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Python Python Collections (2016, retired 2019) Tuples Combo

Posted by Roja kajoka
Roja kajoka
701 Points

can i have idea about that quiz?

help me please

combo.py 
# combo([1, 2, 3], 'abc')
# Output:
# [(1, 'a'), (2, 'b'), (3, 'c')]

3 Answers

Kobi Michaeli
Kobi Michaeli
31,461 Points
Kobi Michaeli
Kobi Michaeli
31,461 Points

Hi Gavin, you are correct, my bad, here is a different one

Gav Cooper
Gav Cooper
4,261 Points

That's basically how I did it in the end (though your solution is a bit shorter than mine!)

def combo(first, second):
    length = len(first)
    tuples_list = []
    for i in range(length):
        new_tup = first[i], second[i]
        tuples_list.append(new_tup)
    return tuples_list
Kobi Michaeli
Kobi Michaeli
31,461 Points
Kobi Michaeli
Kobi Michaeli
31,461 Points

Hi Gavin, in most cases length has no meaning (unless you are doing some extra stuff in your code) here is a shorter way and even that can be written in a shorter way

def combo(l,r):
    return [(l[i],r[i]) for i in range(0,len(l))]

but it is better to understand your code/or others code than to make it shorter and not so "readable"

Gav Cooper
Gav Cooper
4,261 Points

I like that version :) very succinct!

Oh I know there was no need to define length as its own variable, just in my head it felt a bit messy to write range(len(first)). It's probably just a quirk of mine more than anything!

Kobi Michaeli
Kobi Michaeli
31,461 Points
Kobi Michaeli
Kobi Michaeli
31,461 Points

here is an example:

def combo(l,r):
    merged = []
    for i in range(0,len(l)):
        merged.append((l[i],r[i]))
    return merged
Gav Cooper
Gav Cooper
4,261 Points

If you use the zip function it doesn't count is as correct (I know this because I've just tried it!)