8000 Fix type argument inference for overloaded functions with explicit self types (Fixes #14943). by tyralla · Pull Request #14975 · python/mypy · GitHub
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Fix type argument inference for overloaded functions with explicit self types (Fixes #14943). #14975

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Fix type argument inference for overloaded functions with explicit self types (Fixes #14943). #14975

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4b1fe1c
Fix type argument inference for overloaded functions with explicit se…
tyralla Mar 29, 2023
f354153
revert first attempt
tyralla Apr 10, 2023
589e0c6
try filtering in `bind_self` instead
tyralla Apr 10, 2023
9c107b3
black
tyralla Apr 10, 2023
b143796
flake
tyralla Apr 10, 2023
6b1573f
Simplify `checker.TypeChecker.bind_and_map_method` and remove "xfail"…
tyralla Apr 14, 2023
f1414f2
Add `testSelfTypeOverrideCompatibilitySelfTypeVar` (not my work: take…
tyralla Apr 14, 2023
6e5476a
ignore_type_vars=False for testing
tyralla Apr 15, 2023
3097ac2
Also filter externally defined self types (preliminary approach)
tyralla Apr 15, 2023
33a1f96
reverse ignore_type_vars=False
tyralla Apr 15, 2023
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@tyralla
tyralla committed Apr 10, 2023
commit 9c107b30fc6aeae4ef34cc213896518a2edf49ea
5 changes: 4 additions & 1 deletion mypy/subtypes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -291,7 +291,10 @@ def _is_subtype(
# ErasedType as we do for non-proper subtyping.
return True

if subtype_context.ignore_type_vars and (isinstance(left, TypeVarType) or isinstance(right, TypeVarType)):

if subtype_context.ignore_type_vars and (
isinstance(left, TypeVarType) or isinstance(right, TypeVarType)
):
return True

if isinstance(right, UnionType) and not isinstance(left, UnionType):
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0