# HG changeset patch
# User Simon Heimberg <simohe@besonet.ch>
# Date 2011-09-11 12:42:30
# Node ID 31c9e2a702d128c5d0e2aa35eaa8cf5434029910
# Parent  db0646afb7258ed5beca38129ba12bb2dda838a7

ui: write traceback to self.ferr

diff --git a/mercurial/ui.py b/mercurial/ui.py
--- a/mercurial/ui.py
+++ b/mercurial/ui.py
@@ -653,9 +653,9 @@ class ui(object):
         printed.'''
         if self.tracebackflag:
             if exc:
-                traceback.print_exception(exc[0], exc[1], exc[2])
+                traceback.print_exception(exc[0], exc[1], exc[2], file=self.ferr)
             else:
-                traceback.print_exc()
+                traceback.print_exc(file=self.ferr)
         return self.tracebackflag
 
     def geteditor(self):