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author | Mohammed Attia <skeuomorf@gmail.com> | 2014-03-05 21:54:06 +0200 |
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committer | Mohammed Attia <skeuomorf@gmail.com> | 2014-03-05 21:54:06 +0200 |
commit | cd2a1a883ece50bdeff5f5a8e66ba807c16615a0 (patch) | |
tree | 2c50180b381d3d31769991c2b4047e1ce5d7b065 | |
parent | e889cc2161d044303ae7ba682fa9c341aa1c99f5 (diff) | |
download | cryptography-cd2a1a883ece50bdeff5f5a8e66ba807c16615a0.tar.gz cryptography-cd2a1a883ece50bdeff5f5a8e66ba807c16615a0.tar.bz2 cryptography-cd2a1a883ece50bdeff5f5a8e66ba807c16615a0.zip |
Add bit_length function to utils
-rw-r--r-- | cryptography/utils.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/cryptography/utils.py b/cryptography/utils.py index e697d515..eac833b6 100644 --- a/cryptography/utils.py +++ b/cryptography/utils.py @@ -13,9 +13,18 @@ from __future__ import absolute_import, division, print_function +import sys + 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)) |