Python, want logging with log rotation and compression

Question

Can anyone suggest a way in python to do logging with:

• log rotation every day
• compression of logs when they\'re rotated
• optional - delete old

Answer 1

To copy the file, gzip the copied file (using epoch time), and then clearing out the existing file in a way that won't upset the logging module:

import gzip
import logging
import os
from shutil import copy2
from time import time

def logRoll(logfile_name):
    log_backup_name = logfile_name + '.' + str(int(time()))
    try:
        copy2(logfile_name, log_backup_name)   
    except IOError, err:
        logging.debug(' No logfile to roll')
        return
    f_in = open(log_backup_name, 'rb')
    f_out = gzip.open(log_backup_name + '.gz', 'wb')
    f_out.writelines(f_in)
    f_out.close()
    f_in.close()
    os.remove(log_backup_name)
    f=open(logfile_name, 'w')
    f.close()