[Python-checkins] cpython: asyncio, Tulip issue 158: Task._step() now also sets self to None if an

[victor.stinner]

http://hg.python.org/cpython/rev/f4a2d0e4e0be
changeset:   89474:f4a2d0e4e0be
user:        Victor Stinner <victor.stinner at gmail.com>
date:        Tue Mar 04 23:07:08 2014 +0100
summary:
  asyncio, Tulip issue 158: Task._step() now also sets self to None if an
exception is raised.  self is set to None to break a reference cycle.

files:
  Lib/asyncio/tasks.py |  2 +-
  1 files changed, 1 insertions(+), 1 deletions(-)


diff --git a/Lib/asyncio/tasks.py b/Lib/asyncio/tasks.py
--- a/Lib/asyncio/tasks.py
+++ b/Lib/asyncio/tasks.py
@@ -325,7 +325,7 @@
                         'Task got bad yield: {!r}'.format(result)))
         finally:
             self.__class__._current_tasks.pop(self._loop)
-        self = None
+            self = None  # Needed to break cycles when an exception occurs.
 
     def _wakeup(self, future):
         try:

-- 
Repository URL: http://hg.python.org/cpython