Private Module Functions in Python: How to Define Them

  1. Introduction
  2. Defining Private Functions in Python
  3. Why Define Private Functions?
  4. Conclusion


In Python, there is no concept of private functions or methods as such. However, there is a convention used by Python developers to define private functions. In this article, we will discuss how to define private module functions in Python.

Defining Private Functions in Python

To define a private function in Python, we use the underscore (_) symbol before the function name. This is a convention used by Python developers, indicating that the function is intended to be used only within the module.

def _private_function():
    # code for private function

Why Define Private Functions?

Private functions are useful when we want to hide implementation details from the user. For example, if we have a module that performs some complex calculations, we can define private functions to break down the calculations into smaller, more manageable parts. This way, the user only needs to call a single function to perform the calculations, without worrying about the implementation details.


In Python, we use the convention of using the underscore symbol before a function name to define private functions. Private functions are useful for hiding implementation details from the user and breaking down complex calculations into smaller parts. By following this convention, we can make our code more readable, maintainable, and secure.

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