What is the usage of documents in Python?

In Python, you can use docstrings to provide documentation for modules, functions, classes, or methods. Docstrings are typically placed at the beginning of object definitions and enclosed in either three single quotes (”’) or three double quotes (“””).

The documentation string can be accessed through the __doc__ attribute or viewed using the help() function. It can contain information such as a description of the object, parameter explanations, return value details, etc., aiding other developers in understanding and utilizing the code.

Here is an example demonstrating how to add a docstring to a function:

def add(a, b):
    """
    This function takes two numbers as input and returns their sum.

    Parameters:
    a (int): The first number.
    b (int): The second number.

    Returns:
    int: The sum of the two input numbers.
    """
    return a + b

# Accessing the docstring
print(add.__doc__)
# Using the help function
help(add)

When writing Python code, good documentation strings can improve the readability and maintainability of the code, it is recommended to add documentation strings when writing functions, classes, and other objects.