import random


user_agents = [
    'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36',
    'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/537.36 (KHTML, like Gecko) '
    'Chrome/57.0.2987.133 Safari/537.36',
    'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/603.1.30 (KHTML, like Gecko) '
    'Version/10.1 Safari/603.1.30',
    'Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0',
    'Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b3) Gecko/20090305 Firefox/3.1b3 GTB5',
    'Mozilla/5.0 (Windows NT 10.0; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0',
    'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89'
    ' Safari/537.1 QIHU 360SE',
    'Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.108 Safari/537.36 '
    '2345Explorer/7.1.0.12633',
    'Mozilla/5.0 (X11; U; Linux x86_64; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Ubuntu/10.10 '
    'Chromium/8.0.552.237 Chrome/8.0.552.237 Safari/534.10',
    'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/34.0.1847.116 '
    'Chrome/34.0.1847.116 Safari/537.36',
    'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Win64; x64; Trident/6.0)',
    'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11) AppleWebKit/601.1.39 (KHTML, like Gecko) Version/9.0 '
    'Safari/601.1.39',
    'Opera/9.80 (Windows NT 5.1) Presto/2.12.388 Version/12.14',
    'Opera/9.80 (Linux armv6l ; U; CE-HTML/1.0 NETTV/3.0.1;; en) Presto/2.6.33 Version/10.60',
    'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; baidubrowser 1.x)'
]


headers = {
    'User-Agent': random.choice(user_agents),
    'Accept-Encoding': 'gzip, deflate, sdch',
    'Accept-Language': 'zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    'Connection': 'keep-alive'
}