Closes #16244: Merged change from 3.3.

vsajip · vsajip · commit 3ba726ce04af · 2012-10-16T10:33:30.000+01:00
diff --git a/Lib/logging/handlers.py b/Lib/logging/handlers.py
@@ -170,7 +170,6 @@ def doRollover(self):
             if os.path.exists(dfn):
                 os.remove(dfn)
             self.rotate(self.baseFilename, dfn)
-        self.mode = 'w'
         self.stream = self._open()
 
     def shouldRollover(self, record):
@@ -379,7 +378,6 @@ def doRollover(self):
         if self.backupCount > 0:
             for s in self.getFilesToDelete():
                 os.remove(s)
-        self.mode = 'w'
         self.stream = self._open()
         newRolloverAt = self.computeRollover(currentTime)
         while newRolloverAt <= currentTime:
