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Fix error code of note about unbound type variable #21668

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Merged
JukkaL merged 1 commit into from
Jul 2, 2026
+4 −0
Merged

Fix error code of note about unbound type variable #21668

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1 change: 1 addition & 0 deletions mypy/checker.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1825,6 +1825,7 @@ def check_unbound_return_typevar(self, typ: CallableType) -> None:
"Consider using the upper bound "
f"{format_type(typ.ret_type.upper_bound, self.options)} instead",
context=typ.ret_type,
code=TYPE_VAR,
)

def check_default_params(self, item: FuncItem, body_is_trivial: bool | None = None) -> None:
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3 changes: 3 additions & 0 deletions test-data/unit/check-typevar-unbound.test
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Expand Up @@ -13,6 +13,9 @@ def g() -> U: # E: A function returning TypeVar should receive at least one argu
# N: Consider using the upper bound "int" instead
...

def g2() -> U: # type: ignore[type-var]
...

V = TypeVar('V', int, str)

def h() -> V: # E: A function returning TypeVar should receive at least one argument containing the same TypeVar
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