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# encoding: utf-8 from __future__ import unicode_literals import re class LazyLoadExtractor(object): _module = None @classmethod def ie_key(cls): return cls.__name__[:-2] def __new__(cls): mod = __import__(cls._module, fromlist=(cls.__name__,)) real_cls = getattr(mod, cls.__name__) return real_cls.__new__(real_cls)