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A simple dependency injection container

Project Description

Simple Dependency Injection Container inspired by Pimple.


Using pip:

# pip install rumple


$ git clone
$ cd rumple
# python install


from rumple import Container

c1 = Container()
c2 = Container({
    'param': 'value',
    'service': lambda: object()

Defining services

from rumple import Container

class Service(object):

class AnotherService(object):
    def __init__(self, service):
        self.service = service

container = Container()
container['service'] = lambda: Service()
container['another_service'] = lambda c: AnotherService(c['service'])
another_service = container['another_service']
assert isinstance(another_service, AnotherService)
assert another_service.service is container['service']

Defining parameters

from rumple import Container

container = Container()
container['parameter'] = 'value'
assert container['parameter'] == 'value'

Extending services

from rumple import Container

class Service(object):
    def __init__(self):
        self.optional_dependency = None

    def set_optional_dependency(self, dependency):
        self.optional_dependency = dependency

class OptionalDependency(object):

def extend_service(service, container):  # Note: you can omit "container" argument
    return service

container = Container()
container['service'] = lambda: Service()
container['optional_dependency'] = lambda: OptionalDependency()
container.extend('service', extend_service)


from rumple import Container, extend, share, value

class Provider(object):
    def service(self):
        return object()

    def another_service(self):
        return object()

    def service_for_extend(self):
        return object()

    def first_option(self):
        return 'value_1'

    def second_option(self):
        return 'value_2'

    def _ignored(self):
        return 'value'

class AnotherProvider(object):
    def extend_service(self, service_for_extend):
        assert isinstance(service_for_extend, object)
        return str(object)

container = Container()
assert isinstance(container['service'], object)
assert isinstance(container['renamed_service'], object)
assert isinstance(container['service_for_extend'], str)
assert container['first_option'] == 'value_1'
assert container['second_option_renamed'] == 'value_2'
assert '_ignored' not in container

Iterating through a container

from rumple import Container

container = Container({'k1': 'v1', 'k2': 'v2'})
for item in container:

# Output:
# ('k1', 'v1')
# ('k2', 'v2')


0.1.0 (15.07.2015)

  • First release


  • Fork and clone it
  • Create your feature branch (git checkout -b awesome-feature)
  • Make your changes
  • Write/update tests, if it’s necessary
  • Update, if it’s necessary
  • Push your branch (git push origin awesome-feature)
  • Send a pull request


The MIT License (MIT)

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