URL redirect

Hi Everyone,

I'm having trouble doing a redirect using the 'Location:' keyword in the
header. My code, near the top of the handler is:

Def index(req):

    # determine is we need a redirect. Set must_redirect to True is so ....

    if must_redirect:
        req.headers_out["HTTP/1.1"] = "301 Moved Permanently"
        req.headers_out["Location:"] = "http://www.example.com/"
        req.content_type = 'text/html'
        return ""

I get an empty page on he browser.

I've also tried:

Def index(req):

	If must_redirect:
	    s = """
HTTP/1.1 301 Moved Permanently
Location: http://www.example.org/
Content-Type: text/html
"""
        return s

I get a page with that exact text on it.

I'm using a publisher handler.

What am I doing wrong?

Thanks,
Kory