glorpen-di

===================== Glorpen IOC Container

.. image:: https://travis-ci.org/glorpen/glorpen-di.svg?branch=master

.. image:: https://readthedocs.org/projects/glorpen-di/badge/?version=latest

Another Dependency Injection library for Python.

This package has following three guidelines:

• any class configured by Container mechanism should not be modified in any way
• there is no need for external services definition files for Container
• no Container compiling and service tagging - we have introspection and dynamic language for this task

And so this package provides:

• no xml configuration
• no annotations (more cons than pros)
• no changes to services code

Official repositories

For forking and other funnies.

BitBucket: https://bitbucket.org/glorpen/glorpen-di

GitHub: https://github.com/glorpen/glorpen-di

Supported design patterns

Service instance can be created by:

• factory service
• calling class object with arguments

Instance options can be altered by:

• constructor arguments
• setters
• calling methods
• using configurator service

Each service has defined scope, service cannot request other service from narrower scope.

Injecting services and parameters

.. code-block:: python

from glorpen.di import Container

class MyParamService(object): pass

class MyService(object): def init(self, obj, text, value): super(MyService, self).init() print("service instance: %s" % obj) print("container parameter: %s" % text) print("provided value: %s" % value)

c = Container()

c.add_service(MyParamService) c.add_parameter('my-param', "value from container") c.add_service(MyService).kwargs(obj__svc=MyParamService, text__param="my-param", value="defined value")

c.get(MyService)

Running snippet will print:

::

service instance: <main.MyParamService object at 0x7f2fef6e9828> container parameter: value from container provided value: defined value

See https://glorpen-di.readthedocs.io/en/latest/ for code examples and more documentation.