[mod_python] How te send many cookies using one request ?

I tried:
1) # multiple value cookie
	req.headers_out["Set-Cookie"] = user.out_cookie().output("") 
	
2) #many single value cookies		
	for cookie in user.out_cookies():
		req.headers_out["Set-Cookie"] = cookie.output("")

both sends only one Set-Cookie header with one value :(

TIA 
-- 
Mateusz Korniak
ANT sp z o.o. http://www.ant.gliwice.pl/