NO-JIRA: [Python] Fix exception in IOHandler.on_selectable_expired/up…

…date This occasionally happens after my laptop wakes up from overnight sleep. IOHandler.on_selectable_expired() is invoked with `selectable` that has `_terminated=True` and `_transport=None` so when `IOHandler.update()` is called it crashes when trying to handle the exception (since transport is None). Fix this by checking if transport attribute is set and that selectable is not terminated before invoking `IOHandler.update()`. Signed-off-by: Ievgen Popovych <[email protected]>
apache · Mar 1, 2023 · 8b75942 · 8b75942
1 parent 3b0cfbc
commit 8b75942
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/python/proton/_handlers.py b/python/proton/_handlers.py
@@ -1234,7 +1234,8 @@ def on_selectable_expired(self, event: Event) -> None:
         t = s._transport
         r = s._reactor
 
-        self.update(t, s, r.now)
+        if not s.is_terminal and t:
+            self.update(t, s, r.now)
 
     def on_connection_local_open(self, event: Event) -> None:
         c = event.connection