python

What is the purpose of a method? Enables changes in the implementation without affecting users of a class To access the instance variables of the object on which it acts Store the data for all objects created by the same class Provide comments about the program implementation Consider the following code segment: def mutate(self, newType) : self._type = newType self._mutations = self._mutations + 1 What is the name of the local variable in it: O mutate _mutations newType 0_type What happens if you try to open a file for reading that doesn't exist? A new file is created and opened. A run-time error occurs because the file does not exist. The statement is ignored. An environment error occurs