I need to sort this list:
[('A','Y'), ('J','A'), ('Y','J')] like this:
[('A','Y'), ('Y','J'), ('J','A')].
Note how the Ys and Js are together. All I need is for the second element of
one tuple to equal the first element of the next tuple. Another valid
solution is [('J','A'), ('A','Y'), ('Y','J')].
I was successful in doing this a while back with a modified bubble sort
algorithm, but now I can't find my own code. Can the list be sorted with a
comparison function or some other way?
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