[Python-Dev] Comparison inconsistency with ExtensionClass

[Barry A. Warsaw]

>>>>> "JF" == Jim Fulton <jim@digicool.com> writes:

    JF>   Instances of two different "python types" are not compared
    JF>   using type-supplied comparison methods unless:

    JF>   - At least one of the types is InstanceType or

    JF>   - Both of the types are numeric.

    JF> This rule is rather inconvenient for ExtensionClass.
    JF> It's also pretty inconvenient for non-ExtensionClass
    JF> non-numeric extension types that want to be comparable with 
    JF> other things.

I ran into this problem when trying to translate a simple Boolean
class into a built-in type.  I basically could not get the comparisons
to work correctly when I moved to C.  So I'm +1 on fixing this at some
point (probably as Guido points out, when we add rich comparisons).

-Barry