provider is a "registry system" inspired by py.test fixtures. It allows you to inject dependencies to functions based on argument names. Work in progress.
from provider import Provider
def hello():
return "Hello, world!"
def printer(message):
print(message)
injector = Provider()
injector.register(hello, name='message')
injector.call(printer) # => "Hello, world!"(Yes, contrived.)
You can also decorate provider functions with @provide and call scan() on the registry object to discover them.
Practical application pending. One idea is a Pyramid view mapper allowing arbitrary signatures:
def my_view(request, database, some_other_service):
database.get_by_id(request.params['id'])
some_other_service.do_stuff()
...MIT. See LICENSE.