python cgi webpage won't redirect before background children processes finish

[yingjie]

Hi all,

I have a python cgi script which looks like this:

logfile = open('xxxxxxxxx')
print "Content-Type: text/html\n\n"
.....
print '    <meta http-equiv="refresh" content="15;url=%s" />' % myURL
......
### after printing the page
os.system('python myfile.py &')
logfile.write('END OF SCRIPT')
logfile.close()
 

Question: I want this cgi webpage to automatically redirect to myURL after 15 seconds. As soon as the execution of this script finishes, the corresponding job disappears from ps command output, the webpage is displayed and the log file is written. However, the webpage doesn't redirect after 15 seconds unless the background child process 'python myfile.py' finishes by then.

Is this problem caused by initialing the children job through os.system() ? Does any one know what I need to change to make the redirection work before background children processes finish?