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Python Programming Language
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get_traceback
Hi,
Is there a function or idoim for returning an exception/traceback
rather than just printing it to stdout? I'm running a deamon where
stdout is going to /dev/null, and I'm not even watching it..until
now. All the functions I found in traceback and sys seemed only to
print the error rather than just returning it, so I resorted to this:
def get_traceback():
import traceback, tempfile
stdout = sys.stdout
f = tempfile.TemporaryFile(mode='w+')
sys.stdout = f
traceback.print_tb(sys.exc_info()[2])
error = f.read()
f.close()
sys.stdout = stdout
return error
Whats the right function?!? Thanks.
~Sean
On Jun 4, 12:23 pm, half.ital@gmail.com wrote:
> Hi, > Is there a function or idoim for returning an exception/traceback
> rather than just printing it to stdout? I'm running a deamon where
> stdout is going to /dev/null, and I'm not even watching it..until
> now. All the functions I found in traceback and sys seemed only to
> print the error rather than just returning it, so I resorted to this:
> def get_traceback():
> import traceback, tempfile
> stdout = sys.stdout
> f = tempfile.TemporaryFile(mode='w+')
> sys.stdout = f
> traceback.print_tb(sys.exc_info()[2])
> error = f.read()
> f.close()
> sys.stdout = stdout
> return error
> Whats the right function?!? Thanks.
> ~Sean
traceback to me if there's an error. You could also have the script
redirect stdout to a file object.
Mike
En Mon, 04 Jun 2007 14:23:00 -0300, <half.ital@gmail.com> escribi:
> Is there a function or idoim for returning an exception/traceback
> rather than just printing it to stdout? I'm running a deamon where
> stdout is going to /dev/null, and I'm not even watching it..until
> now. All the functions I found in traceback and sys seemed only to
> print the error rather than just returning it, so I resorted to this:
Read again the docs for the traceback module.
Maybe you are looking for traceback.format_exception(*sys.exc_info()) or
traceback.format_exc()
> f = tempfile.TemporaryFile(mode='w+')
> sys.stdout = f
> traceback.print_tb(sys.exc_info()[2])
In this case you can use StringIO instead of a temporary file, and the
file argument to print_tb instead of swapping sys.stdout
--
Gabriel Genellina
On Jun 4, 3:51 pm, "Gabriel Genellina" <gagsl-@yahoo.com.ar> wrote:
> En Mon, 04 Jun 2007 14:23:00 -0300, <half.ital @gmail.com> escribi: > > Is there a function or idoim for returning an exception/traceback
> > rather than just printing it to stdout? I'm running a deamon where
> > stdout is going to /dev/null, and I'm not even watching it..until
> > now. All the functions I found in traceback and sys seemed only to
> > print the error rather than just returning it, so I resorted to this:
> Read again the docs for the traceback module.
> Maybe you are looking for traceback.format_exception(*sys.exc_info()) or
> traceback.format_exc()
> > f = tempfile.TemporaryFile(mode='w+')
> > sys.stdout = f
> > traceback.print_tb(sys.exc_info()[2])
> In this case you can use StringIO instead of a temporary file, and the
> file argument to print_tb instead of swapping sys.stdout
> --
> Gabriel Genellina
glad to make a connection to the StringIO class. I'm sure I will
remember it the next time I need it.
~Sean
En Mon, 04 Jun 2007 23:03:04 -0300, <half.ital@gmail.com> escribi:
> Thanks Gabriel. That was exactly what I was looking for. Also, I'm
> glad to make a connection to the StringIO class. I'm sure I will
> remember it the next time I need it.
Glad to see it helped. Certainly StringIO is a good thing to carry in your
toolbox...
--
Gabriel Genellina
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