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

Posted by Nitin Kakkar
Nitin Kakkar
5,223 Points

Need help In Slices.py

Need help

slices.py 
def first_4(var):
    return var[:4]

def first_and_last_4(var):
    str = var[:4] + var[-4:]
    return(str)
def odds(var):
    return var[1::2]
def reverse_evens(var):
    x = var[1::-2]
    return x

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

Remember that the starting index for the "evens" will be different if the list length is an even or odd number. So you'll either need to compute the start value based on the length, or you can extract the evens first and then reverse them in a separate step.

Nitin Kakkar
Nitin Kakkar
5,223 Points

Thx