############################################################################## # # Copyright (c) 2003 Zope Foundation and Contributors. # All Rights Reserved. # # This software is subject to the provisions of the Zope Public License, # Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS # FOR A PARTICULAR PURPOSE. # ############################################################################## """Odd meta class that doesn't subclass type. This is used for testing support for ExtensionClass in new interfaces. >>> class A(object): ... __metaclass__ = MetaClass ... a = 1 ... >>> A.__name__ 'A' >>> A.__bases__ == (object,) True >>> class B(object): ... __metaclass__ = MetaClass ... b = 1 ... >>> class C(A, B): pass ... >>> C.__name__ 'C' >>> int(C.__bases__ == (A, B)) 1 >>> a = A() >>> aa = A() >>> a.a 1 >>> aa.a 1 >>> aa.a = 2 >>> a.a 1 >>> aa.a 2 >>> c = C() >>> c.a 1 >>> c.b 1 >>> c.b = 2 >>> c.b 2 >>> C.c = 1 >>> c.c 1 >>> import sys >>> if sys.version[0] == '2': # This test only makes sense under Python 2.x ... from types import ClassType ... assert not isinstance(C, (type, ClassType)) >>> int(C.__class__.__class__ is C.__class__) 1 """ # class OddClass is an odd meta class class MetaMetaClass(type): def __getattribute__(self, name): if name == '__class__': return self return type.__getattribute__(self, name) class MetaClass(object): """Odd classes """ __metaclass__ = MetaMetaClass def __init__(self, name, bases, dict): self.__name__ = name self.__bases__ = bases self.__dict__.update(dict) def __call__(self): return OddInstance(self) def __getattr__(self, name): for b in self.__bases__: v = getattr(b, name, self) if v is not self: return v raise AttributeError(name) def __repr__(self): return "<odd class %s at %s>" % (self.__name__, hex(id(self))) class OddInstance(object): def __init__(self, cls): self.__dict__['__class__'] = cls def __getattribute__(self, name): dict = object.__getattribute__(self, '__dict__') if name == '__dict__': return dict v = dict.get(name, self) if v is not self: return v return getattr(dict['__class__'], name) def __setattr__(self, name, v): self.__dict__[name] = v def __delattr__(self, name): del self.__dict__[name] def __repr__(self): return "<odd %s instance at %s>" % ( self.__class__.__name__, hex(id(self))) # DocTest: if __name__ == "__main__": import doctest, __main__ doctest.testmod(__main__, isprivate=lambda *a: False)
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__pycache__ | Folder | 0755 |
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__init__.py | File | 481 B | 0644 |
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advisory_testing.py | File | 1.23 KB | 0644 |
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dummy.py | File | 888 B | 0644 |
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idummy.py | File | 889 B | 0644 |
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ifoo.py | File | 851 B | 0644 |
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ifoo_other.py | File | 851 B | 0644 |
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m1.py | File | 812 B | 0644 |
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m2.py | File | 689 B | 0644 |
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odd.py | File | 3.01 KB | 0644 |
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test_adapter.py | File | 52.49 KB | 0644 |
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test_advice.py | File | 11.22 KB | 0644 |
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test_declarations.py | File | 58.65 KB | 0644 |
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test_document.py | File | 16.46 KB | 0644 |
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test_element.py | File | 1.29 KB | 0644 |
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test_exceptions.py | File | 2.66 KB | 0644 |
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test_interface.py | File | 71.17 KB | 0644 |
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test_interfaces.py | File | 3.48 KB | 0644 |
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test_odd_declarations.py | File | 6.75 KB | 0644 |
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test_registry.py | File | 99.79 KB | 0644 |
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test_ro.py | File | 3.23 KB | 0644 |
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test_sorting.py | File | 1.57 KB | 0644 |
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test_verify.py | File | 15.32 KB | 0644 |
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