Pset6 2017 - 'str' object has no attribute 'isaplha' - caesar.py

Question

My code for caesar.py receives errors when it checks if the plaintext is alphabetical, lowercase, or uppercase. The terminal says:

'str' object has no attribute 'isaplha'

Am I using the isalpha function correctly? Is there an issue with how I am including its library? Thanks in advance.

My code:

// edited out per academic honesty

Answer 1

Check your spelling! Sometimes it's the simple things ;)