CODEWITHSUNDEEP
pythonfor-loop
bang
bang

Reputation: 181

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 should calculate to 6 (2 t's, 3 o's, 1 n)

Does anyone know how to do this?

Upvotes: 1

Views: 3460

Answers (2)

pjhades
pjhades

Reputation: 2038

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

Upvotes: 0

Blender
Blender

Reputation: 298582

Pretty straightforward:

count = 0

for letter in set(string1):
  count += string2.count(letter)

print(count)

Upvotes: 2

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