3 # Copyright 2005-2016 Olivia Mackall <olivia@selenic.com>

     3 # Copyright 2005-2016 Olivia Mackall <olivia@selenic.com>

     4 #

     4 #

     5 # This software may be used and distributed according to the terms of the

     5 # This software may be used and distributed according to the terms of the

     6 # GNU General Public License version 2 or any later version.

     6 # GNU General Public License version 2 or any later version.

     7 

     7 

     8 

     9 

     9 import binascii

    10 import binascii

    10 import codecs

    11 import codecs

    11 import collections

    12 import collections

    12 import contextlib

    13 import contextlib