AttributeError: 'list' object has no attribute 'sort_values'

Question

At work we recently upgraded to pandas 0.20 and I have a list of numbers that I sort using sort (however this is no longer supported and I am getting the above message when I try sort_values).

numbers = [1, 3, 4, 2] 
numbers.sort(reverse = True) 
print numbers

[4, 3, 2, 1]

numbers.sort_values(reverse = True)

I'm getting this error :

Traceback (most recent call last):

File "", line 1, in

AttributeError: 'list' object has no attribute 'sort_values'

Answer 1

You don't appear to be using pandas at all here; numbers is a standard Python list. And the method to sort a list is just called sort.

numbers.sort(reverse=True)

Answer 2

Use sorted():

lst = [1, 2, 3, 4]
new_lst = sorted(lst, reverse=True)