Python error AttributeError str object has no attribute casefold

Question

I'm trying to use the casefold() function in python and I end up with the following error:

 if s1.casefold() == s2.casefold():
AttributeError: 'str' object has no attribute 'casefold'

code snippet:

s1 = 'Tatatata'
s2 = 'tatatata'
if s1.casefold() == s2.casefold():
    print ("equal")

Answer 1

Check your python version. Casefold is possible on version 3.3 and above. Upgrade your python and try again.