#!/usr/bin/python
#######################################################
# runs on the server, reads form input, prints html;
# url=http://server-name/root-dir/Basics/test3.cgi
#######################################################

import cgi
form = cgi.FieldStorage()            # parse form data
print "Content-type: text/html"      # plus blank line

html = """
<TITLE>test3.cgi</TITLE>
<H1>Greetings</H1>
<HR>
<P>%s</P>
<HR>"""

if not form.has_key('user'):
    print html % "Who are you?"
else:
    print html % ("Hello, %s." % form['user'].value)