python random IndexError: list index out of range

Question

i try to use this python code this but i dont know what wrong pls help

def bbl(size):
    out_str = ''
    for _ in range(0, size):
        a = random.randint(65, 160)
        out_str += chr(a)
    return(out_str)

def UserAgProces():
    global t_user_agent
    global t_referer_list
    param_joiner = '&'
    uat = open('randua.txt', 'r')
    rft = open('randrf.txt', 'r')
    t_user_agent = uat.read().splitlines()
    t_referer_list = uat.read().splitlines()
    uareq = urllib.request.Request(url + param_joiner + bbl(random.randint(3,10)) + '=' + bbl(random.randint(3,10)))
        uareq.add_header('User-Agent', random.choice(t_user_agent))
        uareq.add_header('Cache-Control', 'no-cache')
        uareq.add_header('Accept-Charset', 'ISO-8859-1,utf-8;q=0.7,*;q=0.7')
        uareq.add_header('Referer', random.choice(t_referer_list) + bbl(random.randint(50,100)))
        uareq.add_header('Keep-Alive', random.randint(110,160))
        uareq.add_header('Connection', 'keep-alive')
        uareq.add_header('Host',host)

url=input('Url Or IP (eg. http/s://www.example.com/) : ')
UserAgProces()

error i get when try to run this. can someone help me i confused whats wrong with this

Traceback (most recent call last):
  File "main.py", line 39, in <module>
    UserAgProces()
  File "main.py", line 33, in UserAgProces
    uareq.add_header('Referer', random.choice(t_referer_list) + bbl(random.randint(50,100)))
  File "random.py", line 347, in choice
    return seq[self._randbelow(len(seq))]
IndexError: list index out of range

randrf.txt (some random referer text)

http://www.google.com/?q=
http://www.usatoday.com/search/results?q=
http://engadget.search.aol.com/search?q=
http://www.google.com/?q=
http://www.usatoday.com/search/results?q=
http://engadget.search.aol.com/search?q=
http://www.bing.com/search?q=
http://search.yahoo.com/search?p=
http://www.ask.com/web?q=
http://search.lycos.com/web/?q=
http://busca.uol.com.br/web/?q=
http://us.yhs4.search.yahoo.com/yhs/search?p=
http://www.dmoz.org/search/search?q=
http://www.baidu.com.br/s?usm=1&rn=100&wd=
http://yandex.ru/yandsearch?text=
http://www.zhongsou.com/third?w=
http://hksearch.timway.com/search.php?query=
http://find.ezilon.com/search.php?q=
http://www.sogou.com/web?query=
http://api.duckduckgo.com/html/?q=
http://boorow.com/Pages/sitebraspx?query=
http://validator.w3.org/check?uri=
http://validator.w3.org/checklink?uri=
http://validator.w3.org/unicorn/check?ucntask=conformance&ucnuri=
http://validator.w3.org/nu/?doc=
http://validator.w3.org/mobile/check?docAddr=
http://validator.w3.org/p3p/20020128/p3p.pl?uri=
http://www.icap2014.com/cms/sites/all/modules/ckeditorlink/proxy.php?url=
http://www.rssboard.org/rss-validator/check.cgi?url=
http://www2.ogs.state.ny.us/help/urlstatusgo.html?url=
http://prodvigator.bg/redirect.php?url=
http://validator.w3.org/feed/check.cgi?url=
http://www.ccm.edu/redirect/goto.asp?myURL=
http://forum.buffed.de/redirect.php?url=
http://rissa.kommune.no/engine/redirect.php?url=
http://www.sadsong.net/redirect.php?url=
https://www.fvsbank.com/redirect.php?url=
http://www.jerrywho.de/?s=/redirect.php?url=
http://www.inow.co.nz/redirect.php?url=
http://www.automation-drive.com/redirect.php?url=
http://mytinyfile.com/redirect.php?url=
http://ruforum.mt5.com/redirect.php?url=
http://www.websiteperformance.info/redirect.php?url=
http://www.airberlin.com/site/redirect.php?url=
http://www.rpz-ekhn.de/mail2date/ServiceCenter/redirect.php?url=
http://evoec.com/review/redirect.php?url=
http://www.crystalxp.net/redirect.php?url=
http://watchmovies.cba.pl/articles/includes/redirect.php?url=
http://www.seowizard.ir/redirect.php?url=
http://apke.ru/redirect.php?url=
http://seodrum.com/redirect.php?url=
http://redrool.com/redirect.php?url=
http://blog.eduzones.com/redirect.php?url=
http://www.onlineseoreportcard.com/redirect.php?url=
http://www.wickedfire.com/redirect.php?url=
http://searchtoday.info/redirect.php?url=
http://www.bobsoccer.ru/redirect.php?url=

randua.txt (some random user agent text)

Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/37.0.2062.94 Chrome/37.0.2062.94 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/600.8.9 (KHTML, like Gecko) Version/8.0.8 Safari/600.8.9
Mozilla/5.0 (iPad; CPU OS 8_4_1 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12H321 Safari/600.1.4
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.10240
Mozilla/5.0 (Windows NT 6.3; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/600.7.12 (KHTML, like Gecko) Version/8.0.7 Safari/600.7.12
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/600.8.9 (KHTML, like Gecko) Version/7.1.8 Safari/537.85.17
Mozilla/5.0 (iPad; CPU OS 8_4 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12H143 Safari/600.1.4
Mozilla/5.0 (iPad; CPU OS 8_3 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12F69 Safari/600.1.4
Mozilla/5.0 (Windows NT 6.1; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)
Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 5.1; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/600.6.3 (KHTML, like Gecko) Version/8.0.6 Safari/600.6.3
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/600.5.17 (KHTML, like Gecko) Version/8.0.5 Safari/600.5.17
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (iPhone; CPU iPhone OS 8_4_1 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12H321 Safari/600.1.4
Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko
Mozilla/5.0 (iPad; CPU OS 7_1_2 like Mac OS X) AppleWebKit/537.51.2 (KHTML, like Gecko) Version/7.0 Mobile/11D257 Safari/9537.53
Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)
Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (X11; CrOS x86_64 7077.134.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.156 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/600.7.12 (KHTML, like Gecko) Version/7.1.7 Safari/537.85.16
Mozilla/5.0 (Windows NT 6.0; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (iPad; CPU OS 8_1_3 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12B466 Safari/600.1.4
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/600.3.18 (KHTML, like Gecko) Version/8.0.3 Safari/600.3.18
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; Win64; x64; Trident/7.0; rv:11.0) like Gecko
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 8_1_2 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12B440 Safari/600.1.4
Mozilla/5.0 (Linux; U; Android 4.0.3; en-us; KFTT Build/IML74K) AppleWebKit/537.36 (KHTML, like Gecko) Silk/3.68 like Chrome/39.0.2171.93 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 8_2 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12D508 Safari/600.1.4
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0
Mozilla/5.0 (iPad; CPU OS 7_1_1 like Mac OS X) AppleWebKit/537.51.2 (KHTML, like Gecko) Version/7.0 Mobile/11D201 Safari/9537.53
Mozilla/5.0 (Linux; U; Android 4.4.3; en-us; KFTHWI Build/KTU84M) AppleWebKit/537.36 (KHTML, like Gecko) Silk/3.68 like Chrome/39.0.2171.93 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/600.6.3 (KHTML, like Gecko) Version/7.1.6 Safari/537.85.15
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/600.4.10 (KHTML, like Gecko) Version/8.0.4 Safari/600.4.10
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.78.2 (KHTML, like Gecko) Version/7.0.6 Safari/537.78.2
Mozilla/5.0 (iPad; CPU OS 8_4_1 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) CriOS/45.0.2454.68 Mobile/12H321 Safari/600.1.4
Mozilla/5.0 (Windows NT 6.3; Win64; x64; Trident/7.0; Touch; rv:11.0) like Gecko
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 8_1 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12B410 Safari/600.1.4
Mozilla/5.0 (iPad; CPU OS 7_0_4 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11B554a Safari/9537.53
Mozilla/5.0 (Windows NT 6.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 6.3; Win64; x64; Trident/7.0; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; TNJB; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36
Mozilla/5.0 (Windows NT 6.3; ARM; Trident/7.0; Touch; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; MDDCJS; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.0; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (Windows NT 6.2; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (iPhone; CPU iPhone OS 8_4 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12H143 Safari/600.1.4
Mozilla/5.0 (Linux; U; Android 4.4.3; en-us; KFASWI Build/KTU84M) AppleWebKit/537.36 (KHTML, like Gecko) Silk/3.68 like Chrome/39.0.2171.93 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 8_4_1 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) GSA/7.0.55539 Mobile/12H321 Safari/600.1.4
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; Touch; rv:11.0) like Gecko
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0
Mozilla/5.0 (iPhone; CPU iPhone OS 8_3 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12F70 Safari/600.1.4
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; MATBJS; rv:11.0) like Gecko
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; KFJWI Build/IMM76D) AppleWebKit/537.36 (KHTML, like Gecko) Silk/3.68 like Chrome/39.0.2171.93 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 7_1 like Mac OS X) AppleWebKit/537.51.2 (KHTML, like Gecko) Version/7.0 Mobile/11D167 Safari/9537.53
Mozilla/5.0 (X11; CrOS armv7l 7077.134.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.156 Safari/537.36
Mozilla/5.0 (X11; Linux x86_64; rv:34.0) Gecko/20100101 Firefox/34.0
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10) AppleWebKit/600.1.25 (KHTML, like Gecko) Version/8.0 Safari/600.1.25
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/600.2.5 (KHTML, like Gecko) Version/8.0.2 Safari/600.2.5
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.134 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/600.1.25 (KHTML, like Gecko) Version/8.0 Safari/600.1.25
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:39.0) Gecko/20100101 Firefox/39.0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11) AppleWebKit/601.1.56 (KHTML, like Gecko) Version/9.0 Safari/601.1.56
Mozilla/5.0 (Linux; U; Android 4.4.3; en-us; KFSOWI Build/KTU84M) AppleWebKit/537.36 (KHTML, like Gecko) Silk/3.68 like Chrome/39.0.2171.93 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B206 Safari/7534.48.3
Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 8_1_1 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12B435 Safari/600.1.4
Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.10240
Mozilla/5.0 (Windows NT 6.3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; LCJB; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; MDDRJS; rv:11.0) like Gecko
Mozilla/5.0 (Linux; U; Android 4.4.3; en-us; KFAPWI Build/KTU84M) AppleWebKit/537.36 (KHTML, like Gecko) Silk/3.68 like Chrome/39.0.2171.93 Safari/537.36
Mozilla/5.0 (Windows NT 6.3; Trident/7.0; Touch; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; LCJB; rv:11.0) like Gecko
Mozilla/5.0 (Linux; U; Android 4.0.3; en-us; KFOT Build/IML74K) AppleWebKit/537.36 (KHTML, like Gecko) Silk/3.68 like Chrome/39.0.2171.93 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 6_1_3 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10B329 Safari/8536.25
Mozilla/5.0 (Linux; U; Android 4.4.3; en-us; KFARWI Build/KTU84M) AppleWebKit/537.36 (KHTML, like Gecko) Silk/3.68 like Chrome/39.0.2171.93 Safari/537.36
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; ASU2JS; rv:11.0) like Gecko
Mozilla/5.0 (iPad; CPU OS 8_0_2 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12A405 Safari/600.1.4
Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_4) AppleWebKit/537.77.4 (KHTML, like Gecko) Version/7.0.5 Safari/537.77.4
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; rv:38.0) Gecko/20100101 Firefox/38.0
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; yie11; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; MALNJS; rv:11.0) like Gecko
Mozilla/5.0 (iPad; CPU OS 8_4_1 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) GSA/8.0.57838 Mobile/12H321 Safari/600.1.4
Mozilla/5.0 (Windows NT 6.3; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0
Mozilla/5.0 (Windows NT 10.0; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; MAGWJS; rv:11.0) like Gecko
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/600.5.17 (KHTML, like Gecko) Version/7.1.5 Safari/537.85.14
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.152 Safari/537.36
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; TNJB; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; NP06; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/600.4.8 (KHTML, like Gecko) Version/8.0.3 Safari/600.4.8
Mozilla/5.0 (iPad; CPU OS 7_0_6 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11B651 Safari/9537.53
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/600.3.18 (KHTML, like Gecko) Version/7.1.3 Safari/537.85.12
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko; Google Web Preview) Chrome/27.0.1453 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 8_0 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12A365 Safari/600.1.4
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; rv:39.0) Gecko/20100101 Firefox/39.0
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.94 AOL/9.7 AOLBuild/4343.4049.US Safari/537.36
Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 8_4 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) CriOS/45.0.2454.68 Mobile/12H143 Safari/600.1.4
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Firefox/38.0
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:39.0) Gecko/20100101 Firefox/39.0
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 8_4_1 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Mobile/12H321
Mozilla/5.0 (iPad; CPU OS 7_0_3 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11B511 Safari/9537.53
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/600.1.17 (KHTML, like Gecko) Version/7.1 Safari/537.85.10
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.130 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/600.2.5 (KHTML, like Gecko) Version/7.1.2 Safari/537.85.11
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; ASU2JS; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; MDDCJS; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.3; rv:40.0) Gecko/20100101 Firefox/40.0
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/534.34 (KHTML, like Gecko) Qt/4.8.5 Safari/534.34
Mozilla/5.0 (iPhone; CPU iPhone OS 7_0 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11A465 Safari/9537.53 BingPreview/1.0b
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0
Mozilla/5.0 (iPad; CPU OS 8_4 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) GSA/7.0.55539 Mobile/12H143 Safari/600.1.4
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36
Mozilla/5.0 (X11; CrOS x86_64 7262.52.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.86 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; MDDCJS; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36
Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/600.4.10 (KHTML, like Gecko) Version/7.1.4 Safari/537.85.13
Mozilla/5.0 (Unknown; Linux x86_64) AppleWebKit/538.1 (KHTML, like Gecko) PhantomJS/2.0.0 Safari/538.1
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; MALNJS; rv:11.0) like Gecko
Mozilla/5.0 (iPad; CPU OS 8_3 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) CriOS/45.0.2454.68 Mobile/12F69 Safari/600.1.4
Mozilla/5.0 (Android; Tablet; rv:40.0) Gecko/40.0 Firefox/40.0
Mozilla/5.0 (iPhone; CPU iPhone OS 7_1_2 like Mac OS X) AppleWebKit/537.51.2 (KHTML, like Gecko) Version/7.0 Mobile/11D257 Safari/9537.53
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10) AppleWebKit/600.2.5 (KHTML, like Gecko) Version/8.0.2 Safari/600.2.5
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_4) AppleWebKit/536.30.1 (KHTML, like Gecko) Version/6.0.5 Safari/536.30.1
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.125 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (Linux; U; Android 4.4.3; en-us; KFSAWI Build/KTU84M) AppleWebKit/537.36 (KHTML, like Gecko) Silk/3.68 like Chrome/39.0.2171.93 Safari/537.36
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.104 AOL/9.8 AOLBuild/4346.13.US Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; MAAU; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.152 Safari/537.36
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.132 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.74.9 (KHTML, like Gecko) Version/7.0.2 Safari/537.74.9
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 7_0_2 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11A501 Safari/9537.53
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; Touch; MAARJS; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36
Mozilla/5.0 (iPad; CPU OS 7_0 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11A465 Safari/9537.53
Mozilla/5.0 (Windows NT 10.0; Trident/7.0; rv:11.0) like Gecko
Mozilla/5.0 (iPad; CPU OS 8_3 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) GSA/7.0.55539 Mobile/12F69 Safari/600.1.4
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_4) AppleWebKit/537.78.2 (KHTML, like Gecko) Version/7.0.6 Safari/537.78.2
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; MASMJS; rv:11.0) like Gecko
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; FunWebProducts; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; MAARJS; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; BOIE9;ENUS; rv:11.0) like Gecko
Mozilla/5.0 (Linux; Android 4.4.2; SM-T230NU Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.84 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; EIE10;ENUSWOL; rv:11.0) like Gecko
Mozilla/5.0 (Windows NT 5.1; rv:39.0) Gecko/20100101 Firefox/39.0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:39.0) Gecko/20100101 Firefox/39.0
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; KFJWA Build/IMM76D) AppleWebKit/537.36 (KHTML, like Gecko) Silk/3.68 like Chrome/39.0.2171.93 Safari/537.36

I dont know what wrong i try another code but still have same error result

Answer 1

Here is the problem:

t_user_agent = uat.read().splitlines()
t_referer_list = uat.read().splitlines()

After calling uat.read() once, the file is exhausted. So when you call it the second time, it returns an empty list, and then later you call random.choice() on an empty list, which causes the error.

Did you intend the second one to be rft.read() instead of another call to uat.read() ?