Use pop_alerts() instead of looping with pop_alert

This saves CPU cycles on a busy session.

epour/session.py

@@ -1,7 +1,7 @@
 #
 #  Epour - A bittorrent client using EFL and libtorrent
 #
-#  Copyright 2012-2014 Kai Huuhko <kai.huuhko@gmail.com>
+#  Copyright 2012-2015 Kai Huuhko <kai.huuhko@gmail.com>
 #
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -393,7 +393,7 @@ class AlertManager(object):
         self.timer = Timer(self.update_interval, self.update)
 
     def callback_add(self, alert_type, cb, *args, **kwargs):
-        if not alert_type in self.alerts:
+        if alert_type not in self.alerts:
             self.alerts[alert_type] = []
         self.alerts[alert_type].append((cb, args, kwargs))
 
@@ -405,7 +405,7 @@ class AlertManager(object):
     def signal(self, a):
         a_name = type(a).__name__
 
-        if not a_name in self.alerts:
+        if a_name not in self.alerts:
             self.log.debug("No handler: {} | {}".format(a_name, a))
             return
 
@@ -416,13 +416,8 @@ class AlertManager(object):
                 self.log.exception("Exception while handling alerts")
 
     def update(self):
-        # TODO: Use pop_alerts()
         #self.log.debug("Alerts TICK")
-        while 1:
-            a = self.session.pop_alert()
-            if not a:
-                break
-
+        for a in self.session.pop_alerts():
             self.signal(a)
 
         return True