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# 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 sys
DeprecatedIn04 = DeprecationWarning
DeprecatedIn05 = PendingDeprecationWarning
def register_interface(iface):
def register_decorator(klass):
iface.register(klass)
return klass
return register_decorator
def bit_length(x):
if sys.version_info >= (2, 7):
return x.bit_length()
else:
return len(bin(x)) - (2 + (x <= 0))
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