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Python

Posted by Brittany Allen
Brittany Allen
9,803 Points

Combo Tuple Challenge

I've been working at the combo challenge for quite a while and I feel like I'm close, but I still don't quite have it. I get the error message "Got [(1, 'T'), (2, 'r')], expected [(1, 'T'), (2, 'r'), (3, 'e'), (4, 'e'), (5, 'h'), (6, 'o'), (7, 'u'), (8, 's'), (9, 'e')]".

Here is the link to the challenge 

def combo(iterable1, iterable2):
  combo_list = []
  a = []
  b = []
  index = 0
  for item in iterable1:
    a.append(item)
  for item in iterable2:
    b.append(item)
  for item in a, b:
    c = a[index], b[index]
    combo_list.append(c)
    del c
    index += 1
  return combo_list

4 Answers

Juan Martin
Juan Martin
14,335 Points

Hello friend, let me show you what I did, it was with 1 variable and 1 loop. Hope this helps :)

def combo(iterable1,iterable2):
  tuple_list= []
  for idx in range(len(iterable1)):
    tuple_list.append((iterable1[idx],iterable2[idx]))
  return tuple_list
Brittany Allen
Brittany Allen
9,803 Points

Thank you so much! I knew I must have been making it too complicated.

Juan Martin
Juan Martin
14,335 Points

You're welcome :) I'm glad I could help you

Taig Mac Carthy
Taig Mac Carthy
8,139 Points

You da best

Kenneth Love
STAFF
Kenneth Love
Treehouse Guest Teacher
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

This is also a great challenge to use enumerate() on. It should save you a lookup.

Chris Saden
Chris Saden
8,652 Points
Chris Saden
Chris Saden
8,652 Points

There's also a handy function called zip(). Try running zip([1, 2, 3], ['a', 'b', 'c']) or look up the documentation for zip.

[MOD: fixed formatting]

Kenneth Love
Kenneth Love
Treehouse Guest Teacher
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

Aww, don't make it easy! :)

But, yes, zip() does exist and I did just make you build it yourself.

Trust Mujaka
Trust Mujaka
1,821 Points
Trust Mujaka
Trust Mujaka
1,821 Points

My solution using the enumerate method.

def combo (itr1, itr2): tuple_list = [] for index, value in enumerate (itr1): tuple_list.append((value, itr2[index])) return tuplelist