- Python Snacks
- Posts
- 4 Python Click package extensions you need right now
4 Python Click package extensions you need right now
If you've ever built a CLI application using Click, don't overlook these extensions.
If you’ve ever built a command line interface (CLI) application, you may have encountered the package Click.
Click allows you to easily create CLI applications in just a few lines of code with its intuitiveg decorator-based syntax and built-in support for arugment parsing, help generation, and command grouping.
There are other packages that help you create a CLI application, such as argparse; I did a thorough comparison between the two (and to boot: it’s Python Snack’s best performing article on Google!).
While click gives you a lot of functionality straight out of the gates, the community has created extensions, or additional libraries and tools, built on top of Click. Here, I want to give you a listing of 4 of them.
1. Click-Didyoumean
Click-Didyoumean improves usability by helping users recover from command typos. With this extension, your CLI tool becomes more user-friendly by suggesting corrections for mistyped commands:
import click
from click_didyoumean import DYMGroup
@click.group(cls=DYMGroup)
def cli():
pass
@cli.command()
def foo():
pass
@cli.command()
def bar():
pass
@cli.command()
def barrr():
pass
if __name__ == "__main__":
cli()
If we were to run this code (assuming we save it under clickdym.py
):
(env) user$ python clickdym.py barr
Usage: clickdym.py [OPTIONS] COMMAND [ARGS]...
Try 'clickdym.py --help' for help.
Error: No such command 'barr'.
Did you mean one of these?
barrr
bar
For more details, check out the Click-Didyoumean documentation.
2. Click-Help-Colors
Click-Help-Colors adds color customization to Click’s help messages, making them more visually appealing and easier to navigate. It’s ideal for creating polished, user-friendly CLI tools:

For more details, check out the Click-Help-Colors documentation.
3. Flask-CLI
Flask-CLI extends Click to integrate seamlessly with Flask applications, making it easier to manage and deploy Flask projects. Whether you’re running a development server or handling migrations, Flask-CLI streamlines the process with Click’s powerful CLI framework.
The main features of Flask-CLI are:
Replaces Flask-Script with Click support for a more modern and flexible CLI.
Simplifies the creation of custom commands tailored to your Flask app’s needs.
Makes routine tasks like running servers and managing database migrations effortless.
For more details, check out the Flask-CLI documentation.
4. sphinx-click
sphinx-click
is a Sphinx plugin that allows you to automatically extract documentation from a click-based application and include it in your docs.
To enable the plugin, add the extension to the list of extensions in your Sphinx conf.py file:
extensions = ['sphinx_click']
Once enabled, sphinx-click enables automatic documentation for click-based applications by way of a Sphinx directive.
For more information, visit the sphinx-click documentation.
📧 Join the Python Snacks Newsletter! 🐍
Want even more Python-related content that’s useful? Here’s 3 reasons why you should subscribe the Python Snacks newsletter:
Get Ahead in Python with bite-sized Python tips and tricks delivered straight to your inbox, like the one above.
Exclusive Subscriber Perks: Receive a curated selection of up to 6 high-impact Python resources, tips, and exclusive insights with each email.
Get Smarter with Python in under 5 minutes. Your next Python breakthrough could just an email away.
You can unsubscribe at any time.
Interested in starting a newsletter or a blog?
Do you have a wealth of knowledge and insights to share with the world? Starting your own newsletter or blog is an excellent way to establish yourself as an authority in your field, connect with a like-minded community, and open up new opportunities.
If TikTok, Twitter, Facebook, or other social media platforms were to get banned, you’d lose all your followers. This is why you should start a newsletter: you own your audience.
This article may contain affiliate links. Affiliate links come at no cost to you and support the costs of this blog. Should you purchase a product/service from an affiliate link, it will come at no additional cost to you.
Reply