Rather than a flat ASCII file, you could just use the database of your choice (mySql, etc.) and include a sequence #, date, priority, source and comment fields. You could overwrite based on any field you wanted. You'd need to write a small tool to make a log report from the database.
Also check out: http://www.red-dove.com/python_logging.html I'm not sure if it has a max size of logfile option - would have to be a FileHandler specific option - maybe you guys should work together in it. (I also notice there's no DBHandler - maybe my idea was not a good one?) mike You could even try a Shelve: import shelve class Log: #untested MAX = 2**20 def __init__(self): self.size = size.seq = 0 self.shelf = shelve.open("log.bin") def write(self, msg): self.size += len(msg) if self.size > Log.MAX: self.seq=self.size=0 self.shelf[seq] = (msg,) # add other stuff to tuple... self.seq++ def __del__(self): self.shelf.close() Then write a little program (about the same size) to make the log report. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Trent Mick Sent: Friday, April 12, 2002 9:50 AM To: Matt Whiteley Cc: [EMAIL PROTECTED] Subject: Re: Log File Size Limiter [Matt Whiteley wrote] > All, > > I need to limit the size of a log file I'm creating. At the moment, I'm just > appending to it and it's going >100MB which is a bit excessive. > > I'd like the file to 'roll' so the first entries get pushed out as the later > entries come in. > > Are there any pre-written examples of this, or is there a simple way to do > it please ? There are a few ways you could do this. You could os.stat the log file's size every once in a while (one every write? though that might be slow) and if the file passes a threshold size you could: - close the file handle - os.rename(<logfile>, <logfile>+<timestamp>) - open(<logfile>) Or you could roll over the file once per day (or per hour, etc). I don't know of any pre-written examples of doing this although you might want to ask on [EMAIL PROTECTED] Cheers, Trent p.s. There is a current proposal to add a standard logging module to Python 2.3 which will very likely provide a standard way of doing this for you. http://www.python.org/peps/pep-0282.html -- Trent Mick [EMAIL PROTECTED] _______________________________________________ ActivePython mailing list [EMAIL PROTECTED] To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs _______________________________________________ ActivePython mailing list [EMAIL PROTECTED] To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
