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26 lines
754 B
Python
26 lines
754 B
Python
"""Private utility methods used by the subset modules"""
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def _add_method(*clazzes):
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"""Returns a decorator function that adds a new method to one or
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more classes."""
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def wrapper(method):
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done = []
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for clazz in clazzes:
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if clazz in done:
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continue # Support multiple names of a clazz
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done.append(clazz)
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assert clazz.__name__ != "DefaultTable", "Oops, table class not found."
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assert not hasattr(
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clazz, method.__name__
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), "Oops, class '%s' has method '%s'." % (clazz.__name__, method.__name__)
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setattr(clazz, method.__name__, method)
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return None
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return wrapper
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def _uniq_sort(l):
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return sorted(set(l))
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