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Fix Constants() to work with Python 3.14 annotations. #203

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Fix Constants() to work with Python 3.14 annotations. #203

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17 changes: 16 additions & 1 deletion tensorizer/_crypt/_encryption.py
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Original file line number Diff line number Diff line change
Expand Up @@ -346,6 +346,21 @@ def init_sodium_memzero():
sodium_memzero = init_sodium_memzero()


def _pop_annotations(dct: dict) -> dict:
"""Extract annotations from a metaclass namespace dict.

In Python 3.14+ (PEP 649), annotations are lazily evaluated and stored
as ``__annotate_func__`` instead of ``__annotations__``.
"""
annotations = dct.pop("__annotations__", None)
if annotations is not None:
return annotations
annotate_func = dct.get("__annotate_func__")
if annotate_func is not None:
return annotate_func(1)
return {}


class Constants(type):
@staticmethod
def _get_constant(name, typ) -> int:
Expand All @@ -355,7 +370,7 @@ def _get_constant(name, typ) -> int:
return getter()

def __new__(cls, name: str, bases: tuple, dct: dict) -> NamedTuple:
annotations = dct.pop("__annotations__", {})
annotations = _pop_annotations(dct)
entries = {}
for constant_name, constant_type in dct.items():
if constant_name.startswith("_"):
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