old_contents: # Copyright 2014 David Tomaschik <david@systemoverlord.com>
  #
  # 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.
  
  # Custom error classes
  from werkzeug import exceptions
  
  
  class _MessageException(exceptions.HTTPException):
      """Message with JSON exception."""
  
      default_message = 'Error'
  
      def __init__(self, msg=None):
          msg = msg or default_message
          super(ValidationError, self).__init__()
          self.data = {'message': msg}
  
  
  class AccessDeniedError(_MessageException):
      """No access to the resource."""
      code = 403
  
  
  class ValidationError(_MessageException):
      """Error during input validation."""
      code = 400
  
  
  class InvalidAnswerError(AccessDeniedError):
      """Submitting the wrong answer."""
      default_message = 'Ha ha ha... No.'
  
  
  class LoginError(AccessDeniedError):
      """Failing to login."""
      default_message = 'Invalid username/password.'
  
  
  class ServerError(_MessageException):
      code = 500
  
new_contents: # Copyright 2014 David Tomaschik <david@systemoverlord.com>
  #
  # 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.
  
  # Custom error classes
  from werkzeug import exceptions
  
  
  class _MessageException(exceptions.HTTPException):
      """Message with JSON exception."""
  
      default_message = 'Error'
  
      def __init__(self, msg=None):
          msg = msg or default_message
          super(_MessageException, self).__init__()
          self.data = {'message': msg}
  
  
  class AccessDeniedError(_MessageException):
      """No access to the resource."""
      code = 403
  
  
  class ValidationError(_MessageException):
      """Error during input validation."""
      code = 400
  
  
  class InvalidAnswerError(AccessDeniedError):
      """Submitting the wrong answer."""
      default_message = 'Ha ha ha... No.'
  
  
  class LoginError(AccessDeniedError):
      """Failing to login."""
      default_message = 'Invalid username/password.'
  
  
  class ServerError(_MessageException):
      code = 500
  
subject: Fix refactoring bug.