# Python Fire: Effortlessly Create CLIs from Any Python Object

This repository profile is provided by osrepos.com, an open source repository discovery platform.

Source: osrepos.com
Repository profile: https://osrepos.com/repo/google-python-fire
Generated for open source discovery and AI-assisted research.

Python Fire is a powerful open-source library from Google that simplifies the creation of command-line interfaces (CLIs). It allows developers to automatically generate CLIs from virtually any Python object, making it incredibly easy to expose functions, classes, or modules as command-line tools. This streamlines development and enhances script usability.

GitHub: https://github.com/google/python-fire
OSRepos URL: https://osrepos.com/repo/google-python-fire

## Summary

Python Fire is a powerful open-source library from Google that simplifies the creation of command-line interfaces (CLIs). It allows developers to automatically generate CLIs from virtually any Python object, making it incredibly easy to expose functions, classes, or modules as command-line tools. This streamlines development and enhances script usability.

## Topics

- python
- cli
- command-line-interface
- developer-tools
- open-source
- google-oss

## Repository Information

Last analyzed by OSRepos: Sun Oct 26 2025 20:01:34 GMT+0000 (Western European Standard Time)
Detail views: 3
GitHub clicks: 1

## Safety Notice

OSRepos shares public repositories for knowledge and discovery only. Review source code, dependencies, licenses, and security implications before running or installing anything.

## Content

## Introduction
Python Fire is an open-source library developed by Google that enables developers to automatically generate command-line interfaces (CLIs) from any Python object. This powerful tool simplifies the process of creating interactive command-line tools from functions, classes, modules, or even dictionaries and lists. It's designed to be a simple, fast, and flexible way to turn your Python code into a usable CLI, aiding in development, debugging, and code exploration.

For more details, visit the official repository: [google/python-fire](https://github.com/google/python-fire){:target="_blank"}.

## Installation
Installing Python Fire is straightforward. You can use pip or conda:

**Using pip:**
bash
pip install fire


**Using conda:**
bash
conda install fire -c conda-forge


## Examples
Python Fire makes it incredibly easy to expose your Python code as a CLI. Here are a couple of basic examples:

**Example 1: Calling Fire on a Function**
python
import fire

def hello(name="World"):
  return "Hello %s!" % name

if __name__ == '__main__':
  fire.Fire(hello)

To run this from your terminal:
bash
python hello.py             # Output: Hello World!
python hello.py --name=David # Output: Hello David!
python hello.py --help      # Shows usage information.


**Example 2: Calling Fire on a Class**
python
import fire

class Calculator(object):
  """A simple calculator class."""

  def double(self, number):
    return 2 * number

if __name__ == '__main__':
  fire.Fire(Calculator)

To run this from your terminal:
bash
python calculator.py double 10       # Output: 20
python calculator.py double --number=15 # Output: 30


## Why Use Python Fire?
Python Fire offers several compelling reasons to integrate it into your workflow:

*   **Simplicity:** It's a remarkably simple way to create a CLI from any Python object, requiring minimal boilerplate code.
*   **Development and Debugging:** It serves as a helpful tool for rapidly developing and debugging Python code by providing immediate command-line access to your components.
*   **Code Exploration:** Easily explore existing codebases or turn other people's code into a functional CLI, making it easier to understand and interact with.
*   **Seamless Transition:** It facilitates an easier transition between Bash and Python, allowing you to leverage Python's power directly from the command line.
*   **Enhanced REPL:** It can set up your Python REPL with necessary modules and variables already imported, streamlining interactive sessions.

## Links
For more in-depth information and advanced usage, refer to the official resources:

*   **GitHub Repository:** [google/python-fire](https://github.com/google/python-fire){:target="_blank"}
*   **The Python Fire Guide:** [docs/guide.md](https://github.com/google/python-fire/blob/master/docs/guide.md){:target="_blank"}
*   **Using a Fire CLI:** [docs/using-cli.md](https://github.com/google/python-fire/blob/master/docs/using-cli.md){:target="_blank"}