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20 lines
619 B
20 lines
619 B
class Attach(object): |
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def __init__(self, dst): |
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self.dst = dst |
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def __call__(self, obj, name=None): |
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if name is None: |
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# Automatically get names of functions and classes |
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name = obj.__name__ |
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if hasattr(self.dst, name): |
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raise RuntimeError( |
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f"{self.dst} already has the attribute {name}, which is {getattr(self.dst, name)}." |
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) |
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setattr(self.dst, name, obj) |
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if hasattr(self.dst, '__all__'): |
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self.dst.__all__.append(name) |
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return obj |
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@staticmethod |
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def to(dst): |
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return Attach(dst)
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