Python Count the number of substring in list from other string list without duplicates

Question

I have two list:

main_list = [\'Smith\', \'Smith\', \'Roger\', \'Roger-Smith\', \'42\']
master_list = [\'Smith\', \'Roger\']

I want to coun

Answer 1

You can do it other way around. Create list that will contain only elements from main_list that have substring from master_list

temp_list = [ string for string in main_list if any(substring in string for substring in master_list)]

Now temp_list looks like this:

['Smith', 'Smith', 'Roger', 'Roger-Smith']

So the length of temp_list is your answer.