I am just learning Python and programming in general and have come across the following question. I cannot seem to find an answer/explanation to why the statement below passes None in the assignment. Just trying to understand. I am oversimplifying below and understand that once I call .sort() on before that before has changed as well.
before = [67,45,2,13,1,998]
after = before.sort()
print(after)
Why, when I print after is it None?
sort is an inplace operation, it does not return a value so as with all python functions that don't return a value returns None by default so you are setting after to None.
Just call.sort and the print your list:
before = [67,45,2,13,1,998]
before.sort() # inplace sorts original list
print(before)
Or use sorted if you want a new list:
before = [67,45,2,13,1,998]
after = sorted(before) # creates a completely new list
print(after)
