flush stdout/err before printing tracebacks

IPython/ultraTB.py

@@ -60,7 +60,7 b' You can implement other color schemes easily, the syntax is fairly'
 self-explanatory. Please send back new schemes you develop to the author for
 possible inclusion in future releases.
 
-$Id: ultraTB.py 1956 2006-11-30 05:22:31Z fperez $"""
+$Id: ultraTB.py 2027 2007-01-19 00:55:09Z fperez $"""
 
 #*****************************************************************************
 #       Copyright (C) 2001 Nathaniel Gray <[e-mail]>
@@ -248,6 +248,8 b' class ListTB(TBTools):'
         TBTools.__init__(self,color_scheme = color_scheme,call_pdb=0)
         
     def __call__(self, etype, value, elist):
+        Term.cout.flush()
+        Term.cerr.flush()
         print >> Term.cerr, self.text(etype,value,elist)
 
     def text(self,etype, value, elist,context=5):
@@ -716,6 +718,8 b' class VerboseTB(TBTools):'
     def handler(self, info=None):
         (etype, evalue, etb) = info or sys.exc_info()
         self.tb = etb
+        Term.cout.flush()
+        Term.cerr.flush()
         print >> Term.cerr, self.text(etype, evalue, etb)
 
     # Changed so an instance can just be called as VerboseTB_inst() and print
@@ -833,6 +837,8 b' class AutoFormattedTB(FormattedTB):'
         
         if out is None:
             out = Term.cerr
+        Term.cout.flush()
+        out.flush()
         if tb_offset is not None:
             tb_offset, self.tb_offset = self.tb_offset, tb_offset
             print >> out, self.text(etype, evalue, etb)

doc/ChangeLog

@@ -1,3 +1,9 b''
[phone]  Fernando Perez  <[e-mail]>
+
+	* IPython/ultraTB.py (AutoFormattedTB.__call__): properly flush
+	all output streams before printing tracebacks.  This ensures that
+	user output doesn't end up interleaved with traceback output.
+
 2007-01-10  Ville Vainio  <[e-mail]>
 
 	* Extensions/envpersist.py: Turbocharged %env that remembers