text: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  #
  # Copyright 2019-2021 The Polypheny Project
  #
  # 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.
  
  # According do DB API 2.0 : https://www.python.org/dev/peps/pep-0249/#exceptions
  
  __all__ = [
      'Warning', 'Error', 'InterfaceError', 'DatabaseError', 'DataError',
      'OperationalError', 'IntegrityError', 'InternalError',
      'ProgrammingError', 'NotSupportedError',
  ]
  
  
  _StandardError = Exception
  
  
  class Warning(_StandardError):
      """Not yes used by this package, only defined for compatibility
      with DB API 2.0."""
  
  
  class Error(_StandardError):
      """Exception that is the base class of all other error exceptions.
      You can use this to catch all errors with one single except statement."""
  
      def __init__(self, message, code=None, sqlstate=None, cause=None):
          super(_StandardError, self).__init__(message, code, sqlstate, cause)
  
      @property
      def message(self):
          return self.args[0]
  
      @property
      def code(self):
          return self.args[1]
  
      @property
      def sqlstate(self):
          return self.args[2]
  
      @property
      def cause(self):
          return self.args[3]
  
  
  class InterfaceError(Error):
      """Exception raised for errors that are related to the database
      interface rather than the database itself."""
  
  
  class DatabaseError(Error):
      """Exception raised for errors that are related to the database."""
  
  
  class DataError(DatabaseError):
      """Exception raised for errors that are due to problems with the
      processed data like division by zero, numeric value out of range,
      etc."""
  
  
  class OperationalError(DatabaseError):
      """Raised for errors that are related to the database's operation and not
      necessarily under the control of the programmer, e.g. an unexpected
      disconnect occurs, the data source name is not found, a transaction could
      not be processed, a memory allocation error occurred during
      processing, etc."""
  
  
  class IntegrityError(DatabaseError):
      """Raised when the relational integrity of the database is affected, e.g. a foreign key check fails."""
  
  
  class InternalError(DatabaseError):
      """Raised when the database encounters an internal problem."""
  
  
  class ProgrammingError(DatabaseError):
      """Raises for programming errors, e.g. table not found, syntax error, etc."""
  
  
  class NotSupportedError(DatabaseError):
      """Raised when using an API that is not supported by the database."""
  