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Python Python Collections (2016, retired 2019) Slices Slice Functions

ABHINAV VERMA
ABHINAV VERMA
6,033 Points
Posted by ABHINAV VERMA
ABHINAV VERMA
6,033 Points

list1 = list(range[20]) first_4 = list1[:4] What's wrong with this

list1 = list(range[20]) first_4 = list1[:4] What's wrong with this

slices.py 
list1 = list(range[20])
first_4 = list1[:4]

2 Answers

Mike Wagner
Mike Wagner
23,559 Points
Mike Wagner
Mike Wagner
23,559 Points

Syntactically your range[20] should be range(20). Trying to do it the way you currently have it set up, you'll return a TypeError because a list object cannot be interpreted as an integer. though I'm not sure if that's the only reason you're not passing the Challenge. If this is all of your code for the Challenge, then the primary reason you would still not complete the task is because it is asking you to define a function first_4 which returns the first 4 values in the list, but instead you are creating a new list that contains those values and doing nothing with that list.

Erdem Meral
Erdem Meral
25,022 Points
Erdem Meral
Erdem Meral
25,022 Points

Challenge 1:

def first_4(whatever):
    return whatever[:4]