What is the difference between a method and a function in Python?
Benjamin C

In Python, both methods and functions are used to define reusable blocks of code. However, they differ in terms of their definition, usage, and the way they interact with objects. Here's a detailed explanation of the differences between methods and functions: Definition: - Function: A function is a named block of code that takes zero or more input arguments, performs a specific task, and optionally returns a value. Functions are defined using thedef keyword. - Method: A method is a function that belongs to a class or an object. It is defined within a class and operates on instances (objects) of that class. Usage: - Function: Functions can be used independently and can be called from anywhere in the program. - Method: Methods are associated with objects or classes and are typically called on instances (objects) of a class. Syntax: - Function: Functions are defined using thedef keyword, followed by the function name, a pair of parentheses( ), and a colon:. The function body is indented below the definition.

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def my_function(arg1, arg2):
    # function body
    return result

- Method: Methods are defined within a class using the same syntax as functions. They are associated with a class and are usually defined with a special first parameter calledself, which represents the instance the method is called on.

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class MyClass:
    def my_method(self, arg1, arg2):
   # method body
   return result

Invocation: - Function: Functions are invoked by calling the function name followed by a pair of parentheses( ) with the necessary arguments.

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my_function(arg1, arg2)

- Method: Methods are invoked on instances (objects) of a class using the dot notation, where the instance is followed by the method name and a pair of parentheses( ) with the necessary arguments.

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my_object = MyClass()
my_object.my_method(arg1, arg2)

Interaction with Objects: - Function: Functions are independent of objects. They can be defined and called without any relation to specific objects. - Method: Methods are associated with objects or classes. They operate on and can modify the state of objects they are called on. Theself parameter allows methods to access the object's attributes and other methods. Summary: In summary, functions and methods share the purpose of defining reusable blocks of code in Python. Functions are standalone and can be used independently, while methods are associated with objects or classes and operate on instances of those classes. Methods can access and modify the state of objects they are called on through theself parameter. Understanding the differences between methods and functions is important for object-oriented programming in Python and for writing organized and maintainable code.

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