關於隨機瀏覽頭僞裝fake-UserAgent

使用：

from fake_useragent import UserAgent

ua = UserAgent()
#ie瀏覽器的user agent
print(ua.ie)

Mozilla/5.0 (Windows; U; MSIE 9.0; Windows NT 9.0; en-US)

#opera瀏覽器
print(ua.opera)

Opera/9.80 (X11; Linux i686; U; ru) Presto/2.8.131 Version/11.11

#chrome瀏覽器
print(ua.chrome)

Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.2 (KHTML, like Gecko) Chrome/22.0.1216.0 Safari/537.2

#firefox瀏覽器
print(ua.firefox)

Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:16.0.1) Gecko/20121011 Firefox/16.0.1

#safri瀏覽器
print(ua.safari)

Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5355d Safari/8536.25

最實用的

但我認爲寫爬蟲最實用的是可以隨意變換headers，一定要有隨機性。在這裏我寫了三個隨機生成user agent，三次打印都不一樣，隨機性很強，十分方便。

from fake_useragent import UserAgent
ua = UserAgent()
print(ua.random)
print(ua.random)
print(ua.random)

Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:15.0) Gecko/20100101 Firefox/15.0.1
Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:16.0.1) Gecko/20121011 Firefox/16.0.1
Opera/9.80 (X11; Linux i686; U; ru) Presto/2.8.131 Version/11.11

爬蟲中具體使用方法

import requests
from fake_useragent import UserAgent
ua = UserAgent()
headers = {'User-Agent': ua.random}
url = '待爬網頁的url'
resp = requests.get(url, headers=headers)