old_contents: # Copyright 2014 Rico Antonio Felix
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # You may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from DatabaseConnection import DatabaseConnection
  from BankAccount import BankAccount
  
  
  class RecordsLoader:
      """Loads bank account records from local database file"""
  
      @staticmethod
      def load_records(database_file):
          """\
          Opens the specified local database file with the bank account records and store the
          records in-memory for usage with the aid of the dictionary data structure.
  
          Checks that the argument 'database_file' passed in is of type 'str' else an 'Exception' is raised.
  
          :param database_file: Name of the database file to load records from
          :return: Dictionary data structure with the bank account records
          """
          if type(database_file) != str:
              raise Exception(
                  "Invalid argument: database_file of type {} should be: <class 'str'>".format(type(database_file)))
          records = dict()
          database = DatabaseConnection(database_file)
          result_set = database.sql_statement(database.READ, "SELECT * FROM accounts")
          for record in result_set:  # grab each record from the result-set
              records[record[4]] = BankAccount(record[0], record[1], record[2], record[3])
          database.close()
          return records
  
new_contents: # Copyright 2014 Rico Antonio Felix
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from DatabaseConnection import DatabaseConnection
  from BankAccount import BankAccount
  
  
  class RecordsLoader:
      """Loads bank account records from local database file"""
  
      @staticmethod
      def load_records(database_file):
          """\
          Opens the specified local database file with the bank account records and store the
          records in-memory for usage with the aid of the dictionary data structure.
  
          Checks that the argument 'database_file' passed in is of type 'str' else an 'Exception' is raised.
  
          If the specified database file doesn't exist an 'Exception' is raised.
  
          :param database_file: Name of the database file to load records from
          :return: Dictionary data structure with the bank account records
          """
          if type(database_file) != str:
              raise Exception(
                  "Invalid argument: database_file of type {} should be: <class 'str'>".format(type(database_file)))
          database = DatabaseConnection(database_file)
          records = dict()
          result_set = database.sql_statement(database.READ, "SELECT * FROM accounts")
          for record in result_set:  # grab each record from the result-set
              records[record[4]] = BankAccount(record[0], record[1], record[2], record[3])
          database.close()
          return records
  
subject: Update RecordsLoader.py