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19 lines
536 B
Python
19 lines
536 B
Python
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"""
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no imports from fishy itself here, or anything which depends on fishy
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"""
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def singleton_proxy(instance_name):
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def decorator(root_cls):
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if not hasattr(root_cls, instance_name):
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raise AttributeError(f"{instance_name} not found in {root_cls}")
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class SingletonProxy(type):
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def __getattr__(cls, name):
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return getattr(getattr(cls, instance_name), name)
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class NewClass(root_cls, metaclass=SingletonProxy):
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...
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return NewClass
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return decorator
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