Hey, @Pythonist,
You can try this,
##################################### Method 1
import mechanize
import cookielib
from BeautifulSoup import BeautifulSoup
import html2text
# Browser
br = mechanize.Browser()
# Cookie Jar
cj = cookielib.LWPCookieJar()
br.set_cookiejar(cj)
# Browser options
br.set_handle_equiv(True)
br.set_handle_gzip(True)
br.set_handle_redirect(True)
br.set_handle_referer(True)
br.set_handle_robots(False)
br.set_handle_refresh(mechanize._http.HTTPRefreshProcessor(), max_time=1)
br.addheaders = [('User-agent', 'Chrome')]
# The site we will navigate into, handling it's session
br.open('https://github.com/login')
# View available forms
for f in br.forms():
print f
# Select the second (index one) form (the first form is a search query box)
br.select_form(nr=1)
# User credentials
br.form['login'] = 'mylogin'
br.form['password'] = 'mypass'
# Login
br.submit()
print(br.open('https://github.com/settings/emails').read())