Providers
=========

Providers are strategies of accessing objects. They describe how particular 
objects are provided.

Base providers class is - :py:class:`dependency_injector.providers.Provider`

Every provider is callable (implements ``__call__()``). Every call to provider 
instance returns provided result, according to the providing strategy of 
particular provider. 

Current documentation section consists from description of standard providers
library and some useful information like overriding of providers and writing 
of custom providers.

All providers are validated in multithreading environment and considered to 
be thread safe.

Providers module API docs - :py:mod:`dependency_injector.providers`

..  toctree::
    :maxdepth: 2

    factory
    singleton
    callable
    external_dependency
    static
    overriding
    custom