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Joseph Ferrero
1,308 PointsNo idea why my code is working, I have tested it and it worked fine.
This seems to be ok, but its not passing, what am I doingg wrong?
def first_4(iterable):
return(iterable[:4])
def first_and_last_4(iterable):
return iterable[:4] + iterable[-4:]
def odds(iterable):
return(iterable[1::2])
def reverse_evens(iterable):
return(iterable[::-2])
1 Answer
Brian Polonia
25,139 PointsHere is my answer, it is the same as yours except I added a conditional to the last function (I'll explain below) and I removed the parenthesis from the return statements.
def first_4(iterable): # your original code - parenthesis on return statement
return iterable[:4]
def first_and_last_4(iterable): # your original code
return iterable[:4] + iterable[-4:]
def odds(utterable): # your original code - parenthesis on return statement
return iterable[1::2]
# Since we want to return only the even indices going backwards
# we check if the length of the iterable is even because this affects
# whether the starting point should be [-2] or [-1] determining that
# your starting index is even. Then, as you were doing already, use a -2 step.
def reverse_evens(iterable):
if len(iterable) % 2 == 0:
return iterable[-2::-2]
return iterable[-1::-2]
I hope this helps.
- BP