post request automatic landing github

'' 'Access to the landing page 
request the URL of: 
https://github.com/login 
request method: 
GET 
request header: 
COOKIES 
the User-Agent: Mozilla / 5.0 (Windows NT 10.0; WOW64) AppleWebKit / 537.36 (KHTML, like Gecko) Chrome Safari /75.0.3770.100 / 537.36 
2. parse and extract the token string 
# regular 
<the INPUT of the type = "hidden" name = "authenticity_token" value = "(. *?)" /> 

# strings 
uj + bTJF3L3lfBg4YfijNJ0VPUqR0UWCmD0CPDGJY8jjT4GpzV6AYNx5VRFWzCxnpOdk3n62J9 / qzeXbQEwXTCw == 
'' ' 
Import requests 
Import Re 

LOGIN_URL =' 'https://github.com/login 
request header # login page 
login_header = { 
    ' - Agent-the User ':' the Mozilla / 5.0 (the Windows NT 10.0; the WOW64) AppleWebKit / 537.36 (KHTML, like Gecko) Chrome / 75.0.3770.100 Safari/537.36'

}
= requests.get login_res (URL = LOGIN_URL, headers = login_header) 
# Print (login_res.text) 
# direct extraction token string 
authenticity_token the re.findall = ( 
    '<INPUT type = "hidden" name = "authenticity_token" value = "( .? *) "/> ', 
    login_res.text, 
    re.S 
) [0] 
Print (authenticity_token) 
login_cookies = login_res.cookies.get_dict () 
# 2. began landing GitHub 
' '' POST request automatically log github: 
    request URL : https: //github.com/session 
    request method: POST 
    request header: 
    cookies 
    the User-- Agent: the Mozilla / 5.0 (the Windows NT 10.0; the WOW64) AppleWebKit / 537.36 (KHTML, like the Gecko) the Chrome / 75.0.3770.100 Safari / 537.36 
    request body: 
    the commit: Sign in 
    utf8: ✓
    authenticity_token: 0cfliMWH1jCxz8hDcBHBRSmN7sg6/VYvEAwnCdXUErfZPIfu52UGnh/S8mYguH1GAyGmBTuilMTXB6tL9Zsgzg==
    login: *****
    password: ******
    webauthn-support: supported

    '''
#session登陆url
session_url = 'https://github.com/session'
#请求头信息
session_headers = {
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36'
}
#请求体信息
form_data = {
    "commit": "Sign in",
            "utf8": "✓",
"authenticity_token": authenticity_token,
"login": "******  ",
"password":"******",
"webauthn - support": "supported"

}
session_res = requests.post(
    url=session_url,
    headers=session_headers,
    cookies=login_cookies,
    data=form_data
)
with open('github.html','w',encoding='utf-8')as f:
    f.write(session_res.text)