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Python

Posted by renhe
renhe
10,282 Points

Combiner Task Starter

I haven't finished this task yet but was trying out the code that I do have and kept getting "None" returned instead of the list of integers and strings. Does anyone know why that is?

instances.py 
int_list = []
str_list = []

def combiner(list):
    for item in list:
        if isinstance(item, int) == True:
            ints = int_list.append(item)
            print(ints)
        elif isinstance(item, str) == True:
            strings = str_list.append(item)
            print(strings)

combiner([10, 'red', 'apple', 5])

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

All defined functions have an implicit return statement as the last statement. The return without an accompanying expression will return None. Since you do not have a return statement, the function will always return None.