The main problem is that the previous method name is not defined.
def get_previous_method_name(): return get_current_method_name() + "_previous"
This code defines a function that returns the name of the previous method. The function first gets the name of the current method and then appends “_previous” to it.
In Python, a caller name is a string that uniquely identifies the caller of a function or method.
What is a method
A method in Python is a function that takes one or more arguments.