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annotate ___instancecheck__ @ 129:871ed91e9ece

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created
author 127.0.0.1
date Sat, 29 Jun 2013 15:28:52 +0200
parents d6c87ec934b6
children 7249221d294b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 {{{#!python
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2 def isinstance(thing, classinfo):
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3 if hasattr(thing, '__instancecheck__'):
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4 return thing.__instancecheck__(thing, classinfo)
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5 return issubclass(thing.__class__, classinfo)
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6
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7 def issubclass(cls, classinfo):
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8 if hasattr(cls, '__subclasscheck__'):
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9 return cls.__subclasscheck__(cls, classinfo)
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10 if classinfo.__class__ != tuple:
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11 classinfo = (classinfo,)
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12 for supeclass in search_classes(cls):
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13 if superclass in classinfo:
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14 return True
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15 return False
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16 }}}