Python Sort() method

Question

I am starting to learn Python.

Can someone explain why sort() returns None?

alist.sort()            ## correct
alist = blist.sort()    ## NO incorrec         


        

Answer 1

alist.sort() sorts alist in-place, modifying alist itself.

If you want a new list to assign somewhere, use blist = sorted(alist)

• list.sort(): http://docs.python.org/library/stdtypes.html#mutable-sequence-types
• sorted(): http://docs.python.org/library/functions.html#sorted