Python 设置tornado.web.Application时出现的问题
在tornado(python)中,我没有创建tornado.web.Application()的实例,而是尝试在类中进行更改,同时使用init调用它Python 设置tornado.web.Application时出现的问题,python,django,python-3.x,tornado,Python,Django,Python 3.x,Tornado,在tornado(python)中,我没有创建tornado.web.Application()的实例,而是尝试在类中进行更改,同时使用init调用它 import tornado.web import tornado.httpserver import tornado.ioloop import tornado.options import os.path from tornado.options import define, options define("port", default=
import tornado.web
import tornado.httpserver
import tornado.ioloop
import tornado.options
import os.path
from tornado.options import define, options
define("port", default=8000, help="run on the given port", type=int)
class MainHandler(tornado.web.RequestHandler):
def get(self):
self.render("index.html", page_title="My Bookstore | HOME", header_text="Welcome to My Bookstore!")
class Application(tornado.web.Application):
def __init__(self):
handlers = [
(r'/', MainHandler),
]
settings = dict(
template_path = os.path.join(os.path.dirname(__file__), "templates"),
static_path = os.path.join(os.path.dirname(__file__), "static"),
debug = True
)
tornado.web.Application(self, handlers, **settings)
if __name__ == "__main__":
tornado.options.parse_command_line()
#Note: not creating an instance of application here ('app'), just creating a list of handlers and a dict of settings and passing it to the superclass.
http_server = tornado.httpserver.HTTPServer(Application())
http_server.listen(options.port)
tornado.ioloop.IOLoop.instance().start()
但我得到了这个错误
Traceback (most recent call last):
File "main.py", line 44, in <module>
http_server = tornado.httpserver.HTTPServer(Application())
File "main.py", line 27, in __init__
tornado.web.Application(self, handlers, **settings)
File "C:\Python\Python37\lib\site-packages\tornado\web.py", line 2065, in __init__
handlers = list(handlers or [])
TypeError: 'Application' object is not iterable
回溯(最近一次呼叫最后一次):
文件“main.py”,第44行,在
http_server=tornado.httpserver.httpserver(应用程序())
文件“main.py”,第27行,在_init中__
tornado.web.Application(self、handlers、**设置)
文件“C:\Python\Python37\lib\site packages\tornado\web.py”,第2065行,在\uuu init中__
处理程序=列表(处理程序或[])
TypeError:“应用程序”对象不可编辑
什么是错误,我如何解决它?当您初始化子类并希望使用父类的
\uuuu init\uuu
时,应该调用super
这个
应该是
super().__init__(handlers, **settings)
super().__init__(handlers, **settings)