Does python logging.handlers.RotatingFileHandler allow creation of a group writable log file?

Question

I\'m using the standard python (2.5.2) logging module, specifically the RotatingFileHandler, on a linux system. My application supports both a command-line interfa

Answer 1

Here's a complete solution for Django based on rob's solution. in my_module :

import logging
import logging.handlers
import os

The class= that happens during the logging configuration is evaluated in the namespace of the logging module, and by default this does not have a binding to handlers. So we have to put it in explicitly before we can extend it. See this SO article

logging.handlers = logging.handlers

It's this magical incantation that took me forever to find - I couldn't believe it did anything! Finally, Jon's class will load without errors.

class GroupWriteRotatingFileHandler(logging.handlers.RotatingFileHandler):    
    def _open(self):
        prevumask = os.umask(0o002)
        rtv = logging.handlers.RotatingFileHandler._open(self)
        os.umask(prevumask)
        return rtv

To use this for Django add the following this in the settings file

from my_module import GroupWriteRotatingFileHandler
logging.handlers.GroupWriteRotatingFileHandler = GroupWriteRotatingFileHandler

And then in LOGGING['handlers']['file'] you have

'class': 'logging.handlers.GroupWriteRotatingFileHandler'