[issue6962] traceback.format_exception_only does not return SyntaxError carot correctly
thewtex
report at bugs.python.org
Tue Sep 22 00:26:52 CEST 2009
New submission from thewtex <matt at mmmccormick.com>:
On Python 2.6.2, and possibly other versions, in the traceback module,
format_exception_only does not behave correctly when printout out a
SyntaxError. An extra newline is inserted before the carot. E.g.
38 exceptionType, exceptionValue, exceptionTraceback =
sys.exc_info()
39 sys.stderr.write("Exception:\n")
40 ex = traceback.format_exception_only(exceptionType,
exceptionValue)
41 sys.stderr.write(repr(ex))
42 for line in ex:
43 sys.stderr.write(line)
yields, e.g.
Exception:
[' File "/home/matt/apps/posac/source/posac/posac_main.py", line 12\n',
' def run()\n', ' \n^\n', 'SyntaxError: invalid syntax\n']
File "/home/matt/apps/posac/source/posac/posac_main.py", line 12
def run()
^
SyntaxError: invalid syntax
When it should be:
Exception:
[' File "/home/matt/apps/posac/source/posac/posac_main.py", line 12\n',
' def run()\n', ' ^\n', 'SyntaxError: invalid syntax\n']
File "/home/matt/apps/posac/source/posac/posac_main.py", line 12
def run()
^
SyntaxError: invalid syntax
Attached is a patch. This patch has been tested on gentoo linux.
----------
messages: 92966
nosy: thewtex
severity: normal
status: open
title: traceback.format_exception_only does not return SyntaxError carot correctly
type: behavior
versions: Python 2.6
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<http://bugs.python.org/issue6962>
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