##############################################################################
#
# Copyright (c) 2002 Zope Corporation 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.
#
##############################################################################
"""Provide a halfway believable rendition of Python 2.2's object

$Id: _object.py 40218 2005-11-18 14:39:19Z andreasjung $
"""

class _x:
    def m(self):
        pass

ClassTypes  = (type(_x), )
MethodTypes = (type(_x.m), )
isInstance = isinstance


try:
    object
except NameError:
    # Python 2.1
    try:
        from ExtensionClass import Base as object
    except ImportError:
        class object: pass
else:
    # Python 2.2
    ClassTypes += (type, )
    object = object


try:
    import ExtensionClass
except ImportError:
    # ExtensionClass is not present
    pass
else:
    # ExtensionClass is present
    def isInstance(ob, klass):
        if type(type(ob)) is type(klass):
            return isinstance(ob, klass)
        return 0

    class _x(ExtensionClass.Base):
        def m(self): pass

    ClassTypes  += (type(_x), )
    MethodTypes += (type(_x.m), )
