible with protocol "Iterable[tuple[str, Unknown]]"
+ "__iter__" is not present (reportArgumentType)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1546:43 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1546:74 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1552:9 - error: No overloads for "update" match the provided arguments (reportCallIssue)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1552:12 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1552:19 - error: Argument of type "Unknown | dict[Unknown, Unknown] | None" cannot be assigned to parameter "m" of type "Iterable[tuple[str, Unknown]]" in function "update"
+ Type "Unknown | dict[Unknown, Unknown] | None" is not assignable to type "Iterable[tuple[str, Unknown]]"
+ "None" is incompatible with protocol "Iterable[tuple[str, Unknown]]"
+ "__iter__" is not present (reportArgumentType)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1559:49 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1559:70 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
- .../projects/sympy/sympy/solvers/ode/ode.py:1690:36 - error: Cannot access attribute "lhs" for class "Expr"
- Attribute "lhs" is unknown (reportAttributeAccessIssue)
- .../projects/sympy/sympy/solvers/ode/ode.py:1690:55 - error: Cannot access attribute "rhs" for class "Expr"
- Attribute "rhs" is unknown (reportAttributeAccessIssue)
- .../projects/sympy/sympy/solvers/ode/ode.py:1691:36 - error: Cannot access attribute "lhs" for class "Expr"
- Attribute "lhs" is unknown (reportAttributeAccessIssue)
- .../projects/sympy/sympy/solvers/ode/ode.py:1692:17 - error: No overloads for "__setitem__" match the provided arguments (reportCallIssue)
- .../projects/sympy/sympy/solvers/ode/ode.py:1692:17 - error: Argument of type "Equality | BooleanFalse | BooleanTrue | Unknown | Expr" cannot be assigned to parameter "value" of type "Equality | BooleanFalse | BooleanTrue" in function "__setitem__"
- Type "Equality | BooleanFalse | BooleanTrue | Unknown | Expr" is not assignable to type "Equality | BooleanFalse | BooleanTrue"
- Type "Expr" is not assignable to type "Equality | BooleanFalse | BooleanTrue"
- "Expr" is not assignable to "Equality"
- "Expr" is not assignable to "BooleanFalse"
- "Expr" is not assignable to "BooleanTrue" (reportArgumentType)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3379:7 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3379:38 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3380:7 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3380:38 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3381:14 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3382:14 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3383:14 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3395:50 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3396:50 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3397:50 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3437:5 - error: No overloads for "update" match the provided arguments (reportCallIssue)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3437:7 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3437:14 - error: Argument of type "Unknown | dict[Unknown, Unknown] | None" cannot be assigned to parameter "m" of type "Iterable[tuple[str, Unknown]]" in function "update"
+ Type "Unknown | dict[Unknown, Unknown] | None" is not assignable to type "Iterable[tuple[str, Unknown]]"
+ "None" is incompatible with protocol "Iterable[tuple[str, Unknown]]"
+ "__iter__" is not present (reportArgumentType)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3438:18 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3438:43 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3439:9 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3439:16 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3439:24 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3439:31 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3440:9 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3440:15 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3440:23 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3440:30 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3441:7 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3441:46 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3441:54 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3442:9 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3442:19 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3442:29 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3443:10 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3444:10 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
... (truncated 430 lines) ...
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erictraut
added a commit
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Sep 1, 2025
* main: Changed the evaluated type of `__class__` from `type[Self]` to `type[<Enclosing class]`. This addresses #10685. (#10874) Added optimization that reduces the number of Uri objects that need to be created during type evaluation. This is an attempt to address #10832. (#10872) Fixed bug that causes a false negative when using unquoted types in a TypedDict functional class definition if the types are forward declared. This addresses #10612. (#10869) Fixed bug that resulted in false negative when backslash followed by line feed occurs at end of file. This addresses #10814. (#10867) Fixed false negative when a keyword parameter in a child class method overrides a method with a `**kwargs` in the parent and the type is incompatible. This addresses #10815. (#10866) Fixed regression introduced in 1.1.343 that results in nondeterministic (order-dependent) type evaluation under certain circumstances involving recursive type aliases. This addresses #10850. (#10865) Revert "Added support for tracking multiple constraint sets when performing protocol matching. This allows protocols with overloaded methods to contribute independent constraint sets. This addresses #9835. (#9864)" (#10863) Fixed bug that contributes to out-of-memory crashes under certain circumstances where a module's transitive import graph is very large and may not fit within the available heap space. (#10862) Bump tmp from 0.2.3 to 0.2.5 in /packages/vscode-pyright (#10824) Added support for `match_args` dataclass parameter. This addresses #10858. (#10861) Fixed bug that results in false negative when a `closed=False` is used in `TypedDict` that subclasses from a non-open `TypedDict` base class. This addresses #10859. (#10860) Revert "Reverted a recent change that appears to have affected performance on some projects. This attempts to address #10832. (#10841)" Improved performance of import resolution when there are large number… (#10855) Document editable installs with uv (#10854) Fixed a bug that results in spurious errors if a class decorator is a… (#10846) Fixed a bug that results in false positive errors when using `object` methods (like `__eq__`) on a `Sentinel` instance. This addresses #10773. (#10844) Fixed bug that results in incorrect literal math results for bitwise negation. This addresses #10834. (#10842) Reverted a recent change that appears to have affected performance on some projects. This attempts to address #10832. (#10841) pull-pylance-with-pyright-1.1.403-20250820-201137 (#10831)
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…d in
TypedDictthat subclasses from a non-openTypedDictbase class. This addresses #10859.