22 lines
588 B
Python
22 lines
588 B
Python
class Field:
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def __set_name__(self, owner, name):
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self.name = name
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def __get__(self, inst, cls):
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if inst is None:
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return self
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assert self.name is not None
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return inst._fields[self.name]
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def __set__(self, inst, value):
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assert self.name is not None
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inst._fields[self.name] = value
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def _set_namespace(self, inst, name, namespaces):
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if name is None:
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return
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if name not in namespaces:
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raise KeyError("namespace %s not found" % (name))
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inst._namespace_prefix = name
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