How to join strings from a Cartesian product of two lists

Question

I have two lists of strings:

letters = [\'abc\', \'def\', \'ghi\']
numbers = [\'123\', \'456\']

I want to for loop through them to create a lis

Answer 1

Thank you for your answers! I simplified the case, so all of the above solutions work well, however in the real problem I'm working on I want to add more lines of code in between that would iterate through both lists. I completed it nesting those for loops:

for letter in letters:
   for number in numbers:
      print(letter+number)
      # many many lines of more code

Anyway, thanks a lot for your help!