Message 98490 - Python tracker

Message98490

Author	Alexander.Belopolsky
Recipients	Alexander.Belopolsky, Christophe Simonis, belopolsky, ironfroggy, rhettinger, ssadler
Date	2010-01-29.00:25:25
SpamBayes Score	1.663688e-07
Marked as misclassified	No
Message-id	<1264724726.83.0.593259708652.issue4331@psf.upfronthosting.co.za>
In-reply-to

Content
Christophe, It looks like your patch goes out of its way to avoid creating nested partials. This is a worthwhile goal and I think it should be done in partial_new so that partial(partial(f, x), y) returns partial(f, x, y). If fact, I was surprised to learn that current partial implementation does not behave this way: >>> partial(partial(f, 1), 2).func <functools.partial object at 0x100435af8> Does anyone know the reason for the current behavior? It is possible that I am missing some subtlety related to keyword arguments.

Content

Christophe,

It looks like your patch goes out of its way to avoid creating nested partials.  This is a worthwhile goal and I think it should be done in partial_new so that partial(partial(f, x), y) returns partial(f, x, y).

If fact, I was surprised to learn that current partial implementation does not behave this way:

>>> partial(partial(f, 1), 2).func
<functools.partial object at 0x100435af8>

Does anyone know the reason for the current behavior?  It is possible that I am missing some subtlety related to keyword arguments.

History
Date	User	Action	Args
2010-01-29 00:25:27	Alexander.Belopolsky	set	recipients: + Alexander.Belopolsky, rhettinger, belopolsky, ironfroggy, Christophe Simonis, ssadler
2010-01-29 00:25:26	Alexander.Belopolsky	set	messageid: <1264724726.83.0.593259708652.issue4331@psf.upfronthosting.co.za>
2010-01-29 00:25:25	Alexander.Belopolsky	link	issue4331 messages
2010-01-29 00:25:25	Alexander.Belopolsky	create