More re-organization of InteractiveShell.

IPython/core/embed.py

@@ -227,6 +227,14 b' class InteractiveShellEmbed(InteractiveShell):'
             for var in local_varnames:
                 delvar(var,None)
 
+    def set_completer_frame(self, frame=None):
+        if frame:
+            self.Completer.namespace = frame.f_locals
+            self.Completer.global_namespace = frame.f_globals
+        else:
+            self.Completer.namespace = self.user_ns
+            self.Completer.global_namespace = self.user_global_ns
+
 
 _embedded_shell = None