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Another simple ioc framework for python.


from anyioc import ServiceProvider
provider = ServiceProvider()
provider.register_singleton('the key', lambda ioc: 102) # ioc will be a `IServiceProvider`
value = provider.get('the key')
assert value == 102



By default, you can use methods of ServiceProvider to register services with lifetime:

  • register_singleton(key, factory)
  • register_scoped(key, factory)
  • register_transient(key, factory)
  • register(key, factory, lifetime)
  • register_value(key, value)
  • register_group(key, keys)
  • register_bind(new_key, target_key)

Global ServiceProvider

Process scoped

By default, you should create your ServiceProvider.

However, we can use a global ServiceProvider to share services in python process.

from anyioc.g import ioc

# ioc is a global `ServiceProvider` instance

Module scoped and namespace scoped

Also we have module scoped ServiceProvider and namespace scoped ServiceProvider.

If you have a project:

  |- your_package/
     |- a/

Then module scoped ServiceProvider:

# file:
from anyioc.g import get_module_provider

provider = get_module_provider()
assert provider is get_module_provider('your_package.a.b')

and namespace scoped ServiceProvider:

# file:
from anyioc.g import get_namespace_provider

provider = get_namespace_provider()
assert provider is get_module_provider('your_package')

Predefined keys

There are some predefined string keys you can use direct, but you still can overwrite it:

  • ioc - get current scoped ServiceProvider instance.
  • provider - alias of ioc
  • service_provider - alias of ioc

And predefined types:

  • ServiceProvider
  • IServiceProvider

provider.get() vs provider[]

There are two ways to get services from ServiceProvider:

  • provider[] will raise ServiceNotFoundError if the service was not found;
  • provider.get() only return None if the service was not found.


By default, you can get a service after you register it;

If you want to dynamic get it without register, you can do that by use IServiceInfoResolver:

from anyioc import ServiceProvider
from anyioc.symbols import Symbols
from anyioc.ioc_resolver import ImportServiceInfoResolver

import sys
provider = ServiceProvider()
assert sys is provider['sys']

.cache() can cache the results.

There are other builtin resolvers:

  • ImportServiceInfoResolver - import module by name from a str key
  • TypesServiceInfoResolver - create instance by type from a type key
  • TypeNameServiceInfoResolver - create instance by type name from a str key
  • TypingServiceInfoResolver - get services tuple by keys from a typing.Tuple key.

Project details

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