Fixed bug that results in incorrect behavior when a type variable is … #10563
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…used to define the `extra_items` type for a generic TypedDict. This addresses #10545.
erictraut
added a commit
that referenced
this pull request
Jun 8, 2025
…peVarTuple that has a non-TypeVarTuple after it in the type parameter list. This addresses #10563.
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Diff from mypy_primer, showing the effect of this PR on open source code: sympy (https://github.com/sympy/sympy)
+ ...:554:13 - error: Cannot access attribute "canon_bp" for class "Expr"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:554:13 - error: Cannot access attribute "canon_bp" for class "One"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:554:13 - error: Cannot access attribute "canon_bp" for class "Zero"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:554:13 - error: Cannot access attribute "canon_bp" for class "TensExpr"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "Expr"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "Zero"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "One"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "NegativeOne"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "Integer"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "NaN"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "ComplexInfinity"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "Rational"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "Infinity"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "NegativeInfinity"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "Float"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:558:15 - error: Cannot access attribute "canon_bp" for class "Number"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:577:13 - error: Cannot access attribute "canon_bp" for class "Expr"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:577:13 - error: Cannot access attribute "canon_bp" for class "One"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:577:13 - error: Cannot access attribute "canon_bp" for class "NegativeOne"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:577:13 - error: Cannot access attribute "canon_bp" for class "Zero"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:577:13 - error: Cannot access attribute "canon_bp" for class "Integer"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:577:13 - error: Cannot access attribute "canon_bp" for class "NaN"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:577:13 - error: Cannot access attribute "canon_bp" for class "ComplexInfinity"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:577:13 - error: Cannot access attribute "canon_bp" for class "Rational"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:577:13 - error: Cannot access attribute "canon_bp" for class "Infinity"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:577:13 - error: Cannot access attribute "canon_bp" for class "NegativeInfinity"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:577:13 - error: Cannot access attribute "canon_bp" for class "Float"
+ Attribute "canon_bp" is unknown (reportAttributeAccessIssue)
+ ...:1602:36 - error: "__getitem__" method not defined on type "NegativeOne" (reportIndexIssue)
+ ...:1602:36 - error: "__getitem__" method not defined on type "One" (reportIndexIssue)
+ ...:1602:36 - error: "__getitem__" method not defined on type "TensExpr" (reportIndexIssue)
+ ...:1608:43 - error: "__getitem__" method not defined on type "NegativeOne" (reportIndexIssue)
+ ...:1608:43 - error: "__getitem__" method not defined on type "One" (reportIndexIssue)
+ ...:1608:43 - error: "__getitem__" method not defined on type "TensExpr" (reportIndexIssue)
+ ...:1694:44 - error: Cannot access attribute "data" for class "NegativeOne"
+ Attribute "data" is unknown (reportAttributeAccessIssue)
+ ...:1694:44 - error: Cannot access attribute "data" for class "One"
+ Attribute "data" is unknown (reportAttributeAccessIssue)
+ ...:1694:44 - error: Cannot access attribute "data" for class "TensExpr"
+ Attribute "data" is unknown (reportAttributeAccessIssue)
- ...:1802:43 - error: Cannot access attribute "simplify" for class "tuple[Unknown | Basic | Add | Dict, bool]"
+ ...:1802:43 - error: Cannot access attribute "simplify" for class "tuple[Unknown | Basic | Add | Expr | Mul | Dict, bool]"
- ...:1828:48 - error: Cannot access attribute "simplify" for class "tuple[Unknown | Basic | Add | Dict, bool]"
+ ...:1828:48 - error: Cannot access attribute "simplify" for class "tuple[Unknown | Basic | Add | Expr | Mul | Dict, bool]"
+ ...:253:7 - error: Base classes for class "DyadicAdd" define method "as_content_primitive" in incompatible way
+ Return type mismatch: base method returns type "tuple[One, Self@Expr]", override returns type "tuple[One | NegativeOne | Zero | Integer | Expr | Unknown | Rational | NaN | ComplexInfinity, Expr | Unknown | Self@Add]"
+ "tuple[One | NegativeOne | Zero | Integer | Expr | Unknown | Rational | NaN | ComplexInfinity, Expr | Unknown | Self@Add]" is not assignable to "tuple[One, Self@Expr]"
+ Tuple entry 1 is incorrect type
+ Type "One | NegativeOne | Zero | Integer | Expr | Unknown | Rational | NaN | ComplexInfinity" is not assignable to type "One"
+ "Expr" is not assignable to "One" (reportIncompatibleMethodOverride)
+ ...:496:7 - error: Base classes for class "VectorAdd" define method "as_content_primitive" in incompatible way
+ Return type mismatch: base method returns type "tuple[One, Self@Expr]", override returns type "tuple[One | NegativeOne | Zero | Integer | Expr | Unknown | Rational | NaN | ComplexInfinity, Expr | Unknown | Self@Add]"
+ "tuple[One | NegativeOne | Zero | Integer | Expr | Unknown | Rational | NaN | ComplexInfinity, Expr | Unknown | Self@Add]" is not assignable to "tuple[One, Self@Expr]"
+ Tuple entry 1 is incorrect type
+ Type "One | NegativeOne | Zero | Integer | Expr | Unknown | Rational | NaN | ComplexInfinity" is not assignable to type "One"
+ "Expr" is not assignable to "One" (reportIncompatibleMethodOverride)
- 33353 errors, 74 warnings, 0 informations
+ 33391 errors, 74 warnings, 0 informations
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…used to define the
extra_itemstype for a generic TypedDict. This addresses #10545.