/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/__init__.py is in python-cryptography 0.6.1-1+deb8u1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | # Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
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 = [
backend.load(require=False)
for backend 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
|