Containers are collections of the providers.

There are several use cases how you can use containers:

  • Keeping all the providers in a single container (most common).

  • Grouping of the providers from the same architectural layer (for example, Services, Models and Forms containers).

  • Grouping of providers from the same functional groups (for example, container Users, that contains all functional parts of the users package).

Containers module API docs - dependency_injector.containers.