Use list.sort() when you want to mutate the list, sorted() when you want a new sorted object back. Use sorted() when you want to sort something that is an iterable, not a list yet. For lists, …

Here I would use the variable name "keyfun" instead of "cmpfun" to avoid confusion. The sort () method does accept a comparison function through the cmp= argument as well.

Aug 30, 2008 · As sort() sorts the list in place (ie, changes the list directly), it doesn't return the sorted list, and actually doesn't return anything, so your print statement prints None. If you …

If you want to sort by two columns, pass a list of column labels to sort_values with the column labels ordered according to sort priority. If you use df.sort_values(['2', '0']), the result would be …

Jan 26, 2017 · A simple way I found to sort a dictionary is to create a new one, based on the sorted key:value items of the one you're trying to sort. If you want to sort dict = {}, retrieve all …

Jul 27, 2012 · Sort a list of Class Instances Python [duplicate] Asked 15 years, 2 months ago Modified 13 years, 5 months ago Viewed 171k times

Mar 5, 2009 · I am writing this detailed explanation to illustrate what people often mean by "I can easily sort a dictionary by key, but how do I sort by value" - and I think the original post was …

Apr 29, 2017 · There's good reason for both: .sort() sorts a list in-place. And sorted works on any iterator, but needs to use additional storage to accomplish the task.

Jul 31, 2023 · How to sort an integer list in Python in descending order Asked 11 years, 4 months ago Modified 2 years, 5 months ago Viewed 79k times

Aug 3, 2010 · c2.sort(key = sort_key) If you want to sort on more entries, just make the key function return a tuple containing the values you wish to sort on in order of importance.