python 寫的搜尋引擎 - 原始碼

import requests, re, time, webbrowser, codecs
print('==========搜尋引擎==========')
time.sleep(0.7)
headers = {'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8',
'Accept-Encoding':'gzip, deflate, sdch',
'Accept-Language':'zh-CN,zh;q=0.8',
'Cache-Control':'max-age=0',
'Connection':'keep-alive',
'Cookie':'SRCHD=AF=NOFORM; SRCHUID=V=2&GUID=E4CB65F3BD7F4EC7922E3642567A39EC&dmnchg=1; _EDGE_V=1; MUID=24CC781F18B266D70F9C758D199C670F; MUIDB=24CC781F18B266D70F9C758D199C670F; SRCHUSR=DOB=20190707&T=1562487393000; SNRHOP=I=&TS=; _EDGE_S=mkt=zh-cn&SID=2C85ED242A1D66051D4FE0B62B33673B; _SS=SID=2C85ED242A1D66051D4FE0B62B33673B&HV=1562490664; SRCHHPGUSR=CW=1089&CH=1742&DPR=1&UTC=480&WTS=63698084193&PR=3',
'DNT':'1',
'Host':'cn.bing.com',
'Upgrade-Insecure-Requests':'1',
'User-Agent':'Mozilla/5.0 (iPhone; CPU iPhone OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1'}
try:
try:
while True:
web_ids = {}
test = []
search = input('輸入搜尋的內容：')
page = [11, 21, 31, 41, 51]

        def catch():
            global webs
            id_times = 0
            for t in page:
                url = 'https://cn.bing.com/search?q=' + search + '&qs=n&sp=-1&pq&sc=0-5&sk=&cvid=275512403280414F9363B7CDC7368CBD&first=' + str(t) + '&FORM=PERE'
                text = requests.get(url, headers=headers).text
                a1 = '<h2>(.*?)</h2>'
                a2 = 'href="(.*?)"'
                a3 = '>(.*?)</a>'
                title = re.findall(a1, text)
                for j in title:
                    id_times = id_times + 1
                    title = re.findall(a3, j)
                    webs = re.findall(a2, j)
                    web_ids[id_times] = webs
                    print(id_times, title[0])
                    print('網址：%s' % webs[0])
                    print()
                    if len(webs) > 0:
                        test.append(1)

            if len(test) > 0:
                print('開啟網址（如需開啟多個網址，請用英文符號“,”，使用其它鍵預設不開啟任何網址）')
                open_web = input('網址編號：').split(',')
                if 'n' not in open_web:
                    for aweb in open_web:
                        if aweb.isdigit():
                            ty = int(aweb)
                            if ty in web_ids:
                                web = web_ids[ty]
                                webbrowser.open(web[0])

                else:
                    print('沒有符合您的搜尋結果！')
                print('==============================')

        catch()

except KeyboardInterrupt:
    exit()

except requests.exceptions.ConnectionError:
print('抱歉，網路出現了一點問題！')
time.sleep(3)
exit()