Sebastian Thiel <byron...@gmail.com> added the comment:
Additional Information:
"multiple bases have instance lay-out conflict"
This happens only if I add __slots__ to the bases so that there is no
dict. I can reproduce this easily by indirectly deriving a class from
two bases that both define the same slot.
It only happens if all classes define __slots__ so there is no dict.
class ac( object ):
__slots__ = "a"
class bc( ac ):
__slots__ = "b"
class cc( ac ):
__slots__ = "c"
class cannotbecreated( bc,cc ):
pass
# raises an error.
Actually I don't know whether this is intended or if it is related to
the documentation section I pointed at.
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue7036>
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