On 26/01/2010 00:12, Christian Heimes wrote:
Benjamin Peterson wrote:
Yes, but in either of these cases is there an excellent performance
improvement to be gained and is it worth the complexity of your
optimization? I think not.
Me, too.
I already tried to explain Steve that I have used list.pop(0) in very
few cases during my seven years as a professional Python developer.
Since I knew that popping from the beginning of a list is slower than
popping from the end or just leaving the list unmodified I found ways to
alter my algorithms. The few cases left were either not performance
critical or used dequeue instead.
I vote -0.5 on the change unless Guido, Tim or Raymond think that the
size and complication impact is worth the hassle.
How great is the complication? Making list.pop(0) efficient sounds like
a worthy goal, particularly given that the reason you don't use it is
because you *know* it is inefficient (so the fact that you don't use it
isn't evidence that it isn't wanted - merely evidence that you had to
work around the known inefficiency).
Michael
Christian
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
http://mail.python.org/mailman/listinfo/python-dev
Unsubscribe:
http://mail.python.org/mailman/options/python-dev/fuzzyman%40voidspace.org.uk
--
http://www.ironpythoninaction.com/
http://www.voidspace.org.uk/blog
READ CAREFULLY. By accepting and reading this email you agree, on behalf of
your employer, to release me from all obligations and waivers arising from any
and all NON-NEGOTIATED agreements, licenses, terms-of-service, shrinkwrap,
clickwrap, browsewrap, confidentiality, non-disclosure, non-compete and
acceptable use policies (”BOGUS AGREEMENTS”) that I have entered into with your
employer, its partners, licensors, agents and assigns, in perpetuity, without
prejudice to my ongoing rights and privileges. You further represent that you
have the authority to release me from any BOGUS AGREEMENTS on behalf of your
employer.
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
http://mail.python.org/mailman/listinfo/python-dev
Unsubscribe:
http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
