docs/hazmat/backends/multibackend.rst

.. hazmat::

MultiBackend
============

.. currentmodule:: cryptography.hazmat.backends.multibackend

.. class:: MultiBackend(backends)

    .. versionadded:: 0.2

    This class allows you to combine multiple backends into a single backend
    that offers the combined features of all of its constituents.

    .. code-block:: pycon

        >>> from cryptography.hazmat.backends.multibackend import MultiBackend
        >>> from cryptography.hazmat.primitives import hashes
        >>> backend1.hash_supported(hashes.SHA256())
        False
        >>> backend2.hash_supported(hashes.SHA256())
        True
        >>> multi_backend = MultiBackend([backend1, backend2])
        >>> multi_backend.hash_supported(hashes.SHA256())
        True

    :param backends: A ``list`` of backend objects. Backends are checked for
                     feature support in the order they appear in this list.