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Thananjaya Chakravarthy4,672 Points
how to return in reverse order of even index?
I have carried out same codes in the workspace. I got the output.
but.. why am not getting during practice session..?
def first_4(name): hi=name[0:4] return hi def first_and_last_4(L): return L[:4] + L[-4:] def odds(c): return c[1::2] def reverse_evens(s): if len(s)%2 == 0: return s[-1::-2] else: return s[-2::-2]
Kenneth LoveTreehouse Guest Teacher
All ordered/indexed iterables can be sliced (you can't slice dicts or sets as they don't have an order/index).
Slices are, themselves, ordered and indexed.
How would you get all of the items with an even index? How would you reverse an iterable with a slice?
Jason AnelloCourses Plus Student 94,610 Points
An even length iterable would end on an odd index. Make sure that you're starting on the correct item from the end.