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helmi al kindy
1,371 PointsThis wasn't covered in the videos
I have tried using boolean operators but it won't go through. What can I do ?
def first_4(q):
return q[0:4]
def odds(w):
return w[1::2]
def first_and_last_4(e):
return e[0:4] and e[-1:-4]
2 Answers
Tony Gibbons
1,573 PointsThis worked for me:
def first_and_last_4(x):
return x[:4] + x[-4:]
Hanley Chan
27,771 PointsHi,
This function should return an iterable made of the first 4 and the last 4 items of the iterable. There is no need to use boolean operators here. You could concatenate the first four items and the last four items (iterable1 + iterable2).
Looks like you got the first four items correct in your code, but the last four needs work.
Hint: You can get the number of elements in the iterable e with the len() function. You may want to use this in your slice to get the last four elements.
def first_and_last_4(e):
return e[0:4] and e[-1:-4]
Hope this helps.