[Tutor] 4.7.5

[Doug and Riekie Dorman]

I think I may have found a bug:

>>>pairs  =  [(1,  'one'),  (2,  'two'),  (3,  'three'),  (4,  'four')]
>>>pairs.sort(key=lambda  pair:  pair[1])
>>>pairs
[(4, 'four'), (1, 'one'), (3, 'three'), (2, 'two')]

Should be:

>>>pairs  =  [(1,  'one'),  (2,  'two'),  (3,  'three'),  (4,  'four')]
>>>pairs.sort(key=lambda  pairs:  pairs[1])
>>>pairs
[(4, 'four'), (1, 'one'), (3, 'three'), (2, 'two')]

I have increased the size of the two s's to show the problem.

Doug


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