human
Solve the following python programming problem given the following code:
@ signalcommand 
def handle(self, addrport = '', * args, **options) : 
    import django 
    startup_messages = options.get ('startup_messages', 'reload') 
    if (startup_messages == 'reload') : 
        self.show_startup_messages = os.environ.get ('RUNSERVER_PLUS_SHOW_MESSAGES') 
else : 
        if (startup_messages == 'once') : 
            self.show_startup_messages = (not os.environ.get ('RUNSERVER_PLUS_SHOW_MESSAGES')) 
else : 
            if (startup_messages == 'never') : 
                self.show_startup_messages = False 
else : 
                self.show_startup_messages = True 
os.environ ['RUNSERVER_PLUS_SHOW_MESSAGES'] = '1' 
    if hasattr (self.stderr, 'ending') : 
        self.stderr.ending = None 
setup_logger (logger, self.stderr, filename = options.get ('output_file', None)) 
    logredirect = RedirectHandler (__name__) 
    werklogger = logging.getLogger ('werkzeug') 
    werklogger.setLevel (logging.INFO) 
    werklogger.addHandler (logredirect) 
    werklogger.propagate = False 
    if options.get ('print_sql', False) : 
        try : 
            from django.db.backends import utils 
except ImportError : 
            from django.db.backends import util as utils 
try : 
            import sqlparse 
except ImportError : 
            sqlparse = None 
class PrintQueryWrapper (utils.CursorDebugWrapper) : 
            def execute(self, sql, params = ()) : 
                starttime = time.time () 
                try : 
                    return self.cursor.execute (sql, params) 
finally : 
                    raw_sql = self.db.ops.last_executed_query (self.cursor, sql, params) 
                    execution_time = (time.time () - starttime) 
                    therest = (' -- [Execution time: %.6fs] [Database: %s]' % (execution_time, self.db.alias)) 
                    if sqlparse : 
                        logger.info ((sqlparse.format (raw_sql, reindent = True) + therest)) 
else : 
                        logger.info ((raw_sql + therest)) 
utils.CursorDebugWrapper = PrintQueryWrapper...

    
    

    Fix the buggy line: debug.technical_500_response = (postmortem if cert_path else null_technical_500_response)
assistant
#Here is Python program to fix the buggy line: debug.

debug.technical_500_response = (postmortem if pm else null_technical_500_response)