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POTornado set_secure_cookie unicode error
 

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  1. POTornado set_secure_cookie unicode error
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    <p><br> i recently try to follow <a href="http://www.tornadoweb.org/documentation/overview.html#cookies-and-secure-cookies" rel="nofollow">the tornado cookies and secure cookies overview</a> and make the example given.</p> <p>I got a strange error when my server try to execute set_secure_cookie(..):</p> <pre><code>File "/usr/local/lib/python2.7/dist-packages/tornado-2.4.1-py2.7.egg/tornado/escape.py", line 168, in utf8 assert isinstance(value, unicode) AssertionError </code></pre> <p><strong>What i'm doing wrong ?</strong></p> <p>My Tornado Server:</p> <pre class="lang-python prettyprint-override"><code>import tornado.auth import tornado.escape import tornado.httpserver import tornado.ioloop import tornado.options import tornado.web import Settings from tornado.options import define, options define("port", default=8888, help="run on the given port", type=int) class BaseHandler(tornado.web.RequestHandler): def get_current_user(self): return self.get_secure_cookie("user") class MainHandler(BaseHandler): @tornado.web.authenticated def get(self): name = tornado.escape.xhtml_escape(self.current_user) self.write("Hello, " + name) class LoginHandler(BaseHandler): def get(self): self.write('&lt;html&gt;&lt;body&gt;&lt;form action="/login" method="post"&gt;' 'Name: &lt;input type="text" name="name"&gt;' '&lt;input type="submit" value="Sign in"&gt;' '&lt;/form&gt;&lt;/body&gt;&lt;/html&gt;') def post(self): self.set_secure_cookie("user", self.get_argument("name")) self.redirect("/") class Application(tornado.web.Application): def __init__(self): handlers = [ (r"/", MainHandler), (r"/login", LoginHandler), ] settings = { "template_path":Settings.TEMPLATE_PATH, "static_path":Settings.STATIC_PATH, "debug":Settings.DEBUG, "cookie_secret": Settings.COOKIE_SECRET, "login_url": "/login" } tornado.web.Application.__init__(self, handlers, **settings) def main(): tornado.options.parse_command_line() http_server = tornado.httpserver.HTTPServer(Application()) http_server.listen(options.port) tornado.ioloop.IOLoop.instance().start() if __name__ == "__main__": main() </code></pre> <p>full traceback:</p> <pre><code>Traceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/tornado-2.4.1-py2.7.egg/tornado/web.py", line 1042, in _execute getattr(self, self.request.method.lower())(*args, **kwargs) File "/home/gvincent/Dropbox/workspace/scubabook/WebServer.py", line 31, in post self.set_secure_cookie("user", self.get_argument("name")) File "/usr/local/lib/python2.7/dist-packages/tornado-2.4.1-py2.7.egg/tornado/web.py", line 426, in set_secure_cookie self.set_cookie(name, self.create_signed_value(name, value), File "/usr/local/lib/python2.7/dist-packages/tornado-2.4.1-py2.7.egg/tornado/web.py", line 438, in create_signed_value name, value) File "/usr/local/lib/python2.7/dist-packages/tornado-2.4.1-py2.7.egg/tornado/web.py", line 2029, in create_signed_value signature = _create_signature(secret, name, value, timestamp) File "/usr/local/lib/python2.7/dist-packages/tornado-2.4.1-py2.7.egg/tornado/web.py", line 2066, in _create_signature hash = hmac.new(utf8(secret), digestmod=hashlib.sha1) File "/usr/local/lib/python2.7/dist-packages/tornado-2.4.1-py2.7.egg/tornado/escape.py", line 168, in utf8 assert isinstance(value, unicode) AssertionError </code></pre>
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    1. USGuillaume Vincent
    1. USGuillaume Vincent
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    1. COWhat is the *full* traceback?
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      1. USMartijn Pieters
    2. COI add the full traceback at the end of my question
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      1. USGuillaume Vincent
    3. COI think the problem is in the value of your `Settings.COOKIE_SECRET`. What value are you using?
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      1. USlbolla
 

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