CODEWITHSUNDEEP
pythondictionarypython-3.3
UncannyOne
UncannyOne

Reputation: 21

How do I sort a list in a dictionary

How can I sort the list present in the dictionary:

fourB={"James":[10,11,9]}

I will have multiple entries but I want to be able to sort the list of integers out for each one of them. How can I do that? Thanks!Any help will be appreciated. :)

Upvotes: 0

Views: 107

Answers (2)

John Zwinck
John Zwinck

Reputation: 249153

for numbers in fourB.values():
    numbers.sort()

The above is better than iterating over the keys() followed by indexing into fourB, because here you avoid the dict lookup.

If you love one-liners, here's one:

map(list.sort, fourB.values())

But take note if there are many keys in the dict, as this will return a list of [None]*len(fourB.values()) which is immediately discarded--and that's not optimally efficient. I'd stick with the obvious loop version for this reason and also for readability.

Upvotes: 6

oz123
oz123

Reputation: 28858

You should iterate over the keys and sort their values:

for k in fourB.keys():
    fourB[k].sort()

Upvotes: 2

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