old_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import, unicode_literals, division
  from armet.http import client
  
  
  class BaseHTTPException(BaseException):
      status = None
  
      def __init__(self, content=None, headers=None):
          #! Body of the exception message.
          self.content = content
  
          #! Additional headers to place with the response.
          self.headers = headers or {}
  
  
  class Forbidden(BaseHTTPException):
      status = client.FORBIDDEN
  
  
  class NotFound(BaseHTTPException):
      status = client.NOT_FOUND
  
  
  class MethodNotAllowed(BaseHTTPException):
      status = client.METHOD_NOT_ALLOWED
  
      def __init__(self, allowed):
          super(MethodNotAllowed, self).__init__(
              headers={'Allowed': ', '.join(allowed)})
  
  
  class NotAcceptable(BaseHTTPException):
      status = client.NOT_ACCEPTABLE
  
  
  class UnsupportedMediaType(BaseHTTPException):
      status = client.UNSUPPORTED_MEDIA_TYPE
  
  
  class InternalServerError(BaseHTTPException):
      status = client.INTERNAL_SERVER_ERROR
  
  
  class NotImplemented(BaseHTTPException):
      status = client.NOT_IMPLEMENTED
  
new_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import, unicode_literals, division
  from armet.http import client
  
  
  class BaseHTTPException(BaseException):
      status = None
  
      def __init__(self, content=None, headers=None):
          #! Body of the exception message.
          self.content = content
  
          #! Additional headers to place with the response.
          self.headers = headers or {}
  
  
  class BadRequest(BaseHTTPException):
      status = client.BAD_REQUEST
  
  
  class Forbidden(BaseHTTPException):
      status = client.FORBIDDEN
  
  
  class NotFound(BaseHTTPException):
      status = client.NOT_FOUND
  
  
  class MethodNotAllowed(BaseHTTPException):
      status = client.METHOD_NOT_ALLOWED
  
      def __init__(self, allowed):
          super(MethodNotAllowed, self).__init__(
              headers={'Allowed': ', '.join(allowed)})
  
  
  class NotAcceptable(BaseHTTPException):
      status = client.NOT_ACCEPTABLE
  
  
  class UnsupportedMediaType(BaseHTTPException):
      status = client.UNSUPPORTED_MEDIA_TYPE
  
  
  class InternalServerError(BaseHTTPException):
      status = client.INTERNAL_SERVER_ERROR
  
  
  class NotImplemented(BaseHTTPException):
      status = client.NOT_IMPLEMENTED
  
subject: Add bad request.