Bugs item #1678647, was opened at 2007-03-12 00:20
Message generated for change (Comment added) made by gbrandl
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Category: Unicode
Group: None
>Status: Closed
>Resolution: Wont Fix
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: Georg Brandl (gbrandl)
Date: 2007-03-12 15:18
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I fixed the "prints no newline" problem in rev. 54288.
There's nothing sensible we can do about the unicode conversion, so
closing as "won't fix".
You should always encode or repr() unicode exception arguments.
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Comment By: Georg Brandl (gbrandl)
Date: 2007-03-12 14:14
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Yes, or more precisely, the unicode string is converted to a byte string
using Python's default encoding, which is ASCII per default.
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Comment By: Leandro Lucarella (llucax)
Date: 2007-03-12 14:03
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But why the conversion is failing in the first place? Because just plain 7
bits ASCII is expected?
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Comment By: Hye-Shik Chang (perky)
Date: 2007-03-12 04:43
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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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