code: def get_value_from_cfg(cfg_file):
          ''' initial the configuration with file that you specify 
              Sample usage:            
                  config = get_value_from_cfg()            
              return:
                  return a dict        -->config[section][option]  such as config["twsm"]["dut_ip"]                
          '''    
      
          if not os.path.isfile(cfg_file):
              return
      
          cfg = {}   
          config = ConfigParser.RawConfigParser()
          
          try:
              config.read(cfg_file)
          except Exception as e:
      #         raise Exception("\n\tcommon exception 1.2: Not a well format configuration file. error: '%s'" %(e))
              return        
          for section in config.sections():
              cfg[section] = {}
              for option in config.options(section):
                  cfg[section][option]=config.get(section,option)
          return cff get_value_from_cfg(cfg_file):
          ''' initial the configuration with file that you specify 
              Sample usage:            
                  config = get_value_from_cfg()            
              return:
                  return a dict        -->config[section][option]  such as config["twsm"]["dut_ip"]                
          '''    
      
          if not os.path.isfile(cfg_file):
              return
      
          cfg = {}   
          config = ConfigParser.RawConfigParser()
          
          try:
              config.read(cfg_file)
          except Exception as e:
      #         raise Exception("\n\tcommon exception 1.2: Not a well format configuration file. error: '%s'" %(e))
              return        
          for section in config.sections():
              cfg[section] = {}
              for option in config.options(section):
                  cfg[section][option]=config.get(section,option)
          return cfg
docs: initial the configuration with file that you specify 
              Sample usage:            
                  config = get_value_from_cfg()            
              return:
                  return a dict        -->config[section][option]  such as config["twsm"]["dut_ip"]