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

Posted by Dennis Murekachiro
Dennis Murekachiro
2,917 Points

OK, try this one on for size: create a new function named odds that ret

i keep getting an oops message. where am i going wrong

slices.py 
def first_4 (iterable):
    return iterable [0:4]
def first_and_last4 (iterable):
    return iterable [:4] + iterable [-4::1]
def odds (iterable):
    return iterable [1::2]

3 Answers

Dennis Murekachiro
Dennis Murekachiro
2,917 Points
Dennis Murekachiro
Dennis Murekachiro
2,917 Points

def first_4 (iterable): return iterable [0:4] def first_and_last4 (iterable): return iterable [:4] + iterable [-4::1] def odds (iterable): return iterable [1::2]

A Wood
A Wood
1,666 Points
A Wood
A Wood
1,666 Points

You just had a typing error on your second function, it should be "first_and_last_4" you have "first_and_last4". Here is your code with the error fixed.

def first_4 (iterable):
    return iterable [0:4]

def first_and_last_4 (iterable):
    return iterable [:4] + iterable [-4::1]

def odds (iterable):
    return iterable [1::2]
Marie Lu
Marie Lu
179 Points

A Wood Wouldn't it need to be [0::2] because then it starts from 1 and then add two it becomes 3 and then add 2 it becomes 5, etc?

def odds (iterable):
    return iterable [0::2]
Dennis Murekachiro
Dennis Murekachiro
2,917 Points
Dennis Murekachiro
Dennis Murekachiro
2,917 Points

Thank you