openmedialibrary_platform_l.../lib/python3.4/site-packages/cryptography/hazmat/backends/__init__.py

38 lines
899 B
Python

# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import pkg_resources
from cryptography.hazmat.backends.multibackend import MultiBackend
_available_backends_list = None
def _available_backends():
global _available_backends_list
if _available_backends_list is None:
_available_backends_list = [
ep.resolve()
for ep in pkg_resources.iter_entry_points(
"cryptography.backends"
)
]
return _available_backends_list
_default_backend = None
def default_backend():
global _default_backend
if _default_backend is None:
_default_backend = MultiBackend(_available_backends())
return _default_backend