Python developers often make use of the comment system as, without the use of it, things can get real confusing, real fast. Comments are the useful information that the developers provide to make the reader understand the source code. It explains the logic or a part of it used in the code. Comments are usually helpful to someone maintaining or enhancing your code when you are no longer around to answer questions about it. These are often cited as a useful programming convention that does not take part in the output of the program but improves the readability of the whole program.
In the above example it can be seen that comments are ignored by the compiler during the execution of the program.
Comments are generally used for the following purposes:
- Code Readability
- Explanation of the code or Metadata of the project
- Prevent execution of code
- To include resources
Types of comments
There are three main kinds of comments in Python. They are:
- Single Line Comments: Python single line comment starts with hashtag symbol with no white spaces (#) and lasts till the end of the line. If the comment exceeds one line then put a hashtag on the next line and continue the comment. Python’s single line comments are proved useful for supplying short explanations for variables, function declarations, and expressions. See the following code snippet demonstrating single line comment:
# This is a comment
# Print “GeeksforGeeks !” to console
- Multi-Line Comments: Python multi-line comment is a piece of text enclosed in a delimiter
(""")on each end of the comment. Again there should be no white space between delimiter
("""). They are useful when the comment text does not fit into one line; therefore needs to span across lines. Multi-line comments or paragraphs serve as documentation for others reading your code. See the following code snippet demonstrating multi-line comment:
This would be a multiline comment in Python that
spans several lines and describes geeksforgeeks.
A Computer Science portal for geeks. It contains
well written, well thought
and well-explained computer science
and programming articles,
quizzes and more.
- Docstring Comments: Docstring is an in-built feature of Python, which is used to associate documentation that has been written with Python modules, functions, classes and methods. It is added right below the functions, modules or classes to describe what they do. In the Python, the docstring is then made available via the
"""Multiplies the value of a and b"""
# Print the docstring of multiply function
Multiplies the value of a and b
- Multiline comments in Python
- How do we create multiline comments in Python?
- How to write Comments in Python3?
- Python | Add Logging to a Python Script
- Python | Add Logging to Python Libraries
- twitter-text-python (ttp) module - Python
- Creating and updating PowerPoint Presentations in Python using python - pptx
- XML parsing in Python
- Twitter Sentiment Analysis using Python
- pprint : Data pretty printer in Python
- Desktop Notifier in Python
- Junk File Organizer in Python
- Tracking bird migration using Python-3
- Python Desktop News Notifier in 20 lines
- Send mail with attachment from your Gmail account using Python
- Hangman Game in Python
- How to get synonyms/antonyms from NLTK WordNet in Python?
- Convert Text to Speech in Python
- Speech Recognition in Python using Google Speech API
- Birthday Reminder Application in Python
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to email@example.com. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.