Python, space in a encryption

Question

I have a encryption that works but I cannot seem to be able to put a space. Code:

A = ‘abcdefghijklmnopqrstuvwxyz’

word = ‘like me’
output = ‘’

for letters in word:
index_letter = A.find(letters)
output += A[25-index_letter]

print(output)

When I run the code it says the integer cannot be found or str is not an integer?

Answer 1

Add a space in the string A.

Answer 2

if letters == ' ':
output += ' '

Its best to include spaces if ur going to do a ceasar cypher. Here is my implementation. I spread it out some to make it more understandable. I handled spaces by ignoring them:

https://code.sololearn.com/cyQGfpp08V0C/?ref=app