curriculum/challenges/english/blocks/workshop-caesar-cipher/6819be9055828d65c813eec5.md
The isinstance() function returns True if its first argument is an instance of the second argument, and False otherwise:
print(isinstance('Hello World', str)) # True
print(isinstance(42, int)) # True
Replace the current condition of your if statement with an isinstance() call. Pass in shift as the first argument, and int as the second argument.
Your if statement should use isinstance(shift, int) as its condition.
({ test: () => assert(runPython(`_Node(_code).find_function("caesar").find_ifs()[0].find_conditions()[0].is_equivalent("isinstance(shift, int)")`)) })
def caesar(text, shift):
--fcc-editable-region--
if True:
--fcc-editable-region--
return 'Shift must be an integer value.'
alphabet = 'abcdefghijklmnopqrstuvwxyz'
shifted_alphabet = alphabet[shift:] + alphabet[:shift]
translation_table = str.maketrans(alphabet + alphabet.upper(), shifted_alphabet + shifted_alphabet.upper())
return text.translate(translation_table)
encrypted_text = caesar('freeCodeCamp', 3)
print(encrypted_text)