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Python Python Collections (Retired) Tuples Combo

Posted by Raph Hennessy
Raph Hennessy
2,197 Points

Why is the incorrect?

I wrote my code for this code challenge, and got this error:

Bummer! Didn't get the right output! Expected (10,'T'), got (10,'T')

Like, I think i'm missing something, because the expected and got values are identical. I also tried running this in the IDE and it worked perfectly.

Any help would be appreciated. Thanks :)

zippy.py 
# 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(itr1,itr2):
  tup_list = tuple(zip(itr1,itr2))
  return tup_list

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,441 Points

You are very close. You are correct that the zip() function must be wrapped in a function to extract all the values. The key is the challenge asks for a function that "returns a list of tuples", not a tuple of tuples. Change your wrapping tuple() to list() to pass the challenge:

def combo(itr1,itr2):
    tup_list = list(zip(itr1,itr2))  # <-- changed to list()
    return tup_list
Raph Hennessy
Raph Hennessy
2,197 Points

Thank you! It works now :)