text: # coding: utf-8
  
  import warnings
  from traitlets.config.application import catch_config_error
  from .releaseassignmentapp import ReleaseAssignmentApp
  
  
  class ReleaseApp(ReleaseAssignmentApp):
  
      @catch_config_error
      def initialize(self, argv=None):
          super(ReleaseApp, self).initialize(argv=argv)
          msg = (
              "`nbgrader release` is now deprecated, please use `nbgrader "
              "release_assignment` instead. This command will be removed in "
              "a future version of nbgrader.")
          warnings.warn(msg, DeprecationWarning)
          self.log.warning(msg)
  