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Robert Rajczyk
3,699 PointsProblem with "combo" challenge.
Hello,
I don't know why my code doesn't work. Can you help me?
Best regards, Robert
# combo([1, 2, 3], 'abc')
# Output:
# [(1, 'a'), (2, 'b'), (3, 'c')]
# If you use .append(), you'll want to pass it a tuple of new values.
def combo(it1, it2):
list = []
i = 0
while i < len(it1):
list.extend("{}{}".format(it1[i], it2[i]))
i = i + 1
return list
1 Answer
Andreas cormack
Python Web Development Techdegree Graduate 33,011 PointsHi Robert
Actually there is nothing wrong with the way you approached this challenge, although you should use the append method rather than the extend method as you are creating a new list. Also because the challenge requires the second part of each tuple to be in quotes, it can become quite hard to accomplish this using string concatenation or the format method. I prefer to create the tuple and then add it to the list.
see below.
# combo([1, 2, 3], 'abc')
# Output:
# [(1, 'a'), (2, 'b'), (3, 'c')]
# If you use .append(), you'll want to pass it a tuple of new values.
def combo(it1, it2):
list = []
i = 0
while i < len(it1):
tup=(it1[i],it2[i]) # create the tuple and then append to the list
list.append(tup)
i = i + 1
return list