Re: [Tutor] I need to learn more about sorting!

[Dick Moores]

After posting I went out, and while out I kept thinking about that
function and got a new idea. I didn't realize until I got back that I had
completely screwed up my first attempt. Anyway, here's my second, which
(I think) does the job for lists of 2-element tuples:
=======================================================
def sort_tuple_list_by_2nd_elements(alist):
    alist.sort
    alist_tup_elements_reversed = []
    for x in alist:
       
alist_tup_elements_reversed.append((x[1], x[0]))
    alist_tup_elements_reversed.sort()
    print alist_tup_elements_reversed
    
    alist_tup_elements_reversed_and_reversed_again =
[]
    for x in alist_tup_elements_reversed:
       
alist_tup_elements_reversed_and_reversed_again.append((x[1], x[0]))
    return
alist_tup_elements_reversed_and_reversed_again

simpler_list = [('a', 1), ('c', 8), ('d', 1), ('g', 6), ('f', 6), ('h',
10)]
colors = [('khaki4', (139, 134, 78)), ('antiquewhite', (250, 235, 215)),
('cyan3', (0, 205, 205)), ('antiquewhite1', (238, 223, 204)),
('dodgerblue4', (16, 78, 139)), ('antiquewhite4', (139, 131,
120)),]
print sort_tuple_list_by_2nd_elements(simpler_list)
print
print sort_tuple_list_by_2nd_elements(colors)
"""
OUTPUT
[('a', 1), ('d', 1), ('f', 6), ('g', 6), ('c', 8), ('h', 10)]
[('cyan3', (0, 205, 205)), ('dodgerblue4', (16, 78, 139)),
('antiquewhite4', (139, 131, 120)), ('khaki4', (139, 134, 78)),
('antiquewhite1', (238, 223, 204)), ('antiquewhite', (250, 235,
215))]
"""
===========================================================
I thank Jerry Hill and Kent Johnson for their kind replies. I haven't
figured them out yet, but I will (I think).  :-)
Dick


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