IoC (Inversion of Control) Dependency Injection

Support for automatic resolution of dependencies from factories.

These methods are built around data annotations and abc module.

Usage:

# Register factory with the framework
>>> pyapp.injection.register_factory(FooABC, foo_factory)

# Mark functions for injection and specify type
>>> @inject
... def my_function(foo: FooABC = Args(name="second")):
...    ...

When my_function is called, a concrete instance that implements FooABC is passed into the function.