On Jan 23, 2008 3:19 AM, Raymond Hettinger <[EMAIL PROTECTED]> wrote:
> [Steven Bethard]
>
> >We've already lost this if anyone really wants to break it::
> >
> >>>> class C(object):
> >... def __iter__(self):
> >... return iter(xrange(3))
> >... def __contains__(sel
>> And, would we lose the nice relationship expressed by:
>>
>> for elem in container:
>> assert elem in container
[Steven Bethard]
>We've already lost this if anyone really wants to break it::
>
>>>> class C(object):
>... def __iter__(self):
>... return iter(x
On Jan 22, 2008 5:40 PM, Raymond Hettinger <[EMAIL PROTECTED]> wrote:
> [Daniel Stutzbach]
> > There are many places in the C implementation where a slot
> > returns an int rather than a PyObject. There other replies
> > in this thread seem to support altering the signature of the
> > slot to retu
[Daniel Stutzbach]
> There are many places in the C implementation where a slot
> returns an int rather than a PyObject. There other replies
> in this thread seem to support altering the signature of the
> slot to return a PyObject. Is this setting a precedent that
> _all_ slots should return
On Jan 22, 2008 3:46 PM, Daniel Stutzbach
<[EMAIL PROTECTED]> wrote:
> On Jan 22, 2008 1:26 PM, tomer filiba <[EMAIL PROTECTED]> wrote:
> > >>> class Foo(object):
> > ... def __contains__(self, key):
> > ... return 17
> > ... def __eq__(self, other):
> > ... return 1
On Jan 22, 2008 1:26 PM, tomer filiba <[EMAIL PROTECTED]> wrote:
> >>> class Foo(object):
> ... def __contains__(self, key):
> ... return 17
> ... def __eq__(self, other):
> ... return 19
> ...
> >>>
> >>> f=Foo()
> >>> f == 8
> 19
> >>> 8 in f
> True
There are many
The issue is that the sq_contains slot is defined as returning an int,
while the tp_richcompare slot is defined as returning a PyObject *.
Your first opportunity for changing this will be Py3k. Please submit a patch!
On Jan 22, 2008 11:26 AM, tomer filiba <[EMAIL PROTECTED]> wrote:
> i'm using py
My guess is that results from the bottom of cmp_outcome (ceval.c),
The default case handles the PyCmp_EQ case via PyObject_RichCompare,
which might not return Py_True or Py_False.
But 'in' is handled inside the switch and is subject to the final
statements:
v = res ? Py_True : Py_False;
