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Command line applications powered by languages like Python provide a quick way to unlock productivity. By wrapping logic into stand-alone tools, developers can automate tedious tasks and customize environments regardless of which OS they use.
However, parsing arguments and handling all edge cases of user input is tricky to do from scratch. This is where the Click library shines for crafting professional-grade CLIs in Python.
In this hands-on tutorial, you’ll learn:
- Benefits of Click for writing command-line apps
- Options, arguments and parameters in Click
- Building a real-world utility with subcommands and more
Let’s dive in to unlock the power of Python on the command line!
Why Use Click for Command Line Apps?
While it’s possible to use just the sys library to parse command line arguments in Python, Click makes the entire experience more robust and user-friendly.
Some key advantages include:
- Easy argument parsing
- Handling invalid inputs
- Generating — help messages
