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

Groups > comp.lang.python > #63952 > unrolled thread

Re: What's correct Python syntax?

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: What's correct Python syntax? emile <emile@fenx.com> - 2014-01-14 14:13 -0800

#63952 — Re: What's correct Python syntax?

On 01/14/2014 02:05 PM, Terry Reedy wrote:
> On 1/14/2014 3:46 AM, Igor Korot wrote:
>> Hi, ALL,
>> I'm trying to process a file which has following lines:
>>
>> 192.168.1.6 > 192.168.1.7: ICMP echo request, id 100, seq 200, length 30
>
>> However, I don't need all the protocol info. All I'm interested in is
>> the last field, which is length.
>
> To directly extract only the needed info:
>
>  >>> s="192.168.1.6 > 192.168.1.7: ICMP echo request, id 100, seq 200,
> length 30"
>  >>> s[s.rindex(' ')+1:]
> '30'

Any particular reason to prefer that over:

 >>> s.split()[-1]
'30'

Is it a length of s and speed or rindex over build and toss the list 
kind of thing?

Emile

[toc] | [standalone]

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

csiph-web