What's correct Python syntax?

[Rustom Mody]

On Tuesday, January 14, 2014 2:16:56 PM UTC+5:30, 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
> 
> (this is the text file out of tcpdump)
> 
> 
> Now I can esily split the line twice: once by ':' symbol to separate
> address and the protocol information and the second time by ',' to get
> information about the protocol.
> However, I don't need all the protocol info. All I'm interested in is
> the last field, which is length.
> 
> 
> 
> Is there a way to write something like this:
> 
> 
> for data in f:
>      (address,traffic) = string.split(data, ':')
>      length = string.split(traffic, ',')[3]
> 
> 
> 
> I'm interesred in only one element, so why should care about everything else?
> This can be easily done in Perl, but I'm stuck with Python now. ;-)


>>> data="192.168.1.6 > 192.168.1.7: ICMP echo request, id 100, seq 200, length 30"
>>> (add,traff) = data.split(':')
>>> add
'192.168.1.6 > 192.168.1.7'
>>> traff
' ICMP echo request, id 100, seq 200, length 30'
>>> lenn = traff.split(',')
>>> lenn = traff.split(',')[3]
>>> lenn
' length 30'
>>>