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gh-102615: Use list instead of tuple in repr of paramspec #102637

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Merged
AlexWaygood merged 5 commits into from
Mar 15, 2023
Merged

gh-102615: Use list instead of tuple in repr of paramspec #102637

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8e4620c
gh-102615: Use `list` instead of `tuple` in `repr` of paramspec
sobolevn Mar 13, 2023
4e12bd6
Apply suggestions from code review
sobolevn Mar 14, 2023
d226833
Update Lib/test/test_typing.py
sobolevn Mar 14, 2023
dc36254
Update Lib/test/test_typing.py
sobolevn Mar 14, 2023
3451d4d
Address review
sobolevn Mar 15, 2023
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Address review
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@sobolevn
sobolevn committed Mar 15, 2023
commit 3451d4d6de7034e63d792eac8983ceeb91c41157
33 changes: 29 additions & 4 deletions Lib/test/test_typing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3811,22 +3811,47 @@ class Y(C[int]):

def test_repr_3(self):
T = TypeVar('T')
T1 = TypeVar('T1')
P = ParamSpec('P')
P2 = ParamSpec('P2')
Ts = TypeVarTuple('Ts')

class MyCallable(Generic[P, T]):
pass

class DoubleSpec(Generic[P, P2, T]):
pass

class TsP(Generic[*Ts, P]):
pass

object_to_expected_repr = {
MyCallable[[], bool]: "MyCallable[[], bool]",
MyCallable[[int], bool]: "MyCallable[[int], bool]",
MyCallable[[int, str], bool]: "MyCallable[[int, str], bool]"
MyCallable[P, T]: "MyCallable[~P, ~T]",
MyCallable[Concatenate[T1, P], T]: "MyCallable[typing.Concatenate[~T1, ~P], ~T]",
MyCallable[[], bool]: "MyCallable[[], bool]",
MyCallable[[int], bool]: "MyCallable[[int], bool]",
MyCallable[[int, str], bool]: "MyCallable[[int, str], bool]",
MyCallable[[int, list[int]], bool]: "MyCallable[[int, list[int]], bool]",
MyCallable[Concatenate[*Ts, P], T]: "MyCallable[typing.Concatenate[*Ts, ~P], ~T]",

DoubleSpec[P2, P, T]: "DoubleSpec[~P2, ~P, ~T]",
DoubleSpec[[int], [str], bool]: "DoubleSpec[[int], [str], bool]",
DoubleSpec[[int, int], [str, str], bool]: "DoubleSpec[[int, int], [str, str], bool]",

TsP[*Ts, P]: "TsP[*Ts, ~P]",
TsP[int, str, list[int], []]: "TsP[int, str, list[int], []]",
TsP[int, [str, list[int]]]: "TsP[int, [str, list[int]]]",

# These lines are just too long to fit:
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@AlexWaygood AlexWaygood Mar 15, 2023

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😆

MyCallable[Concatenate[*Ts, P], int][int, str, [bool, float]]:
"MyCallable[[int, str, bool, float], int]",
}

for obj, expected_repr in object_to_expected_repr.items():
with self.subTest(obj=obj, expected_repr=expected_repr):
self.assertRegex(
repr(obj),
fr"^{re.escape(MyCallable.__module__)}.*\.{re.escape(expected_repr)}$"
fr"^{re.escape(MyCallable.__module__)}.*\.{re.escape(expected_repr)}$",
)

def test_eq_1(self):
Expand Down
2 changes: 0 additions & 2 deletions Lib/typing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -230,8 +230,6 @@ def _type_repr(obj):
typically enough to uniquely identify a type. For everything
else, we fall back on repr(obj).
"""
if isinstance(obj, types.GenericAlias):
return repr(obj)
if isinstance(obj, type):
if obj.__module__ == 'builtins':
return obj.__qualname__
Expand Down