[Numpy-discussion] OpenOpt Suite release 0.45

Matthieu Brucher matthieu.brucher@gmail....
Sat Mar 16 04:33:32 CDT 2013


Hi,

Different objects can have the same hash, so it compares to find the actual
correct object.
Usually when you store something in a dict and later you can't find it
anymore, it is that the internal state changed and that the hash is not the
same anymore.

Matthieu


2013/3/16 Dmitrey <tmp50@ukr.net>

>
>
> --- Исходное сообщение ---
> От кого: "Alan G Isaac" <alan.isaac@gmail.com>
> Дата: 15 марта 2013, 22:54:21
>
> On 3/15/2013 3:34 PM, Dmitrey wrote:
> > the suspected bugs are not documented yet
>
>
> I'm going to guess that the state of the F_i changes
> when you use them as keys (i.e., when you call __le__.
>
> no, their state doesn't change for operations like __le__ . AFAIK
> searching Python dict doesn't calls __le__ on the object keys at all, it
> operates with method .__hash__(), and latter returns fixed integer numbers
> assigned to the objects earlier (at least in my case).
>
>
>  It is very hard to imagine that this is a Python or NumPy bug.
>
> Cheers,
> Alan
>
> _______________________________________________
> NumPy-Discussion mailing listNumPy-Discussion@scipy.orghttp://mail.scipy.org/mailman/listinfo/numpy-discussion
>
>
> _______________________________________________
> NumPy-Discussion mailing list
> NumPy-Discussion@scipy.org
> http://mail.scipy.org/mailman/listinfo/numpy-discussion
>
>


-- 
Information System Engineer, Ph.D.
Blog: http://matt.eifelle.com
LinkedIn: http://www.linkedin.com/in/matthieubrucher
Music band: http://liliejay.com/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.scipy.org/pipermail/numpy-discussion/attachments/20130316/b32e4c78/attachment.html 


More information about the NumPy-Discussion mailing list