Here, key differences between Method and Function in Python are explained. Java is also an OOP language, but their is no concept of Function in it. But Python has both concept of Method and Function.

In Python, both methods and functions are used to perform a certain task. However, there are some differences between the two.

A method is a function that is associated with an object. It is defined within a class and can be called on an instance of that class. A method can modify the state of an object it is called on, and it can access and modify the attributes of the object. For example, if we have a class called "Car", we can define a method called "drive" that allows the car to move. We can then call the method on an instance of the class, like this: "my_car.drive()".

A function, on the other hand, is a block of code that performs a specific task. It is not associated with an object and can be called independently. A function can take arguments, perform calculations, and return a value. For example, we can define a function called "add" that takes two arguments and returns their sum. We can then call the function like this: "result = add(3, 5)".

Another difference is in how they are called. Methods are called on an object, while functions are called independently. Additionally, methods must always have at least one argument, which is the object they are called on. Functions may or may not take arguments.

In summary, methods are functions that are associated with objects and can modify their state, while functions are independent blocks of code that perform a specific task.