On 17/06/13 03:25, Jim Mooney wrote:
On 15 June 2013 23:30, Dave Angel <da...@davea.name> wrote:
The sort() method doesn't work, but sorted does.
How many times have I read you can't sort a dictionary in Python. Was
I just misreading or was that true of older Pythons?
You can't sort a dictionary, because dicts don't have any inherent order.
(Unlike paper dictionaries.) That's done for performance reasons.
However, if you extract the keys from a dict, you can sort the keys separately.
So mydict.sort() fails, since dicts can't be sorted. But:
keys = list(mydict.keys())
keys.sort()
works fine. And here's something which, at first glance, *appears* to be
sorting a dict, but actually isn't:
sorted(mydict)
=> returns a list of mydict's keys, sorted.
--
Steven
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