Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #106659 > unrolled thread

Re: how to convert code that uses cmp to python3

Started byChris Angelico <rosuav@gmail.com>
First post2016-04-08 17:40 +1000
Last post2016-04-08 17:40 +1000
Articles 1 — 1 participant

Back to article view | Back to comp.lang.python

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.


Contents

  Re: how to convert code that uses cmp to python3 Chris Angelico <rosuav@gmail.com> - 2016-04-08 17:40 +1000

#106659 — Re: how to convert code that uses cmp to python3

FromChris Angelico <rosuav@gmail.com>
Date2016-04-08 17:40 +1000
SubjectRe: how to convert code that uses cmp to python3
Message-ID<mailman.70.1460101211.2253.python-list@python.org>
On Fri, Apr 8, 2016 at 5:35 PM, Antoon Pardon
<antoon.pardon@rece.vub.ac.be> wrote:
> Op 08-04-16 om 00:21 schreef Chris Angelico:
>> On Fri, Apr 8, 2016 at 6:56 AM, Antoon Pardon
>> <antoon.pardon@rece.vub.ac.be> wrote:
>>> That solution will mean I will have to do about 100% more comparisons
>>> than previously.
>> Try it regardless. You'll probably find that performance is fine.
>> Don't prematurely optimize!
>>
>> ChrisA
>
> But it was already working and optimized. The python3 approach forces
> me to make changes to working code and make the performance worse.

Is performance actually worse because you're doing two comparisons?
Visibly worse? If so, you probably have an overly-complex comparison
function, and a tree is *always* going to be suboptimal. Have you
actually measured a performance hit?

ChrisA

[toc] | [standalone]


Back to top | Article view | comp.lang.python


csiph-web