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, …

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 …

Apr 20, 2010 · Python list sort in descending order Asked 15 years, 1 month ago Modified 2 years, 9 months ago Viewed 919k times

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.

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 …

Jul 27, 2012 · Sort a list of Class Instances Python [duplicate] Asked 15 years, 1 month ago Modified 13 years, 4 months ago Viewed 171k times

May 8, 2012 · 5 Merge sort has always been one of my favorite algorithms. You start with short sorted sequences and keep merging them, in order, into larger sorted sequences. So simple. …

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 …

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.

I am a bit confused regarding data structure in python; (),[], and {}. I am trying to sort a simple list, probably since I cannot identify the type of data I am failing to sort it. My list is simp...