Basic login to craigslist using python

craigslist_login.py

import requests


# Some headers may bbe omitted, but IMO it's best to keep these:
headers = {"User-Agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36",
           "Host": "accounts.craigslist.org",
           "Origin": "https://accounts.craigslist.org",
           "Referer": "https://accounts.craigslist.org/login"}

# form POST data
data = {"step": "confirmation",
        "inputEmailHandle": "user@example.com",
        "inputPassword": "password"}

# Session object to keep cookies and stuff
s = requests.Session()

# First just GET the login page to get the cookies and other
# stuff that's often unique for a session
s.get("https://accounts.craigslist.org/login")

# Make a POST request with headers and form data from above that
# will log us in
r = s.post('https://accounts.craigslist.org/login',
           headers=headers, data=data)

# We should now be logged in, GET the home page
r = s.get("https://accounts.craigslist.org/login/home")
print r.text  # Shows HTML of the home page

Hi, I was able to use this code to log into my craigslist account without any issues. But when I was trying to use for other website logins (like pge, bank accounts), I couldn't make it work. I did make all the necessary changes without modifying the template of your code. Can you please give me some general ideas about what might have gone wrong? Thank you