Merge pull request #68 from pageuppeople-opensource/task/SP-337_remove-null-character

[SP-337] Remove null characters from data frame

Author: ChintanRaval

rdl/data_sources/AWSLambdaDataSource.py

@@ -145,7 +145,9 @@ def __get_table_data(
         return result["ColumnNames"], data
 
     def __get_data_frame(self, data: [[]], column_names: []):
-        return pandas.DataFrame(data=data, columns=column_names)
+        return pandas.DataFrame(data=data, columns=column_names).replace(
+            regex=r"\x00", value=""
+        )
 
     def __invoke_lambda(self, pay_load):
         self.logger.debug("\nRequest being sent to Lambda:")