form = cgi.FieldStorage()
            
if not (form.has_key("name") and form.has_key("addr")):
            
    print "<H1>Error</H1>"
            
    print "Please fill in the name and addr fields."
            
    return
            
print "<p>name:", form["name"].value
            
print "<p>addr:", form["addr"].value
            
...further form processing here...

请参考Python
Library Reference中href=http://www.python.org/doc/current/lib/node295.html>11.2.2 Using the cgi
module一节。

import crypt, getpass, pwd
            
            
def login():
            
    username = raw_input('Python login:')
            
    cryptedpasswd = pwd.getpwnam(username)[1]
            
    if cryptedpasswd:
            
        if cryptedpasswd == 'x' or cryptedpasswd == '*':
            
            raise "Sorry, currently no support for shadow passwords"
            
        cleartext = getpass.getpass()
            
        return crypt.crypt(cleartext, cryptedpasswd[:2]) == cryptedpasswd
            
    else:
            
        return 1

注意：例子中也提到了，现在还不支持shadow了的密码提取。

ps. 还有点话想说：这两个问题在Python Lib Ref里可以很容易的找到
解决办法，而且Python安装后都有这些手册，希望你能够善用！