human
Solve the following python programming problem given the following code:
def register(config, args, deployer, log) : 
    def sighandler(sig, stack) : 
        reason = SIGNAL_MESSAGES [sig] 
        deployer.cancel_push (reason) 
@ deployer.push_began 
    def on_push_began(deployer) : 
        signal.signal (signal.SIGINT, sighandler) 
        signal.signal (signal.SIGHUP, sighandler) 
        if args.testing : 
            log.warning ('*** Testing mode. No commands will be run. ***') 
log.notice ('*** Beginning push. ***') 
        log.notice ('Log available at %s', log.log_path) 
@ deployer.synchronize_began 
    def on_sync_began(deployer) : 
        log.notice ('Synchronizing build repos with GitHub...') 
@ deployer.resolve_refs_began 
    def on_resolve_refs_began(deployer) : 
        log.notice ('Resolving refs...') 
@ deployer.deploy_to_build_host_began 
    def on_deploy_to_build_host_began(deployer) : 
        log.notice ('Deploying to build host...') 
@ deployer.build_static_began 
    def on_build_static_began(deployer) : 
        log.notice ('Building static files...') 
@ deployer.process_host_began 
    def on_process_host_began(deployer, host) : 
        log.notice ('Starting host "%s"...', host) 
@ deployer.process_host_ended 
    def on_process_host_ended(deployer, host) : 
        host_index = (args.hosts.index (host) + 1) 
        host_count = len (args.hosts) 
        percentage = int (((float (host_index) / host_count) * 100)) 
        log.notice ('Host "%s" done (%d of %d -- %d%% done).', host, host_index, host_count, percentage) 
        if (args.hosts [(- 1)] == host) : 
            pass 
else : 
            if (args.hosts_before_pause == 1) : 
                args.hosts_before_pause = wait_for_input (log, deployer) 
else : 
                args.hosts_before_pause -= 1 
                sleep_with_countdown (log, args.sleeptime) 
@ deployer.push_ended 
    def on_push_ended(deployer) : 
        log.notice ('*** Push complete! ***') 
@ deployer.push_aborted 
    def on_push_aborted(deployer, exception) : 
        if isinstance (exception,...

    
    

    Fix the buggy line: deployer.host_error_prompt = args
assistant
#Here is Python program to fix the buggy line: deployer.

deployer.host_error_prompt = host_error_prompt