python requests with redirection

Question

Trying to authenticate on http://72.ru site, noticed that there were a redirect to https://loginka.ru/auth/. Found that there were 302 POST with plain credentials in data form. Copying headers from Chrome can reproduce that in cURL, but still can't reach in requests module.

Warning: page is full of russian letters, registration in the box north-east

with requests.Session() as s:
    s.auth = ('EMAIL', 'PASSWD')

    s.post('http://72.ru/passport/login.php')
    p = s.get('http://72.ru/job/favorite/vacancy/')

    # will print True if logged
    print('some title from favorite page, if logged' in p.text)

Why can't authenticate, what am I doing wrong?

Answer 1

I think you need to specify allow_redirects=True

s.post('http://72.ru/passport/login.php', allow_redirects=True)

Answer 2

There is a much simpler way to perform login to this website.

import requests

headers = {
    "User-Agent":
        "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.101 Safari/537.36",
}

s = requests.session()
s.headers.update(headers)

# There is a dedicated login page, which is the url of the Login button on the site, you can open that directly. 
# Requests will automatically take care of rediects
s.get('https://loginka.ru/auth/?url=http%3A%2F%2F72.ru')

# Generate the post data
data = {
    'url': 'http://72.ru',
    'email': username,
    'password': password
}

# Perform the post request
r = s.post('https://loginka.ru/auth/?url=http%3A%2F%2F72.ru', data=data)

# There is an extra post request on this site which uses token from redirect url
token = r.url[r.url.index('token=')+6:]
url = 'http://72.ru/put_token_to_user/?token=' + token + '&dummy_put_token_to_user=yes'
headers2 = {'X-Requested-With': 'XMLHttpRequest', 'Referer': r.url}
r = s.get(url, headers=headers2)

r = s.get('http://72.ru/passport/mypage.php')
print r.url
print r.status_code
with open('abc.txt', 'wb') as f:
    f.write(r.content)