Python Decorator Log file not generating

I am new to Python and learning logging technique with Decorator. For me the below code is not generating required log file. Debugged the code, getting correct message to logger statement but the file is not generating. From Test method i am call the required function where i have implemented Decorator. Please guide where i am doing mistake.

try:      import csv      import requests      import datetime      import os      import sys      import logging  except Exception as e:     print("Some Modules are missing {}".format(e))      class Meta(type):      """ Meta class"""        def __call__(cls, *args, **kwargs):          instance = super(Meta, cls).__call__(*args, **kwargs)          return instance        def __init__(cls, name, base, attr):          super(Meta, cls).__init__(name, base, attr)      class log(object):      def __init__(self, func):          self.func = func        def __call__(self, *args, **kwargs):          """ Wrapper Function"""            start = datetime.datetime.now()     #start time          Tem = self.func(*args)     #call Function          Argument = args          FunName = self.func.__name__        #get Function name          end = datetime.datetime.now()