How to get ordered list of strings

Question

I have a list looking like this:

pages= ['page34','page1','page12','page9','page11','page2','page10']

I have tested this:

pages.sorted()

and I got something "almost" ordered, but not ok:

>>> pages
['page1', 'page10', 'page11', 'page12', 'page2', 'page34', 'page9']

So, How could I get the desired ordered list, looking like:

page1, page2, page9, page10, page11, page12 and page34

sshashank124 · Accepted Answer · 2014-04-23T08:19:27.547

5

You can do that as:

pages = ['page34','page1','page12','page9','page11','page2','page10']

pages.sort(key = lambda x: int(x[4:]))

>>> print pages
['page1', 'page2', 'page9', 'page10', 'page11', 'page12', 'page34']

This will sort the list based on the numeric value of the page number (x[4:])

Suggested reading (by Grijesh Chauhan): https://wiki.python.org/moin/HowTo/Sorting

edited Apr 23 '14 at 08:19

answered Apr 23 '14 at 08:13

sshashank124

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Very good one, THANKS, it worked. I didn' t know that you can do sort like that. Thanks. – codeKiller Apr 23 '14 at 08:16
@user2919052, No problem. Glad to have helped. – sshashank124 Apr 23 '14 at 08:17
@user2919052 you should always read manual of function from Python doc. – Grijesh Chauhan Apr 23 '14 at 08:17
@user2919052 read https://wiki.python.org/moin/HowTo/Sorting – Grijesh Chauhan Apr 23 '14 at 08:18
Thanks, Grijesh, I will for sure! – codeKiller Apr 23 '14 at 08:19
@GrijeshChauhan, Nice link. I have incorporated into my answer. Thank you! – sshashank124 Apr 23 '14 at 08:19

How to get ordered list of strings

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