How to Install Fire in Python Step by Step

Fire is a Python library for creating CLI tools. It turns any Python object into a command-line interface. This guide will help you install Fire easily.

What Is Fire?

Fire is a library developed by Google. It automates CLI generation. It works with functions, classes, and objects. No extra code is needed.

Prerequisites

Before installing Fire, ensure you have Python installed. You can check using the python --version command. Python 3.6 or higher is recommended.

python --version

Python 3.9.7

Install Fire Using pip

The easiest way to install Fire is via pip. Open your terminal and run the following command.

pip install fire

Wait for the installation to complete. If successful, Fire is ready to use.

Verify Installation

After installing, verify Fire works. Run a simple Python script with Fire. Create a file named test_fire.py.

import fire

def greet(name):
    return f"Hello, {name}!"

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

Run the script from the terminal.

python test_fire.py --name=World

Hello, World!

If you see the output, Fire is installed correctly.

Troubleshooting

If you encounter errors, check Python and pip versions. Ensure they are up to date. For ModuleNotFoundError, see our guide on solving ModuleNotFoundError.

Basic Fire Example

Here’s a basic example using Fire with a class. Create a file named calculator.py.

import fire

class Calculator:
    def add(self, a, b):
        return a + b

    def subtract(self, a, b):
        return a - b

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

Run the script with commands.

python calculator.py add 10 5

15

Fire automatically generates CLI commands for the class methods.

Conclusion

Installing Fire in Python is simple. Use pip install fire and start building CLI tools. Fire saves time and reduces boilerplate code. Try it in your next project.