Merged revisions 7788 via svnmerge from

efiring · efiring · commit e4ab17dc6de3 · 2009-09-19T03:05:24.000Z
https://matplotlib.svn.sourceforge.net/svnroot/matplotlib/branches/v0_99_maint ........ r7788 | efiring | 2009-09-18 16:53:06 -1000 (Fri, 18 Sep 2009) | 2 lines Fix bug in maxdict when replacing an existing item ........ svn path=/trunk/matplotlib/; revision=7789
diff --git a/lib/matplotlib/cbook.py b/lib/matplotlib/cbook.py
@@ -999,11 +999,12 @@ def __init__(self, maxsize):
         self.maxsize = maxsize
         self._killkeys = []
     def __setitem__(self, k, v):
-        if len(self)>=self.maxsize:
-            del self[self._killkeys[0]]
-            del self._killkeys[0]
+        if k not in self:
+            if len(self)>=self.maxsize:
+                del self[self._killkeys[0]]
+                del self._killkeys[0]
+            self._killkeys.append(k)
         dict.__setitem__(self, k, v)
-        self._killkeys.append(k)
 
 
 
