[ python-Bugs-1678647 ] Weird behavior Exception with unicode string

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Bugs item #1678647, was opened at 2007-03-12 09:20
Message generated for change (Comment added) made by perky
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Category: Unicode
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Leandro Lucarella (llucax)
Assigned to: M.-A. Lemburg (lemburg)
Summary: Weird behavior Exception with unicode string

Initial Comment:
This simple python program:
-------------------------------
raise Exception(u'Muri\u00f3')
-------------------------------

prints:
-----------------------------------
Traceback (most recent call last):
  File "pylog.py", line 1, in ?
    raise Exception(u'Muri\u00f3')
Exception
-----------------------------------

While not using an unicode character, seems to work fine (even if using an unicode parameter):
--------------------------
raise Exception(u'Murio')
--------------------------

prints:
-----------------------------------
Traceback (most recent call last):
  File "pylog.py", line 1, in ?
    raise Exception(u'Murio')
Exception: Murio
-----------------------------------

This seems to break the logging module when calling logging.exception(u'Muri\u00f3'), for example.

Tested in Python 2.4.4 and 2.5 (debian).

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>Comment By: Hye-Shik Chang (perky)
Date: 2007-03-12 13:43

Message:
Logged In: YES 
user_id=55188
Originator: NO

That's from line 1216-1230 of Python/pythonrun.c as in trunk.
It tries PyObject_Str(exception) and skips printing line terminator when
it failed.
And the behavior came from r8084
(http://svn.python.org/view/python/trunk/Python/pythonrun.c?rev=8084&r1=8070&r2=8084).

Hmm. I think it should put a LF even if the conversion failed. (encoding
the unicode with "ignore" or "replace" would make some confusion and
putting it in PyObject_Repr() makes inconsistency.)

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