title: How do I get logger to delete existing log file before writing to it again?
body: <p>Using the configuration below, my logfile will be called 'test-debug.log' and it will grow infinitely for everytime I run the script. I just want this logfile to contain the log records from the most recent run of the script. The log should be deleted before starting again.</p>
  
  <p>How do I do that?</p>
  
  <pre><code>logger = logging.getLogger('test') #Create a log with the same name as the script that created it
  logger.setLevel('DEBUG')
  
  
  #Create handlers and set their logging level
  filehandler_dbg = logging.FileHandler(logger.name + '-debug.log')
  filehandler_dbg.setLevel('DEBUG') 
  
  
  #Create custom formats of the logrecord fit for both the logfile and the console
  streamformatter = logging.Formatter(fmt='%(levelname)s:\t%(threadName)s:\t%(funcName)s:\t\t%(message)s', datefmt='%H:%M:%S') #We only want to see certain parts of the message
  
  
  #Apply formatters to handlers
  filehandler_dbg.setFormatter(streamformatter)
  
  
  #Add handlers to logger
  logger.addHandler(filehandler_dbg)
  </code></pre>