using gc in qtile

gistfile1.diff

diff --git a/libqtile/manager.py b/libqtile/manager.py
index 17175de..5283b01 100644
--- a/libqtile/manager.py
+++ b/libqtile/manager.py
@@ -596,6 +596,21 @@ class Log:
     def clear(self):
         self.log = []
 
+def get_leaking_objects():
+    """
+    from http://blog.ccpgames.com/kristjan/2010/12/08/finding-c-reference-leaks-using-the-gc-module/
+    """
+    import gc
+    #create a dict of ids to objects
+    all = dict((id(i), i) for i in gc.get_objects())
+
+    #find all the objects that aren't referred to by any other object
+    ids = set(all.keys())
+    for i in all.values():
+        ids.difference_update(id(j) for j in gc.get_referents(i))
+
+    #this then is our set of objects without referrers
+    return [all[i] for i in ids]
 
 class Qtile(command.CommandObject):
     """
@@ -606,6 +621,7 @@ class Qtile(command.CommandObject):
     _testing = False
     _logLength = 100
     def __init__(self, config, displayName=None, fname=None, testing=False):
+        self.prev = None
         self._testing = testing
         if not displayName:
             displayName = os.environ.get("DISPLAY")
@@ -979,11 +995,20 @@ class Qtile(command.CommandObject):
                 self.xpoll()
                 self.conn.flush()
                 hook.fire("tick")
+                self.get_leaks()
         except:
             # We've already written a report.
             if not self._exit:
                 self.writeReport(traceback.format_exc())
 
+    def get_leaks(self):
+        if self.prev is None:
+            self.prev = get_leaking_objects()
+        else:
+            cur = get_leaking_objects()
+            print "LEN LEAK", len(cur)
+            print "DIFF", [x for x in cur if x not in self.prev]
+            self.prev = cur
     def find_screen(self, x, y):
         """
             Find a screen based on the x and y offset.