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Title: Click and Python: Build Extensible and Composable CLI Apps – Real Python

Open Graph Title: Click and Python: Build Extensible and Composable CLI Apps – Real Python

Description: In this tutorial, you'll learn how to use the Click library to build robust, extensible, and user-friendly command-line interfaces (CLI) for your Python automation and tooling scripts.

Open Graph Description: In this tutorial, you'll learn how to use the Click library to build robust, extensible, and user-friendly command-line interfaces (CLI) for your Python automation and tooling scripts.

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?subject=Python article for you&body=Click and Python: Build Extensible and Composable CLI Apps on Real Python https://realpython.com/python-click/

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Table of Contentshttps://realpython.com/python-click/#toc
Creating Command-Line Interfaces With Click and Pythonhttps://realpython.com/python-click/#creating-command-line-interfaces-with-click-and-python
Why Use Click for CLI Developmenthttps://realpython.com/python-click/#why-use-click-for-cli-development
How to Install and Set Up Click: Your First CLI Apphttps://realpython.com/python-click/#how-to-install-and-set-up-click-your-first-cli-app
Adding Arguments to a Click Apphttps://realpython.com/python-click/#adding-arguments-to-a-click-app
Adding Basic Argumentshttps://realpython.com/python-click/#adding-basic-arguments
Using Path Argumentshttps://realpython.com/python-click/#using-path-arguments
Accepting Variadic Argumentshttps://realpython.com/python-click/#accepting-variadic-arguments
Taking File Argumentshttps://realpython.com/python-click/#taking-file-arguments
Providing Options in Your Click Appshttps://realpython.com/python-click/#providing-options-in-your-click-apps
Adding Single-Value Optionshttps://realpython.com/python-click/#adding-single-value-options
Creating Multi-Value Optionshttps://realpython.com/python-click/#creating-multi-value-options
Specifying an Option Multiple Timeshttps://realpython.com/python-click/#specifying-an-option-multiple-times
Defining Options as Boolean Flagshttps://realpython.com/python-click/#defining-options-as-boolean-flags
Creating Feature Switcheshttps://realpython.com/python-click/#creating-feature-switches
Getting an Option’s Value From Multiple Choiceshttps://realpython.com/python-click/#getting-an-options-value-from-multiple-choices
Getting Options From Environment Variableshttps://realpython.com/python-click/#getting-options-from-environment-variables
Prompting the User for Input Valueshttps://realpython.com/python-click/#prompting-the-user-for-input-values
Providing Parameter Types for Arguments and Optionshttps://realpython.com/python-click/#providing-parameter-types-for-arguments-and-options
Creating Subcommands in Clickhttps://realpython.com/python-click/#creating-subcommands-in-click
Registering Subcommand Right Awayhttps://realpython.com/python-click/#registering-subcommand-right-away
Deferring Subcommand Registrationhttps://realpython.com/python-click/#deferring-subcommand-registration
Tweaking Usage and Help Messages in a Click Apphttps://realpython.com/python-click/#tweaking-usage-and-help-messages-in-a-click-app
Documenting Commands and Optionshttps://realpython.com/python-click/#documenting-commands-and-options
Documenting Argumentshttps://realpython.com/python-click/#documenting-arguments
Preparing a Click App for Installation and Usehttps://realpython.com/python-click/#preparing-a-click-app-for-installation-and-use
Create a Project Layout for Your CLI Apphttps://realpython.com/python-click/#create-a-project-layout-for-your-cli-app
Write a pyproject.toml File for Your Click Projecthttps://realpython.com/python-click/#write-a-pyprojecttoml-file-for-your-click-project
Create a Virtual Environment and Install Your Click Apphttps://realpython.com/python-click/#create-a-virtual-environment-and-install-your-click-app
Conclusionhttps://realpython.com/python-click/#conclusion
https://realpython.com/feedback/survey/article/python-click/liked/?from=article-sidebar
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Leodanis Pozo Ramoshttps://realpython.com/python-click/#author
https://realpython.com/python-click/#reader-comments
intermediatehttps://realpython.com/tutorials/intermediate/
devopshttps://realpython.com/tutorials/devops/
pythonhttps://realpython.com/tutorials/python/
toolshttps://realpython.com/tutorials/tools/
Creating Command-Line Interfaces With Click and Pythonhttps://realpython.com/python-click/#creating-command-line-interfaces-with-click-and-python
Why Use Click for CLI Developmenthttps://realpython.com/python-click/#why-use-click-for-cli-development
How to Install and Set Up Click: Your First CLI Apphttps://realpython.com/python-click/#how-to-install-and-set-up-click-your-first-cli-app
Adding Arguments to a Click Apphttps://realpython.com/python-click/#adding-arguments-to-a-click-app
Adding Basic Argumentshttps://realpython.com/python-click/#adding-basic-arguments
Using Path Argumentshttps://realpython.com/python-click/#using-path-arguments
Accepting Variadic Argumentshttps://realpython.com/python-click/#accepting-variadic-arguments
Taking File Argumentshttps://realpython.com/python-click/#taking-file-arguments
Providing Options in Your Click Appshttps://realpython.com/python-click/#providing-options-in-your-click-apps
Adding Single-Value Optionshttps://realpython.com/python-click/#adding-single-value-options
Creating Multi-Value Optionshttps://realpython.com/python-click/#creating-multi-value-options
Specifying an Option Multiple Timeshttps://realpython.com/python-click/#specifying-an-option-multiple-times
Defining Options as Boolean Flagshttps://realpython.com/python-click/#defining-options-as-boolean-flags
Creating Feature Switcheshttps://realpython.com/python-click/#creating-feature-switches
Getting an Option’s Value From Multiple Choiceshttps://realpython.com/python-click/#getting-an-options-value-from-multiple-choices
Getting Options From Environment Variableshttps://realpython.com/python-click/#getting-options-from-environment-variables
Prompting the User for Input Valueshttps://realpython.com/python-click/#prompting-the-user-for-input-values
Providing Parameter Types for Arguments and Optionshttps://realpython.com/python-click/#providing-parameter-types-for-arguments-and-options
Creating Subcommands in Clickhttps://realpython.com/python-click/#creating-subcommands-in-click
Registering Subcommand Right Awayhttps://realpython.com/python-click/#registering-subcommand-right-away
Deferring Subcommand Registrationhttps://realpython.com/python-click/#deferring-subcommand-registration
Tweaking Usage and Help Messages in a Click Apphttps://realpython.com/python-click/#tweaking-usage-and-help-messages-in-a-click-app
Documenting Commands and Optionshttps://realpython.com/python-click/#documenting-commands-and-options
Documenting Argumentshttps://realpython.com/python-click/#documenting-arguments
Preparing a Click App for Installation and Usehttps://realpython.com/python-click/#preparing-a-click-app-for-installation-and-use
Create a Project Layout for Your CLI Apphttps://realpython.com/python-click/#create-a-project-layout-for-your-cli-app
Write a pyproject.toml File for Your Click Projecthttps://realpython.com/python-click/#write-a-pyprojecttoml-file-for-your-click-project
Create a Virtual Environment and Install Your Click Apphttps://realpython.com/python-click/#create-a-virtual-environment-and-install-your-click-app
Conclusionhttps://realpython.com/python-click/#conclusion
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command-line interface (CLI)https://en.wikipedia.org/wiki/Command-line_interface
argparsehttps://realpython.com/command-line-interfaces-python-argparse/
standard libraryhttps://docs.python.org/3/library/index.html
Typerhttps://realpython.com/python-typer-cli/
decoratorshttps://realpython.com/primer-on-python-decorators/
terminalhttps://realpython.com/terminal-commands/
Click here to download the sample codehttps://realpython.com/bonus/python-click-code/
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Clickhttps://click.palletsprojects.com/en/8.0.x/
command-line interfaces (CLIs)https://realpython.com/python-command-line-arguments/#the-command-line-interface
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application programming interface (API)https://en.wikipedia.org/wiki/API
decoratorshttps://realpython.com/primer-on-python-decorators/
arguments, options, and subcommandshttps://realpython.com/command-line-interfaces-python-argparse/#commands-arguments-options-parameters-and-subcommands
Functionshttps://realpython.com/defining-your-own-python-function/
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deque recipeshttps://docs.python.org/3/library/collections.html#deque-recipes
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stringhttps://realpython.com/python-strings/
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main API pagehttps://api.nasa.gov/
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Python & APIs: A Winning Combo for Reading Public Datahttps://realpython.com/python-api/
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datetimehttps://realpython.com/python-datetime/
custom parameter typehttps://click.palletsprojects.com/en/8.0.x/parameters/#implementing-custom-types
https://realpython.com/python-click/#creating-subcommands-in-click
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