How to get the last value in a list/string using Python

Question

I am a beginner in writing Python scripts and I need help on the following:

Threads::num,47141,47146,47151,47156,47161,47166,47171,47176

How can I get and display the last value '47176'?

The following is the part of the code I have written:

elif sys.argv[1] == "-c":
    b = sys.argv[2]
    with open(b) as f:
        for line in f:
            if 'Threads::num' in line:
                print line.strip(',').split(',')[-1]
                print line

The output of this code is that it displays all the values as follows:

Threads::num,47141,47146,47151,47156,47161,47166,47171,47176

-sid

Posts on this corner of the SE network are expected to relate to software testing and/or quality assurance in some way. This post fails to meet that criterion. — corsiKa, Jul 09 '12 at 19:33

score 1 · Answer 1 · answered Jul 22 '11 at 13:59

1

Something like this:

threads_string = "Threads::num,47141,47146,47151,47156,47161,47166,47171,47176"
split_threads_string = threads_string.split(',')
print split_threads_string[-1]

answered Jul 22 '11 at 13:59

Tom77

844
4
11

I solved it: I gave print split_threads_string[-2] as there was a newline involved at the end of the line. – Siddharth Ravindran Jul 26 '11 at 06:35
I would suggest trimming it before splitting. If the answe rabove is correct you should mark it as such. – Ardesco Jul 26 '11 at 09:16

score 0 · Answer 2 · answered Jul 25 '11 at 14:47

0

import sys

if sys.argv[1] == '-c':
    b = sys.argv[2]

with open(b) as f:
    for line in f:
        if line.startswith('Threads::num'):
            print line.split(',')[-1].strip()

Also I would suggest using optparse instead of sys.argv

answered Jul 25 '11 at 14:47

Jason Ward

1,155
9
7

Hi Jason thanks for the reply and I have solved the issue i have used I gave print split_threads_string[-2] as there was a newline involved at the end of the line. – Siddharth Ravindran Jul 26 '11 at 06:37

How to get the last value in a list/string using Python

2 Answers2