Index: Lib/code.py
===================================================================
--- Lib/code.py	(revision 77361)
+++ Lib/code.py	(working copy)
@@ -246,7 +246,7 @@
                 self.resetbuffer()
                 more = 0
 
-    def push(self, line):
+    def push(self, line, symbol='single'):
         """Push a line to the interpreter.
 
         The line should not have a trailing newline; it may have
@@ -262,7 +262,7 @@
         """
         self.buffer.append(line)
         source = "\n".join(self.buffer)
-        more = self.runsource(source, self.filename)
+        more = self.runsource(source, self.filename, symbol)
         if not more:
             self.resetbuffer()
         return more