Index: Lib/urllib/response.py
===================================================================
--- Lib/urllib/response.py	(revision 68176)
+++ Lib/urllib/response.py	(working copy)
@@ -31,6 +31,15 @@
         return '<%s at %r whose fp = %r>' % (self.__class__.__name__,
                                              id(self), self.fp)
 
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        line = self.readline()
+        if not line:
+            raise StopIteration
+        return line
+
     def close(self):
         self.read = None
         self.readline = None