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Annotate 3.14+ ipaddress version / max_prefixlen as Literal #16301

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Annotate 3.14+ ipaddress version / max_prefixlen as Literal #16301

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fa5a4fc
Annotate 3.14+ ipaddress `version` / `max_prefixlen` as `Literal`
ABruihler Aug 26, 2026
0752a11
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Aug 26, 2026
44bc4e1
Revert "[pre-commit.ci] auto fixes from pre-commit.com hooks"
ABruihler Aug 26, 2026
5bd8c23
Silence PYI064 on the explicit `Literal` annotations
ABruihler Aug 26, 2026
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12 changes: 8 additions & 4 deletions stdlib/ipaddress.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -109,8 +109,10 @@ class _BaseNetwork(_IPAddressBase, Generic[_A]):
class _BaseV4:
__slots__ = ()
if sys.version_info >= (3, 14):
version: Final = 4
max_prefixlen: Final = 32
# a bare `Final` infers as `int`, which cannot narrow an
# `IPv4Network | IPv6Network` union (PYI064 does not account for that)
version: Final[Literal[4]] = 4 # noqa: PYI064
max_prefixlen: Final[Literal[32]] = 32 # noqa: PYI064
else:
@property
def version(self) -> Literal[4]: ...
Expand Down Expand Up @@ -162,8 +164,10 @@ class IPv4Interface(IPv4Address):
class _BaseV6:
__slots__ = ()
if sys.version_info >= (3, 14):
version: Final = 6
max_prefixlen: Final = 128
# a bare `Final` infers as `int`, which cannot narrow an
# `IPv4Network | IPv6Network` union (PYI064 does not account for that)
version: Final[Literal[6]] = 6 # noqa: PYI064
max_prefixlen: Final[Literal[128]] = 128 # noqa: PYI064
else:
@property
def version(self) -> Literal[6]: ...
Expand Down