old_contents: class MatrixError(Exception):
      """A generic Matrix error. Specific errors will subclass this."""
      pass
  
  
  class MatrixUnexpectedResponse(MatrixError):
      """The home server gave an unexpected response. """
  
      def __init__(self, content=""):
          super(MatrixError, self).__init__(content)
          self.content = content
  
  
  class MatrixRequestError(MatrixError):
      """ The home server returned an error response. """
  
      def __init__(self, code=0, content=""):
          super(MatrixRequestError, self).__init__("%d: %s" % (code, content))
          self.code = code
          self.content = content
  
  
  class MatrixHttpLibError(MatrixError):
      """The library used for http requests raised an exception."""
  
      def __init__(self, original_exception, method, endpoint):
          super(MatrixHttpLibError, self).__init__(
              "Something went wrong in {} requesting {}: {}".format(original_exception)
          )
          self.original_exception = original_exception
  
new_contents: class MatrixError(Exception):
      """A generic Matrix error. Specific errors will subclass this."""
      pass
  
  
  class MatrixUnexpectedResponse(MatrixError):
      """The home server gave an unexpected response. """
  
      def __init__(self, content=""):
          super(MatrixError, self).__init__(content)
          self.content = content
  
  
  class MatrixRequestError(MatrixError):
      """ The home server returned an error response. """
  
      def __init__(self, code=0, content=""):
          super(MatrixRequestError, self).__init__("%d: %s" % (code, content))
          self.code = code
          self.content = content
  
  
  class MatrixHttpLibError(MatrixError):
      """The library used for http requests raised an exception."""
  
      def __init__(self, original_exception, method, endpoint):
          super(MatrixHttpLibError, self).__init__(
              "Something went wrong in {} requesting {}: {}".format(method,
                                                                    endpoint,
                                                                    original_exception)
          )
          self.original_exception = original_exception
  
subject: Fix malformed error