Tornado rediret incurrir TypeError: initialize () falta 1 argumento posicional requerido: 'url'
Soy nuevo en el desarrollo de servicios web y tornados, y actualmente estoy implementando una pequeña web para practicar el módulo de tornados.
Este es el código de Python que utilicé para mi servidor
import bcrypt
import concurrent.futures
#import MySQLdb
#import markdown
import os.path
import re
import subprocess
#import torndb
import tornado.escape
from tornado import gen
import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web
import unicodedata
from tornado.options import define, options
define("port",default=8889,help='run on the given port',type=int)
class HomeHandler(tornado.web.RequestHandler):
def get(self):
#login here
self.render('index.html')
def post(self):
def readcodebook(codebook):
with open(codebook,'r+') as f:
CodeLines=f.read().split('\n')
combinations={}
for c in CodeLines:
if len(c)>0:
combinations[c.split('\t')[0]]=c.split('\t')[1]
return combinations
UserFile='/home/john/PyServer/Users/codebook.txt'
CodeBook=readcodebook(UserFile)
if self.get_argument("login") in CodeBook.keys():
if CodeBook[self.get_argument("login")]==self.get_argument("password"):
#correct pwd
self.redirect(self.get_argument("next","/display/"))
else:
#incorrect pwd
self.render("index.html", error='incorrect password!')
return
else:
#user not found
self.render("index.html", error="account not found!")
return
class DisplayHandler(tornado.web.RedirectHandler):
def get(self):
self.render("displaycontent.html")
pass
class Application(tornado.web.Application):
def __init__(self):
handlers = [
(r"/", HomeHandler),
(r"/display/", DisplayHandler),
]
settings = dict(
#blog_title=u"Tornado Blog",
template_path=os.path.join(os.path.dirname(__file__), "templates"),
static_path=os.path.join(os.path.dirname(__file__), "static"),
#ui_modules={"Entry": EntryModule},
#xsrf_cookies=True,
#cookie_secret="__TODO:_GENERATE_YOUR_OWN_RANDOM_VALUE_HERE__",
#login_url="/auth/login",
debug=True,
)
tornado.web.Application.__init__(self,handlers,**settings)
if __name__=="__main__":
tornado.options.parse_command_line()
http_server=tornado.httpserver.HTTPServer(Application())
http_server.listen(options.port)
tornado.ioloop.IOLoop.instance().start()
y este es el index.html para el inicio de sesión del usuario:
CSSFlow
Login Form
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<!DOCTYPE html>
<!--[if lt IE 7]> <html class="lt-ie9 lt-ie8 lt-ie7" lang="en"> <![endif]-->
<!--[if IE 7]> <html class="lt-ie9 lt-ie8" lang="en"> <![endif]-->
<!--[if IE 8]> <html class="lt-ie9" lang="en"> <![endif]-->
<!--[if gt IE 8]><!--> <html lang="en"> <!--<![endif]-->
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Login Form</title>
<link rel="stylesheet" href="css/style.css">
<!--[if lt IE 9]><script src="//html5shim.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
</head>
<body>
<section class="container">
<div class="login">
<h1>Login to Web App</h1>
<form method="post" action="/">
<p><input type="text" name="login" value="" placeholder="Username or Email"></p>
<p><input type="password" name="password" value="" placeholder="Password"></p>
<p class="remember_me">
<label>
<input type="checkbox" name="remember_me" id="remember_me">
Remember me on this computer
</label>
</p>
<p class="submit"><input type="submit" name="commit" value="Login"></p>
</form>
</div>
<div class="login-help">
<p>Forgot your password? <a href="index.html">Click here to reset it</a>.</p>
</div>
</section>
<section class="about">
<p class="about-links">
<a href="http://www.cssflow.com/snippets/login-form" target="_parent">View Article</a>
<a href="http://www.cssflow.com/snippets/login-form.zip" target="_parent">Download</a>
</p>
<p class="about-author">
© 2012–2013 <a href="http://thibaut.me" target="_blank">Thibaut Courouble</a> -
<a href="http://www.cssflow.com/mit-license" target="_blank">MIT License</a><br>
Original PSD by <a href="http://www.premiumpixels.com/freebies/clean-simple-login-form-psd/" target="_blank">Orman Clark</a>
</section>
</body>
</html>
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El problema ahora es que el tornado arrojará una excepción no detectada con la descripción a continuación y muestra el Error 404 no encontrado en el navegador web, cuando hago clic en el botón Enviar en index.html con el nombre de usuario y contraseña correctos:
[E 170108 11:21:55 http1connection:54] Uncaught exception
Traceback (most recent call last):
File "/home/gaobo/anaconda3/lib/python3.5/site-packages/tornado/http1connection.py", line 238, in _read_message
delegate.finish()
File "/home/gaobo/anaconda3/lib/python3.5/site-packages/tornado/httpserver.py", line 289, in finish
self.delegate.finish()
File "/home/gaobo/anaconda3/lib/python3.5/site-packages/tornado/web.py", line 2022, in finish
self.execute()
File "/home/gaobo/anaconda3/lib/python3.5/site-packages/tornado/web.py", line 2042, in execute
**self.handler_kwargs)
File "/home/gaobo/anaconda3/lib/python3.5/site-packages/tornado/web.py", line 183, in __init__
self.initialize(**kwargs)
TypeError: initialize() missing 1 required positional argument: 'url'
¿Alguien podría señalar una forma de solucionar este problema? ¡Muchas gracias!