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Python Python Collections (Retired) Tuples Combo

Blake Handson
Blake Handson
1,642 Points
Posted by Blake Handson
Blake Handson
1,642 Points

Can someone please explain this code challenge solution ?

Ok, so I think I kind of understand what's going on in this code challenge solution.

Here's what me thinks:

-first the function is defined -a tuple is created to hold values from the iterables -the index and value of iter1 is being matched with the index and value of iter2 and added to the output tuple

Am I getting this completely mixed up ?

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.
##iterables are just a list or something you can iterate through haha

def combo(iter1, iter2): 
    output = (): 

    for index, value in enumerate(iter1):    
        output.append((value, iter2[index]))

    return(output)
Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Blake,

This code won't pass as it is currently written. You have a few errors where you initialize your output variable.

output = ():

You have a colon at the end of the line which has to be removed and the output should be a list, not a tuple.

Tuples are immutable which means you can't change them by appending items to it.

1 Answer

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

It think you have the idea but I might state it a bit differently:

The indices are being matched up .. and then the values associated with them in each iterable are being combined into a tuple, which is then appended to your master list of tuples.

Blake Handson
Blake Handson
1,642 Points
Blake Handson
Blake Handson
1,642 Points

Awesome, thanks Steven I understand now. Thanks for you reply.