Occurence Of Characters In Common In Two Strings

I want to use a for loop to calculate the number of times a character in one string occurs in another string. e.g. if string1 = 'python' and string2 = 'boa constrictor' then it sho

Solution 1:

Pretty straightforward:

count = 0

for letter inset(string1):
  count += string2.count(letter)

print(count)

Solution 2:

Use dict comprehension {ch:string2.count(ch) for ch in string1 if ch in string2}

I forgot you need a for loop and sum over all letters.

count=0for ch in string1:if ch in string2:count+=string2.count(ch)