From 57fdcbc60ff8bbb0261f5dba47580194d45c31a3 Mon Sep 17 00:00:00 2001
From: Anthony Baxter <anthonybaxter@gmail.com>
Date: Thu, 13 Apr 2006 01:34:33 +0000
Subject: reverting r45321: Patch #860326: traceback.format_exception_only()
 now prepends the exception's module name to non-builtin exceptions, like the
 interpreter itself does.

broke a number of doctests. should be discussed before checking in (see
discussion on python-dev).
---
 Lib/test/test_traceback.py | 21 ---------------------
 Lib/traceback.py           |  6 +-----
 Misc/NEWS                  |  4 ----
 3 files changed, 1 insertion(+), 30 deletions(-)

diff --git a/Lib/test/test_traceback.py b/Lib/test/test_traceback.py
index 26ab7dc..22c0456 100644
--- a/Lib/test/test_traceback.py
+++ b/Lib/test/test_traceback.py
@@ -5,9 +5,6 @@ from test.test_support import run_unittest, is_jython
 
 import traceback
 
-class TbError(Exception):
-    pass
-
 class TracebackCases(unittest.TestCase):
     # For now, a very minimal set of tests.  I want to be sure that
     # formatting of SyntaxErrors works based on changes for 2.1.
@@ -106,24 +103,6 @@ def test():
             import sys
             sys.exc_traceback.__members__
 
-    def raise_tberror(self):
-        raise TbError
-
-    def raise_typeerror(self):
-        raise TypeError
-
-    def test_modulename(self):
-        # Bug 860326: format_exception_only should prepend module name
-        # to exceptions not in "exceptions", like PyErr_Print does.
-        err = self.get_exception_format(self.raise_tberror, TbError)
-        self.assertEquals(len(err), 1)
-        self.assert_(err[0] == '__main__.TbError\n' or
-                     err[0] == 'test.test_traceback.TbError\n')
-
-        err = self.get_exception_format(self.raise_typeerror, TypeError)
-        self.assertEquals(err[0], 'TypeError\n')
-
-
 def test_main():
     run_unittest(TracebackCases)
 
diff --git a/Lib/traceback.py b/Lib/traceback.py
index 56a87dc..454eb1b 100644
--- a/Lib/traceback.py
+++ b/Lib/traceback.py
@@ -158,12 +158,8 @@ def format_exception_only(etype, value):
     """
     list = []
     if (type(etype) == types.ClassType
-        or (isinstance(etype, type) and issubclass(etype, BaseException))):
+        or (isinstance(etype, type) and issubclass(etype, Exception))):
         stype = etype.__name__
-        if not hasattr(etype, '__module__'):
-            stype = '<unknown>.' + stype
-        elif etype.__module__ != 'exceptions':
-            stype = etype.__module__ + '.' + stype
     else:
         stype = etype
     if value is None:
diff --git a/Misc/NEWS b/Misc/NEWS
index 5ee249f..1e242d0 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -49,10 +49,6 @@ Extension Modules
 Library
 -------
 
-- Patch #860326: traceback.format_exception_only() now prepends the
-  exception's module name to non-builtin exceptions, like the interpreter
-  itself does.
-
 - SimpleXMLRPCServer relied on the fcntl module, which is unavailable on
   Windows. Bug #1469163.
 
-- 
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