diff --git a/hgext/convert/hg.py b/hgext/convert/hg.py
--- a/hgext/convert/hg.py
+++ b/hgext/convert/hg.py
@@ -33,7 +33,7 @@ class mercurial_sink(converter_sink):
                 if not self.repo.local():
                     raise NoRepo(_('%s is not a local Mercurial repo') % path)
             except error.RepoError, err:
-                ui.print_exc()
+                ui.traceback()
                 raise NoRepo(err.args[0])
         else:
             try:
@@ -43,7 +43,7 @@ class mercurial_sink(converter_sink):
                     raise NoRepo(_('%s is not a local Mercurial repo') % path)
                 self.created.append(path)
             except error.RepoError:
-                ui.print_exc()
+                ui.traceback()
                 raise NoRepo("could not create hg repo %s as sink" % path)
         self.lock = None
         self.wlock = None
@@ -199,7 +199,7 @@ class mercurial_source(converter_source)
             if not self.repo.local():
                 raise error.RepoError()
         except error.RepoError:
-            ui.print_exc()
+            ui.traceback()
             raise NoRepo("%s is not a local Mercurial repo" % path)
         self.lastrev = None
         self.lastctx = None
diff --git a/hgext/convert/subversion.py b/hgext/convert/subversion.py
--- a/hgext/convert/subversion.py
+++ b/hgext/convert/subversion.py
@@ -233,7 +233,7 @@ class svn_source(converter_source):
             self.paths = {}
             self.uuid = svn.ra.get_uuid(self.ra).decode(self.encoding)
         except SubversionException:
-            ui.print_exc()
+            ui.traceback()
             raise NoRepo("%s does not look like a Subversion repo" % self.url)
 
         if rev:
diff --git a/hgext/inotify/__init__.py b/hgext/inotify/__init__.py
--- a/hgext/inotify/__init__.py
+++ b/hgext/inotify/__init__.py
@@ -105,7 +105,7 @@ def reposetup(ui, repo):
                 else:
                     ui.warn(_('failed to contact inotify server: %s\n')
                              % err[-1])
-                ui.print_exc()
+                ui.traceback()
                 # replace by old status function
                 self.status = super(inotifydirstate, self).status
 
diff --git a/mercurial/dispatch.py b/mercurial/dispatch.py
--- a/mercurial/dispatch.py
+++ b/mercurial/dispatch.py
@@ -47,7 +47,7 @@ def _runcatch(ui, args):
             # enter the debugger when we hit an exception
             if '--debugger' in args:
                 pdb.post_mortem(sys.exc_info()[2])
-            ui.print_exc()
+            ui.traceback()
             raise
 
     # Global exception handling, alphabetically
diff --git a/mercurial/extensions.py b/mercurial/extensions.py
--- a/mercurial/extensions.py
+++ b/mercurial/extensions.py
@@ -87,7 +87,7 @@ def loadall(ui):
             else:
                 ui.warn(_("*** failed to import extension %s: %s\n")
                         % (name, inst))
-            if ui.print_exc():
+            if ui.traceback():
                 return 1
 
 def wrapcommand(table, command, wrapper):
diff --git a/mercurial/hook.py b/mercurial/hook.py
--- a/mercurial/hook.py
+++ b/mercurial/hook.py
@@ -61,7 +61,7 @@ def _pythonhook(ui, repo, name, hname, f
                            '%s\n') % (hname, exc))
         if throw:
             raise
-        ui.print_exc()
+        ui.traceback()
         return True
     if r:
         if throw:
diff --git a/mercurial/httprepo.py b/mercurial/httprepo.py
--- a/mercurial/httprepo.py
+++ b/mercurial/httprepo.py
@@ -82,7 +82,7 @@ class httprepository(repo.repository):
             raise
         except httplib.HTTPException, inst:
             self.ui.debug(_('http error while sending %s command\n') % cmd)
-            self.ui.print_exc()
+            self.ui.traceback()
             raise IOError(None, inst)
         except IndexError:
             # this only happens with Python 2.3, later versions raise URLError
diff --git a/mercurial/ui.py b/mercurial/ui.py
--- a/mercurial/ui.py
+++ b/mercurial/ui.py
@@ -334,7 +334,7 @@ class ui(object):
 
         return t
 
-    def print_exc(self):
+    def traceback(self):
         '''print exception traceback if traceback printing enabled.
         only to call in exception handler. returns true if traceback
         printed.'''