fixed some more channel attribute errors; eliminated most uses of catchup in favor of waiting on semantically meaningful predicates; fixed Serial.__cmp__ to check the type of the other object

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@806734 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 5 insertions, 2 deletions

diff --git a/python/qpid/session.py b/python/qpid/session.py
index 071d4dc817..2f1bd81bd4 100644
--- a/python/qpid/session.py
+++ b/python/qpid/session.py
@@ -244,13 +244,16 @@ class Sender:
     self._completed = RangedSet()
 
   def send(self, cmd):
+    ch = self.session.channel
+    if ch is None:
+      raise SessionDetached()
     cmd.id = self.next_id
     self.next_id += 1
     if self.session.send_id:
       self.session.send_id = False
-      self.session.channel.session_command_point(cmd.id, 0)
+      ch.session_command_point(cmd.id, 0)
     self.commands.append(cmd)
-    self.session.channel.connection.write_op(cmd)
+    ch.connection.write_op(cmd)
 
   def completed(self, commands):
     idx = 0