On Fri, Apr 15, 2011 at 12:40:20PM +1200, Francois Bissey wrote:
> After a small number of patch (#11156 from Nicolas M. Thiery, and 2 in
> #9958, one of which is from my friend Steve Trogdon) we have a clear view
> of what needs to be fixed. Test done on 4.7.alpha4 + #7377 and #9969
>
> Aside from the chatter due to change of format and messages here is
> what is interesting:
> ...
> The following tests results have to be investigated:
> ...
> sage -t -long -force_lib devel/sage-main/sage/structure/parent.pyx
> **********************************************************************
> File "/usr/share/sage/devel/sage-main/sage/structure/parent.pyx", line
> 634:
> sage: CCls()._test_eq()
> Expected:
> Traceback (most recent call last):
> ...
> AssertionError: <class '__main__.CCls'> == None
> Got nothing
This test reduces to:
sage: class CCls(Parent):
... def __eq__(self, other):
... return True
sage: x = CCls()
sage: x == None
True
and I assume you get False instead with Python 2.7, right?
I remember noticing planned changes for comparison operators, in
particular between objects that are not in the same class. I guess
this should be fairly harmless, but we should check out the
details. Do you have a pointer to the appropriate PEPS?
Cheers,
Nicolas
--
Nicolas M. Thiéry "Isil" <[email protected]>
http://Nicolas.Thiery.name/
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