On 4/8/2010 3:07 AM, Steven D'Aprano wrote:
On Wed, 07 Apr 2010 20:14:23 -0700, Raymond Hettinger wrote:
[Raymond Hettinger]
If the two collections have unequal sizes, then both ways immediately
return unequal.
[Steven D'Aprano]
Perhaps I'm misinterpreting what you are saying, but I can't confirm
that behaviour, at least not for subclasses of list:
For doubters, see list_richcompare() in
http://svn.python.org/view/python/trunk/Objects/listobject.c?
revision=78522&view=markup
So what happens in my example with a subclass that (falsely) reports a
different length even when the lists are the same?
I can guess that perhaps Py_SIZE does not call the subclass __len__
method, and therefore is not fooled by it lying. Is that the case?
Adding a print call within __len__ should determine that.
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