KeyError exception unnecessarily raised about iexfinance HOT 1 OPEN

      87     def _get_field(self, endpoint, field):                                                          
      88         try:                                                                                        
      89             data = getattr(self, "get_%s" % endpoint)(filter_=field)                                
      90         except AttributeError:                                                                      
      91             raise NotImplementedError("Endpoint %s not implemented." % endpoint)                    
      92         try:                                                                                        
      93             if self.output_format == "json":                                                        
      94                 if self.single_symbol:                                                              
      95                     data = data[field]                                                              
      96                 else:                                                                               
      97                     data = {symbol: data[symbol][field] for symbol in self.symbols}                 
      98             else:                                                                                   
      99                 if self.single_symbol:                                                              
     100                     return data[field][0]                                                           
     101         except KeyError:                                                                            
     102             raise KeyError("Field %s not found in %s." % (field, endpoint))                         
     103         return data