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'make lazy-extractors' creates the youtube_dl/extractor/lazy_extractors.py (imported by youtube_dl/extractor/__init__.py), which contains simplified classes that only have the 'suitable' class method and that load the appropiate class with the '__new__' method when a instance is created.
18 lines
367 B
Python
18 lines
367 B
Python
# flake8: noqa
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from __future__ import unicode_literals
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import re
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class LazyLoadExtractor(object):
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_module = None
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@classmethod
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def ie_key(cls):
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return cls.__name__[:-2]
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def __new__(cls):
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mod = __import__(cls._module, fromlist=(cls.__name__,))
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real_cls = getattr(mod, cls.__name__)
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return real_cls.__new__(real_cls)
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