code: def bugzscout_app(environ, start_response):
      
      try:
          start_response('200 OK', [('content-type', 'text/html')])
          return ['Hellow world!']
      except Exception as ex:
          # Set the description to a familiar string with the exception
          # message. Add the stack trace to extra.
          b.submit_error('An error occurred in MyApp: {0}'.format(ex.message),
                         extra=traceback.extract_tb(*sys.exc_info()))
  
          # Reraise the exception.
          raise ex
docs: Simple WSGI application that returns 200 OK response with 'Hellow
      world!' in the body. If an uncaught exception is thrown, it is reported to
      BugzScout.
  
      :param environ: WSGI environ
      :param start_response: function that accepts status string and headers