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#!/usr/bin/env python import cgitb cgitb.enable() import cgi, os, urllib, md5 print "Content-type: text/html" print print """<HTML> <HEAD> <TITLE>CGI File Example</TITLE></HEAD><BODY>""" form = cgi.FieldStorage() if form.has_key('file'):     fileitem = form['file']     if not fileitem.file:         print "Error: not a file upload.<P>"     else:         print "Got file: %s<P>" % cgi.escape(fileitem.filename)         m = md5.new()         size = 0         while 1:             data = fileitem.file.read(4096)             if not len(data):                 break             size += len(data)             m.update(data)         print "Received file of %d bytes.  MD5sum is %s<P>" % \                 (size, m.hexdigest()) else:     print "No file found.<P>" print """<FORM METHOD="POST" ACTION="%s" enctype="multipart/form-data"> File: <INPUT TYPE="file" NAME="file"> """ % os.environ['SCRIPT_NAME'] print """<INPUT TYPE="submit" NAME="submit" VALUE="Submit"> </FORM> </BODY></HTML>"""