On Dec 3, 2008, at 3:06 PM, Astley Le Jasper wrote:
On 3 Dec, 19:49, Philip Semanchuk <[EMAIL PROTECTED]> wrote:
On Dec 3, 2008, at 1:33 PM, Astley Le Jasper wrote:
On 3 Dec, 16:41, Philip Semanchuk <[EMAIL PROTECTED]> wrote:
On Dec 3, 2008, at 10:29 AM, Astley Le Jasper wrote:
I've included a switch to include or exclude theloggingto console.
Whenloggingonly to file, the script runs fine.
Of course, I still don't understand whyduallogging, and
specifically
to the console, causes a problem and if anyone has any comments
about
thedualoutputloggingcode above then I'd still be happy to hear
about it.
Trying to write non-ASCII characters perchance?
Errmmm ... that's kind of spoookey. I using UTF-8 encoding as I
have a
lot of European language characters. But would that cause a problem
when running from crontab but not in the terminal?
Go on then ... spill the beans.
Oh, I don't know exactly. It's just what I thought of when you said
that the problem occurs when logging to the console but not to files.
I don't have a deep Unix background so I can't give you the details
on
what "the console" means to a cron job.
In my experience, the environment in which a cron job runs is
different from the environment in which some command line scripts run
(remember my earlier suggestion about needing to explicitly set the
PATH?) and so if the console for a cron job differed from the console
that a Python program sees when run in a terminal, that would not
surprise me.
Hope it's a useful suggestion
Philip
I tried using the path variables but it didn't help. There again, I
didn't really understand what was being passed in the path variables
and, rather than just copying and pasting, I wanted to look up further
info to get to grips with it. I've got something that works, so now
the pressure is off I can spend some time looking it up.
[sigh ... my experiences with linux haven't been that good so far. It
is, if nothing else, interesting]
Sorry, I was misleading. I don't think the PATH has anything to do
with why your script can't log to the console when run as a cron job.
I was just pointing out that my Python scripts have had environment-
related problems when run as cron jobs, so it would not surprise me if
that's your problem too. The PATH was just an example of an
environment element that wasn't what I expected.
Just a thought -- if my weak hunch that non-ASCII output is your
problem, you might be able to test this easily (depending on how you
use the logger) by forcing all output messages to "foo". If your cron
job doesn't crash then, you know that the *content* of the output is
probably the culprit which would indeed point to an encoding problem.
HTH
Philip
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