werkzeug

contrib.sessionsがまさにほしかったもの。

これでcomet sideとweb sideのsessionの共有が可能になる。

session_store = FilesystemSessionStore()

def application(environ, start_response):
    request = Request(environ)
    sid = request.cookie.get('cookie_name')
    if sid is None:
        request.session = session_store.new()
    else:
        request.session = session_store.get(sid)
    response = get_the_response_object(request)
    if request.session.should_save:
        session_store.save(request.session)
        response.set_cookie('cookie_name', request.session.sid)
    return response(environ, start_response)