def getSlice(self,x,y):
        return self.sentence[x,y]


print(Sentence1.getSlice(0,12))

Traceback (most recent call last):
  File "C:/Users/michael/Desktop/Python homework/Assgn16/1question.py", line 24, in <module>
    print(Sentence1.getSlice(0,12))
  File "C:/Users/michael/Desktop/Python homework/Assgn16/1question.py", line 8, in getSlice
    return self.sentence[x,y]
TypeError: string indices must be integers