self-inheritance...

[Emile van Sebille]

One way would be to add a class attribute stashing the the id of Dolly, and
later checking that it hasn't changed.

class Dolly:
    def a(s):
        if s.__clsid__ == id(Dolly):
            return "\n\nSource Dolly Class"
        else:
            return "\n\nSelf-inheritance not allowed"

Dolly.__clsid__ = id(Dolly)

d = Dolly()

print d.a()

class Dolly(Dolly):
    def b(s): pass

a = Dolly()
print a.a()

--

Emile van Sebille
emile at fenx.com

---------
"Roman Suzi" <rnd at onego.ru> wrote in message
news:mailman.999720984.24088.python-list at python.org...
> Interestingly enough, it works as expected:
>
> >>> class Dolly:
> ...    def a(s): pass
> ...
> >>> class Dolly(Dolly):
> ...    def b(s): pass
> ...
> >>> a = Dolly()
> >>> a.
> a.__class__(  a.__doc__     a.__module__  a.a(          a.b(
>
> Are there any means first Dolly-class could use to
> intervene into inheritance mechanism and spoil
> it?
>
> Sincerely yours, Roman Suzi
> --
> _/ Russia _/ Karelia _/ Petrozavodsk _/ rnd at onego.ru _/
> _/ Wednesday, September 05, 2001 _/ Powered by Linux RedHat 6.2 _/
> _/ "... Clinton sandwich: $5 of baloney and $20 in taxes" _/
>
>