python爬虫操作cookie

import requests
try:
    import cookielib
except:
    import http.cookiejar as cookielib



session = requests.session()
session.cookies = cookielib.LWPCookieJar(filename="cookies.txt")





#服务器返回的 cookie 可以保存到本地
response_text = session.post(post_url, data=post_data, headers=header)
session.cookies.save()



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try:
    session.cookies.load(ignore_discard=True)
except:
    print ("cookie未能加载")