In Python, comments are used to provide explanations or notes about the code. They are ignored by the interpreter and do not affect the execution of the program.
Comments are an essential part of any programming language, as they help make the code more readable and understandable for others (or for yourself when you come back to the code later).
Single Line Comments
The simplest form of commenting in Python is the single-line comment.
These comments start with the pound sign # and continue until the end of the line.
Here is an example of a single-line comment:
# This is a single-line comment x = 5 # This is also a single-line comment
In Python, you can also create multi-line comments by using triple quotes """ (either single or double).
These comments can span multiple lines and are often used to provide explanations or notes about large blocks of code.
Here is an example of a multi-line comment:
""" This is a multi-line comment """ x = 5 y = 10 # The above lines are also multi-line comments
A special type of multi-line comment in Python is the docstring.
Docstrings are string literals that appear as the first statement in a module, function, class, or method definition.
They are used to provide a brief description of the code and are often used for documentation purposes.
Here is an example of a docstring:
def add(x, y): """ This function takes two numbers as input and returns their sum. """ return x + y
Python also allows you to add comments directly next to the code that they are describing.
These comments are known as in-line comments and they start with the pound sign #.
Here is an example of an in-line comment:
x = 5 # This is an in-line comment y = 10 # This is another in-line comment
In this guide, we have covered the different types of comments that can be used in Python, including single-line comments, multi-line comments, docstrings, and in-line comments.
Comments are an essential part of any programming language, and they help make the code more readable and understandable for others (or for yourself when you come back to the code later).
We hope that this guide has helped you understand how to use comments in Python and how to make your code more readable and understandable.