concatenate each characters from 2 strings in a list

Question

I'm trying to concatenate each character from 2 strings in a list. Also, is it possible to do it by using list comprehension?

s = ['ab', 'cde']

Result:

['ac', 'ad', 'ae', 'bc', 'bd', 'be']

Answer 1

This will do it

result = [i + j for i in s[0] for j in s[1]]

Answer 2

This is probably a duplicate, but for completeness, here's your answer:

>>> import itertools
>>> s = ['ab', 'cde']
>>> [''.join(t) for t in itertools.product(*s)]
['ac', 'ad', 'ae', 'bc', 'bd', 'be']

Answer 3

Consider using itertools.product:

import itertools
s = ['ab', 'cde']
result = [''.join(item) for item in itertools.product(*s)]
print(result)  # ['ac', 'ad', 'ae', 'bc', 'bd', 'be']

There is no need to reimplement the wheel with list comprehensions.

Answer 4

please try this

s = ['ab', 'cde']

word1 = list(s[0])
word2 = list(s[1])

s2 = []

for c1 in word1:
  for c2 in word2:
      s2.append(c1+c2)

print(s2)