Bill Mill wrote:
>> By the way, sorted() can be removed from your original post.
>>
>> Code has no effect :-)
>
> I'm gonna go ahead and disagree with you:
>
>>>> sorted([''.join((x, y)) for x in alpha \
> ... for y in [''] + [z for z in alpha]], key=len) == \
> ... [''.join((x,y)) for x in alpha for y in [''] + [z for z in alpha]]
> False
>
That's not your original code. You used the contents to modify the locals()
(effectively globals()) dictionary:
>>>> alpha = 'abcdefghijklmnopqrstuvwxyz'
>>>> for i, digraph in enumerate(sorted([''.join((x, y)) for x in alpha \
> for y in [''] + [z for z in alpha]], key=len)):
> ... locals()[digraph] = i + i
> ...
>
Of course you lose the order in that process.
When you do care about order, I suggest that you swap the for clauses
instead of sorting, e. g:
>>> alpha = list("abc")
>>> items = [x + y for x in [""] + alpha for y in alpha]
>>> items == sorted(items, key=len)
True
Peter
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