Tornado-Subprocess

Quote from site :
A module which allows you to spawn subprocesses from a tornado web application in a non-blocking fashion.

https://github.com/vukasin/tornado-subprocess

Example:

def print_res( status, stdout, stderr, has_timed_out ) :
     if status == 0:
         print "OK:"
         print stdout
     else:
         print "ERROR:"
         print stderr

 t = Subprocess( print_res, timeout=30, args=[ "cat", "/etc/passwd" ] )
 t.start()

 #start tornado 
 t.ioloop.start()