"""`Dict` provider with non-string keys example.""" import dataclasses from typing import Dict from dependency_injector import containers, providers class Command: ... class CommandA(Command): ... class CommandB(Command): ... class Handler: ... class HandlerA(Handler): ... class HandlerB(Handler): ... @dataclasses.dataclass class Dispatcher: command_handlers: Dict[Command, Handler] class Container(containers.DeclarativeContainer): dispatcher_factory = providers.Factory( Dispatcher, command_handlers=providers.Dict({ CommandA: providers.Factory(HandlerA), CommandB: providers.Factory(HandlerB), }), ) if __name__ == "__main__": container = Container() dispatcher = container.dispatcher_factory() assert isinstance(dispatcher.command_handlers, dict) assert isinstance(dispatcher.command_handlers[CommandA], HandlerA) assert isinstance(dispatcher.command_handlers[CommandB], HandlerB) # Call "dispatcher = container.dispatcher_factory()" is equivalent to: # dispatcher = Dispatcher( # command_handlers={ # CommandA: HandlerA(), # CommandB: HandlerB(), # }, # )