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List[uint64] is not like a type but just for annotation, same for other Generics with __args__, Vector/BytesN work, because their metaclasses produce non-parametrized types, so don't check vector values when type contains args

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protolambda
2019-06-05 18:53:34 +02:00
parent 1cc7c7309d
commit b9abc5f2cf
1 changed files with 2 additions and 2 deletions
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4
test_libs/pyspec/eth2spec/utils/ssz/ssz_typing.py
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@@ -246,8 +246,8 @@ class Vector(metaclass=VectorMeta):
self.items = list(args)
# cannot check non-type objects
if isinstance(cls.elem_type, type):
# cannot check non-type objects, or parametrized types
if isinstance(cls.elem_type, type) and not hasattr(cls.elem_type, '__args__'):
for i, item in enumerate(self.items):
if not issubclass(type(item), cls.elem_type):
raise TypeError("Typed vector cannot hold differently typed value"