RotatingFileHandler and logging config file

[Rob Cranfill]

Hello,

I've successfully coded Python to do what I want with a 
RotatingFileHandler, but am having trouble getting the same behavior via 
a config file.

I wanted to create one log file each time I run my app, with up to 10 
files kept from the last invocations. This was accomplished with

   self._logger = logging.getLogger('PDGUI')
   # We will rotate the files 'manually', so use zero rotate size.
   handler = logging.handlers.RotatingFileHandler( \
        "..\\PDGUI.log", "a", 0, 10)
   handler.doRollover() # force the next file to be used

   formatter = logging.Formatter("%(asctime)s " + \
        "%(levelname)s\t%(message)s")
   handler.setFormatter(formatter)
   self._logger.addHandler(handler)
   self._logger.setLevel(logging.INFO)

I'd like to do the same thing with a config file (so that, if this 
*isn't* the behavior I want, I can change the config file, of course).
I started with a rather plain config file, with the only interesting bit 
being:

[handler_hand01]
class=handlers.RotatingFileHandler
level=NOTSET
formatter=form01
args=("..\\PDGUI.log", "a", 0, 10,)


But I still have one problem - how do I force the "handler.doRollover()" 
to happen with the config file? There doesn't seem to be any way to do 
this in the config file itself, which is OK and perhaps appropriate 
[BTW, has anyone else noticed that RotatingFileHandler isn't documented 
in the docs? All the other file handlers have at least a paragraph on 
their options, but nothing for RFH!]

I can't find any way to do the handler.doRollover() in code, either, if 
I've started off with a config file. Something like


   logging.config.fileConfig(options.logconfig)

   # BUGBUG If the config file specifies a RotatingFileHandler,
   # we need to force a doRollover now, but there's no way!
   #
   handler = logging.getLogger().getHandler() # THIS DOESN'T EXIST!
   handler.doRollover() # force the next file to be used


Ideas, suggestions, etc? It's too bad - with the code method, I can do 
exactly what I want, but not with the config file.

   - rob