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From: Dieter Maurer <dieter@handshake.de>
Subject: Re: Can I get logging.FileHandler to close the file on each emit?
Date: Thu, 30 Aug 2012 09:24:09 +0200
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Xref: csiph.com comp.lang.python:28093

rikardhulten@gmail.com writes:

> I use logging.FileHandler (on windows) and I would like to be able to delete the file while the process is running and have it create the file again on next log event.
>
> On windows (not tried linux) this is not possible because the file is locked by the process, can I get it to close the file after each log event?
>
> If not, would the correct thing to do be to write my own LogHandler with this behavior?

Zope is using Python's "logging" module and wants to play well
with log rotating (start a new logfile, do something with the old log file
(compress, rename, remove)).
It does this by registering a signal handler which closes its logfiles
when the corresponding signal is received.

Maybe, you can do something like this. Signal handling under
Windows is limited, but maybe you find a usable signal under Windows
(Zope is using "SIGUSR1").