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-rw-r--r--pym/_emerge/Scheduler.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/pym/_emerge/Scheduler.py b/pym/_emerge/Scheduler.py
index 33e3379fb..a6662a1d0 100644
--- a/pym/_emerge/Scheduler.py
+++ b/pym/_emerge/Scheduler.py
@@ -325,6 +325,11 @@ class Scheduler(PollScheduler):
if timeout is None:
while True:
+ if not self._poll_event_handlers:
+ self._schedule()
+ if not self._poll_event_handlers:
+ raise StopIteration(
+ "timeout is None and there are no poll() event handlers")
previous_count = len(self._poll_event_queue)
PollScheduler._poll(self, timeout=self._max_display_latency)
self._status_display.display()