traceback support added

IPython/frontend/terminal/frontend.py

@@ -30,7 +30,6 b' import readline'
 import rlcompleter
 import time
 
-
 #-----------------------------------------------------------------------------
 # Imports from ipython
 #-----------------------------------------------------------------------------
@@ -151,8 +150,10 b' class Frontend(object):'
 		       self.prompt_count = self.msg_xreq["content"]["execution_count"]+1
 		   
                  else:
-                     print >> sys.stderr, "Error executing: ",self.msg_xreq ##traceback no implemented yet here
-                     print >> sys.stderr, "Status in the kernel: ", self.msg_xreq["content"]["status"]
+		     etb = self.msg_xreq["content"]["traceback"]
+		     print >> sys.stderr, etb[0]
+		     print >> sys.stderr, etb[1]
+		     print >> sys.stderr, etb[2]
                      break
 	   time.sleep(0.1)