143 channel usable. But none of the part read from an abort are processed. In the

   143 channel usable. But none of the part read from an abort are processed. In the

   144 future, dropping the stream may become an option for channel we do not care to

   144 future, dropping the stream may become an option for channel we do not care to

   145 preserve.

   145 preserve.

   146 """

   146 """

   147 

   147 

   148 

   149 

   149 import collections

   150 import collections

   150 import errno

   151 import errno

   151 import os

   152 import os

   152 import re

   153 import re