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

Groups > comp.lang.python > #60606

Re: Wrapping around a list

Show key headers only | View raw

On Wed, Nov 27, 2013 at 5:46 AM,  <amjadcsu@gmail.com> wrote:
> I am working on a problem (Bioinformatics domain) where all
> possible combinations of input string needs to be printed as
> sublist
>
> For example:
> Input string : "LEQN"
> Output= "[L","E","Q","N"]
> ["LE","EQ","QN","NL"]["LEQ","EQN","QNE","NLE"]["LEQN"]

How about itertools.combinations?

import itertools

s = "LEQN"
for i in range(len(s)):
    for comb in itertools.combinations(s, i+1):
        print(comb)
Output:
('L',)
('E',)
('Q',)
('N',)
('L', 'E')
('L', 'Q')
('L', 'N')
('E', 'Q')
('E', 'N')
('Q', 'N')
('L', 'E', 'Q')
('L', 'E', 'N')
('L', 'Q', 'N')
('E', 'Q', 'N')
('L', 'E', 'Q', 'N')

For some reason I've got more 2-character combinations than you,
though.

-- 
Neil Cerutti

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Wrapping around a list amjadcsu@gmail.com - 2013-11-27 02:46 -0800
  Re: Wrapping around a list Chris Angelico <rosuav@gmail.com> - 2013-11-27 21:53 +1100
    Re: Wrapping around a list Amjad Syed <amjadcsu@gmail.com> - 2013-11-27 03:07 -0800
      Re: Wrapping around a list Chris Angelico <rosuav@gmail.com> - 2013-11-27 22:14 +1100
        Re: Wrapping around a list Amjad Syed <amjadcsu@gmail.com> - 2013-11-27 10:14 -0800
      Re: Wrapping around a list Ned Batchelder <ned@nedbatchelder.com> - 2013-11-27 06:26 -0500
  Re: Wrapping around a list Neil Cerutti <mr.cerutti@gmail.com> - 2013-11-27 08:33 -0500
    Re: Wrapping around a list Peter Pearson <ppearson@nowhere.invalid> - 2013-11-27 17:42 +0000
  Re: Wrapping around a list rusi <rustompmody@gmail.com> - 2013-11-27 08:12 -0800

csiph-web