text: #!/usr/bin/env python
  
  from functools import wraps
  import time
  from datetime import datetime
  import logging
  from sys import stdout
  from collections import defaultdict
  from decimal import Decimal, ROUND_UP
  
  class AutoLogger:
      '''
      Automatically generates logs
      '''
  
      FORMAT = 'AUTOLOG:function({d[fn]}):args({d[arg]}):kwargs({d[kwarg]}):ex_time_ms({d[xtime]}):return({d[return]}):exception({d[exception]})'
  
      def __init__(self, app_name='app.logbot', config={}):
          '''
          @param app_name str
          instantiate a new instance of the logger
          '''
          logging.basicConfig(**config)
          self._log = logging.getLogger(app_name)
          return
  
      def _format(self, **kwargs):
          d = defaultdict(str, **kwargs)
          return str(self.FORMAT).format(d=defaultdict(str, **kwargs))
  
      def _xtime(self, start):
          start = Decimal(str(start)).quantize(Decimal('.000001'), rounding=ROUND_UP)
          end = Decimal(str(time.time())).quantize(Decimal('.000001'), rounding=ROUND_UP)
          return end - start
  
      def setformat(self, format_str):
          self.FORMAT = format_str
          return
  
      def autolog(self, fn):
          '''
          function decorator that catches exceptions
          and loggs function calls automatically
          '''
          @wraps(fn)
          def wrapper(*args, **kwargs):
              start = time.time()
              rtn = None
              try:
                  rtn = fn(*args, **kwargs)
              except Exception as e:
                  self._log.error(self._format(fn=fn.__name__, xtime=self._xtime(start), rtn=str(rtn), exception=str(e), arg=args, kwarg=kwargs))
                  return e
              self._log.debug(self._format(fn=fn.__name__, xtime=self._xtime(start), rtn=str(rtn), arg=args, kwarg=kwargs))
              return rtn
          return wrapper
  
      ### public methods for user-supplied logging messages
      ### without calling logging.getLogger()
      def debug(self, msg):
          self._log.debug(msg)
          return
  
  
      def info(self, msg):
          self._log.info(msg)
          return
  
  
      def warn(self, msg):
          self._log.warn(msg)
          return
  
  
      def error(self, msg):
          self._log.error(msg)
          return
  