-#!/usr/bin/env python3
# coding: utf-8
-from __future__ import unicode_literals
-
import re
-class LazyLoadExtractor(object):
+class LazyLoadMetaClass(type):
+ def __getattr__(cls, name):
+ return getattr(cls._get_real_class(), name)
+
+
+class LazyLoadExtractor(metaclass=LazyLoadMetaClass):
_module = None
+ @classmethod
+ def _get_real_class(cls):
+ if '__real_class' not in cls.__dict__:
+ mod = __import__(cls._module, fromlist=(cls.__name__,))
+ cls.__real_class = getattr(mod, cls.__name__)
+ return cls.__real_class
+
def __new__(cls, *args, **kwargs):
- mod = __import__(cls._module, fromlist=(cls.__name__,))
- real_cls = getattr(mod, cls.__name__)
+ real_cls = cls._get_real_class()
instance = real_cls.__new__(real_cls)
instance.__init__(*args, **kwargs)
return instance