Introduction

Python docstrings are a type of documentation that are used to describe the functionality of a module, function, class, or method within Python code. Docstrings are used to document the following:

What the object does
What arguments it takes
What it returns
Any exceptions that it may raise
Any other relevant information

Docstrings are written as comments in Python code and are enclosed in triple quotes. For example:

def my_function(arg1, arg2):
    """
    This function takes two arguments, arg1 and arg2, and returns their sum.
    """
    return arg1 + arg2

Types of Docstrings

There are two main types of docstrings in Python: one-line docstrings and multi-line docstrings.

One-Line Docstrings

One-line docstrings are used to document the function signature, which includes the function name, arguments, and the return value. They are written as a single line enclosed in triple quotes. For example:

def my_function(arg1, arg2):
    """Return the sum of arg1 and arg2."""
    return arg1 + arg2