How do i add two lists' elements into one list?

Question

For example, I have a list like this:

list1 = ['good', 'bad', 'tall', 'big']

list2 = ['boy', 'girl', 'guy', 'man']

and I want to make a list like this:

list3 = ['goodboy', 'badgirl', 'tallguy', 'bigman']

I tried something like these:

list3=[]
list3 = list1 + list2

but this would only contain the value of list1

So I used for :

list3 = []
for a in list1:
 for b in list2:
  c = a + b
  list3.append(c)

but it would result in too many lists(in this case, 4*4 = 16 of them)

Answer 1

You can use list comprehensions with zip:

list3 = [a + b for a, b in zip(list1, list2)]

zip produces a list of tuples by combining elements from iterables you give it. So in your case, it will return pairs of elements from list1 and list2, up to whichever is exhausted first.

Answer 2

A solution using a loop that you try is one way, this is more beginner friendly than Xions solution.

list3 = []
for index, item in enumerate(list1):
    list3.append(list1[index] + list2[index])

This will also work for a shorter solution. Using map() and lambda, I prefer this over zip, but thats up to everyone

list3 = map(lambda x, y: str(x) + str(y), list1, list2);