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google/python-fire

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Original source (github.com)
Tags: python command-line
Clipped on: 2018-08-17
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Image (Asset 1/4) alt= functions, classes, modules, objects, dictionaries, lists, tuples, etc. They all work!

Here's an example of calling Fire on a class.

import fire

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

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

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

Then, from the command line, you can run:

python calculator.py double 10  # 20
python calculator.py double --number=15  # 30

To learn how Fire behaves on functions, objects, dicts, lists, etc, and to learn about Fire's other features, see the Using a Fire CLI page.

For additional examples, see The Python Fire Guide.

Why is it called Fire?

When you call Fire, it fires off (executes) your command.

Where can I learn more?

Please see The Python Fire Guide.

Reference

Setup Command Notes
install pip install fire
Creating a CLI Command Notes
import import fire
Call fire.Fire() Turns the current module into a Fire CLI.
Call fire.Fire(component) Turns component into a Fire CLI.
Using a CLI Command Notes
Help command -- --help
REPL command -- --interactive Enters interactive mode.
Separator command -- --separator=X This sets the separator to X. The default separator is -.
Completion command -- --completion [shell] Generate a completion script for the CLI.
Trace command -- --trace Gets a Fire trace for the command.
Verbose command -- --verbose

Note that flags are separated from the Fire command by an isolated -- arg.

Disclaimer

This is not an official Google product.

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