third_party/stdlib/copy.py
def copy(x):
    """Shallow copy operation on arbitrary Python objects.

    See the module's __doc__ string for more info.
    """

    cls = type(x)

    copier = _copy_dispatch.get(cls)
    if copier:
        return copier(x)

    copier = getattr(cls, "__copy__", None)
    if copier:
        return copier(x)

    reductor = dispatch_table.get(cls)
    if reductor:
        rv = reductor(x)
    else:
        reductor = getattr(x, "__reduce_ex__", None)
        if reductor:
            rv = reductor(2)
        else:
            reductor = getattr(x, "__reduce__", None)
            if reductor:
                rv = reductor()
            else:
                raise Error("un(shallow)copyable object of type %s" % cls)

    return _reconstruct(x, rv, 0)
def copy(x):
    """Shallow copy operation on arbitrary Python objects.

    See the module's __doc__ string for more info.
    """

    cls = type(x)

    copier = _copy_dispatch.get(cls)
    if copier:
        return copier(x)

    copier = getattr(cls, "__copy__", None)
    if copier:
        return copier(x)

    reductor = dispatch_table.get(cls)
    if reductor:
        rv = reductor(x)
    else:
        reductor = getattr(x, "__reduce_ex__", None)
        if reductor:
            rv = reductor(2)
        else:
            reductor = getattr(x, "__reduce__", None)
            if reductor:
                rv = reductor()
            else:
                raise Error("un(shallow)copyable object of type %s" % cls)

    return _reconstruct(x, rv, 0)
def copy ( x ) : cls = type ( x ) copier = _copy_dispatch . get ( cls ) if copier : return copier ( x ) copier = getattr ( cls , "__copy__" , None ) if copier : return copier ( x ) reductor = dispatch_table . get ( cls ) if reductor : rv = reductor ( x ) else : reductor = getattr ( x , "__reduce_ex__" , None ) if reductor : rv = reductor ( 2 ) else : reductor = getattr ( x , "__reduce__" , None ) if reductor : rv = reductor ( ) else : raise Error ( "un(shallow)copyable object of type %s" % cls ) return _reconstruct ( x , rv , 0 )
Shallow copy operation on arbitrary Python objects.

    See the module's __doc__ string for more info.
Shallow copy operation on arbitrary Python objects .