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Python Python Collections (Retired) Tuples Combo

Posted by Halcyon Abraham Ramirez
Halcyon Abraham Ramirez
846 Points

stuck at combos challenge task 1 :/

how exactly do we do this?

been tearing my hair out solving it for 2 days now :/

zippy.py 
# combo(['swallow', 'snake', 'parrot'], 'abc')
# Output:
# [('swallow', 'a'), ('snake', 'b'), ('parrot', 'c')]
# If you use list.append(), you'll want to pass it a tuple of new values.
# Using enumerate() here can save you a variable or two.
def combo(x,y):
   x = list(x)
   y = list(y)
   wow = dict(zip(x,y))
   for key, values in wow.items():
    print("{},{}".format(key, values))



print(["hello","hi","sup"], "abc")

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

Hello, Halcyon Abraham Ramirez , the answer to this problem doesn't have to be so complex. I see that your code made use of the zip function in Python; if we're gonna approach this code challenge with zip, the solution is one-liner.

def combo(x, y):
    return list(zip(x, y))
Halcyon Abraham Ramirez
Halcyon Abraham Ramirez
846 Points

without using zip how exactly do we solve it?

I know im just really confused and my answer above spits out the wrong answer too :/

so without using zip what is the solution?

William Li
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

Perhaps zip isn't how we should approach this code challenge, because I don't remember Kenneth ever mentioned about zip during the lecture; however, since you wrote your code using zip, I assumed you've done some research on the topic

Here's an alternate solution, without using zip. The problem description gave us 2 pieces of information.

Using enumerate() here can save you a variable or two.

So we are going to use enumerate() here.

Assume the iterables will be the same length.

That makes our jobs so much easier; we only need to iterate through one list, and using the index value to iterate through the other list as well.

def combo(x, y):
    result = []
    for index, item in enumerate(x):
        result.append( (item, y[index]) )
    return result
Halcyon Abraham Ramirez
Halcyon Abraham Ramirez
846 Points

Whoa so you basically enumerated through the x and use the index variable on x to y to get the the corresponding letter of y for that index? wow that genius

thank you very much just wow