procon_led.py

# coding: utf-8
import urllib,urllib2
from bs4 import BeautifulSoup
import serial
import datetime,time

def main():
	ser = serial.Serial('ここにデバイス名',9600)

	# コンテスト名，ユーザー名を入力
	print "Contest Name: ",
	contest_name = raw_input()
	print "User Name: ",
	user_name = raw_input()
	url = 'http://' + contest_name +'.contest.atcoder.jp/submissions/all?user_screen_name=' + user_name
	update_time = time.time()

	while True:
		print "update: " + str(datetime.datetime.now())

		response = urllib2.urlopen(url)
		# BeautifulSoupでhtmlをパース
		soup = BeautifulSoup(response, "html5lib")
		
		for cnt,tr in enumerate(soup.find_all("tr")):
			# この辺は適当
			if cnt == 0: continue
			dt = ""
			status = ""
			for i,td in enumerate(tr.find_all('td')):	
				if i == 0:
					dt = td.time.string
				if i == 6:
					status = td.span.string
			
			if dt == "": continue
			tm = datetime.datetime.strptime(dt[:-6],'%Y/%m/%d %H:%M:%S') + datetime.timedelta(hours=9)
			tm = time.mktime(tm.timetuple())
			# 新しい情報かつWaiting Judgeでないとき更新/Arduinoに送信
			if update_time < tm and not ('/' in list(status) or status == 'WJ'):
				update_time = tm
				print status
				if status == 'AC':
					ser.write('a')
				else:
					ser.write('w')
		time.sleep(5)
	ser.close()

if __name__ == '__main__':
	main()