empower 0.2.1

Goodbye Inheritance

empower

Goodbye Inheritance!!!

Install

pip install empower

Usage

You have a Duck class without any methods.

# mod/__init__.py

class Duck:
    ...

You define a trait Fly for Duck

# mod/fly.py

from empower import impl, Trait

from . import Duck

@impl(Duck)
class Fly(Trait):
    def fly(self):
        return "fly"

And you define another trait Run for Duck

# mod/run.py

from empower import impl, Trait

from . import Duck


@impl(Duck)
class Run(Trait):
    def run(self):
        return "run"

Now you can add empower Duck

# main.py

from mod import Duck
from empower import use

duck = Duck()

use("mod.fly")  # load fly trait
use("mod.run")  # load run trait

assert duck.fly() == "fly"
assert duck.run() == "run"