What is a Docstring in Python | EP-46 Docstring in Python | How to Use Docstrings in Python | Python
2Python documentation strings (or docstrings).Docstrings are a type of comment used in Python to document.They provide a concise explanation of what the code does, its parameters, return values,and any potential side effects.A docstring is placed immediately after the definition of a function. It's enclosed in triple single quotes”’ or “”” triple double quotes.All functions should have a docstring."""
1. Triple-Quoted Strings
"""This is the most common docstring format in Python. It involves using triple quotes (either single or double) to enclose the documentation text. Triple-quoted strings can span multiple lines and are often placed immediately below the function"""
def my_function():
'''Demonstrates triple double quotes
docstrings and does nothing really.'''
print("Using __doc__:",my_function.__doc__)
2. Google Style Docstrings
"""Google style docstrings follow a specific format and are inspired by Google’s documentation style guide. They provide a structured way to document Python code, including parameters, return values, and descriptions."""
def multiply_numbers(a, b):
"""
Multiplies two numbers and returns the result.
Args:
a (int): The first number.
b (int): The second number.
Returns:
int: The product of a and b.
"""
return a * b
print(multiply_numbers(3,5))
3.Numpydoc Style Docstrings
"""Numpydoc-style docstrings are widely used in the scientific and data analysis community, particularly for documenting functions and classes related to numerical computations and data manipulation. It is an extension of Google-style docstrings, with some additional conventions for documenting parameters and return values."""
def divide_numbers(a, b):
"""
Divide two numbers.
Parameters
----------
a : float
The dividend.
b : float
The divisor.
Returns
-------
float
The quotient of the division.
Raises
------
TypeError: If b is a zero
"""
if b == 0:
raise ValueError("Division by zero is not allowed.")
return a / b
print(divide_numbers(3,2))
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