gspreadsheet python port

Ported the following into Python:
http://www.almaer.com/blog/archives/001382.html

import httplib, urllib,sys

# Auth
def auth(email, passwd):
    params = urllib.urlencode({
        'Email': email,
        'Passwd': passwd,
        'source': 'formula',
        'service':'wise'}
    )
    headers = {"Content-type": "application/x-www-form-urlencoded",
        "Accept": "text/plain"}
    conn = httplib.HTTPSConnection("www.google.com")
    conn.request("POST", "/accounts/ClientLogin", params, headers)
    response = conn.getresponse()
    data = ''.join(response.read())
    conn.close()
    import string
    d=data.split('\n')
    authinfo = ''
    for dd in d:
        auth = dd.split('=')
        if auth[0] == 'Auth':
            authinfo = auth[1]
            break
    if authinfo == '':
        print 'error auth'
        sys.exit(0)
    return authinfo

# Set formula
def setformula(row, col, formula, authinfo, key):
    XML = """<?xml version='1.0' ?>
        <entry xmlns="http://www.w3.org/2005/Atom" xmlns:gs="http://schemas.google.com/spreadsheets/2006">
        <gs:cell row='""" + row + """' col='"""+ col + """' inputValue='="""+formula+ """' />
        </entry>"""

    resultpath = "/feeds/cells/"+key+"/1/private/full"
    headers = {"Content-type": "application/atom+xml",
        "Authorization": "GoogleLogin auth="+authinfo}
    gsconn = httplib.HTTPConnection('spreadsheets.google.com')
    gsconn.request("POST", resultpath, XML, headers)
    result = gsconn.getresponse()
    resultxml = ''.join(result.read())
    gsconn.close()

# Get result
def getresult(row, col, authinfo, key):
    resultpath = "/feeds/cells/" + key + "/1/private/basic/" + row + col
    headers = {"Content-type": "application/atom+xml",
        "Authorization": "GoogleLogin auth="+authinfo}
    gsconn = httplib.HTTPConnection('spreadsheets.google.com')
    gsconn.request("GET", resultpath, '', headers)
    result = gsconn.getresponse()
    resultxml = ''.join(result.read())
    gsconn.close()

    from xml.dom.minidom import parse,parseString
    dom1 = parseString(resultxml)
    elems = dom1.getElementsByTagName('content')
    elem = elems[0]
    return elem.firstChild.nodeValue


def getGF(key, email, passwd, formula):
    authinfo = auth(email, passwd)
    setformula('1', '1', formula, authinfo, key)
    return getresult('A', '1', authinfo, key)

import sys, getopt

try:
    opts, args = getopt.getopt(sys.argv[1:],
        "k:u:p:f:h",
        ["key=","email=","password=","formula="])
    for o, a in opts:
        if o in ("-k", "--key"):
            key = a
        if o in ("-u", "--email"):
            email = a
        if o in ("-p", "--password"):
            passwd = a
        if o in ("-f", "--formula"):
            formula = a
        if o in ("-h", "--help"):
            print "gf.py -k KEY -u EMAIL -p PASSWORD -f FORMULA"
            sys.exit(0)
except getopt.error, msg:
    print "getopt: "+ msg
    sys.exit(0)

print getGF(key, email, passwd, formula)