Re: Weirdness comparing strings

On Tue, Sep 30, 2008 at 12:55 PM, Ken Seehart <ken@xxxxxxxxxxx> wrote:
Instance comparison is not necessarily the same as string comparison.
Neither __str__ nor __repr__ are implicitly used at all for comparison.

Ok, I see.

In fact, by default a pair of instances are not equal unless they are the
same object. To define comparison to mean something, you need to define
__cmp__ or __eq__.

Trivial example of default comparison:

class C:
... pass
...
c = C()
d = C()
c==d
False
c==c
True

Thanks.

Almar Klein:
but this does not implicitly convert self to a string. You'll have to
do in explicitly:
use "return str(self) == note" instead.

Yes, this works.
Thanks.
.