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�mec@s}dZddlZddlmZddd��YZee��Zd�Zdefd��YZ	d	efd
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dS(s3Abstract Base Classes (ABCs) according to PEP 3119.i����N(tWeakSett_CcBseZRS((t__name__t
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t|_|S(s�A decorator indicating abstract methods.

    Requires that the metaclass is ABCMeta or derived from it.  A
    class that has a metaclass derived from ABCMeta cannot be
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    'super' call mechanisms.

    Usage:

        class C:
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            def my_abstract_method(self, ...):
                ...
    (tTruet__isabstractmethod__(tfuncobj((s/usr/lib64/python2.7/abc.pytabstractmethods	tabstractpropertycBseZdZeZRS(s/A decorator indicating abstract properties.

    Requires that the metaclass is ABCMeta or derived from it.  A
    class that has a metaclass derived from ABCMeta cannot be
    instantiated unless all of its abstract properties are overridden.
    The abstract properties can be called using any of the normal
    'super' call mechanisms.

    Usage:

        class C:
            __metaclass__ = ABCMeta
            @abstractproperty
            def my_abstract_property(self):
                ...

    This defines a read-only property; you can also define a read-write
    abstract property using the 'long' form of property declaration:

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            def getx(self): ...
            def setx(self, value): ...
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    ABCs as 'virtual subclasses' -- these and their descendants will
    be considered subclasses of the registering ABC by the built-in
    issubclass() function, but the registering ABC won't show up in
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