Sort dictionary by values (complex)! | Member | | Join Date: Mar 2007
Posts: 50
| |
Hi,
I need to perform some horrible functions in python I need to do, using sort in a similar way that Excel can.
With a dictionary like: -
>>> d
-
{8: (99, 99), 9: [(55, 67), (77, 66), (67, 88)], 4: [(45, 78), (56, 78), (99, 78)], 5: (67, 77)}
-
I want to sort the entire dictionary based on the last values in each line. First for [-1][0] and then[-1][0].
So sorted descending I would like the output to look like: -
>>> d
-
{8: (99, 99), 4: [(45, 78), (56, 78), (99, 78)], 9: [(55, 67), (77, 66), (67, 88)], 5: (67, 77)}
-
Many thanks
| | Member | | Join Date: Mar 2007
Posts: 50
| | | re: Sort dictionary by values (complex)!
Got a response for this from the python mailing list. Just thought I should share it with you all here. Quote:
import operator
cmplast = lambda x, y: cmp(x[-1], y[-1])
sorted(d.items(), key=operator.itemgetter(1), cmp=cmplast, reverse=True)
or
cmplast1 = lambda x, y: cmp(x[1][-1], y[1][-1])
sorted(d.items(), cmp=cmplast1, reverse=True)
[(8, [(99, 99)]), (4, [(45, 78), (56, 78), (99, 78)]), (9, [(55, 67),
(77, 66), (67, 88)]), (5, [(67, 77)])]
Thanks Sanchez!
|  | Moderator | | Join Date: Sep 2006 Location: Minden, Nevada, USA
Posts: 6,400
| | | re: Sort dictionary by values (complex)!
Quote:
Originally Posted by kdt Got a response for this from the python mailing list. Just thought I should share it with you all here.
Thanks Sanchez! Thanks for keeping us apprised!
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