Question

我尝试解决“艰难学习Python”一书中的练习52，但我遇到了一定的错误。

这是一个使用web.py模块的练习。

当我使用“python bin / app.py”加载文件并使用浏览器查找页面时出现以下错误：

 public void refresh(ArrayList<Customer> customers){        
        this.customers = customers;
        notifyDataSetChanged();
    }

你能帮我找出这个错误发生的原因吗？

似乎这一行

AttributeError: 'ThreadedDict' object has no attribute 'room'

不会正确编辑会话文件。我解码了会话文件，得到了以下内容：

session.room = map.START

文件结构如下：

>>> x = base64.b64decode(open("sessions/15efb89316fa05f7c77e614ab1ddb70e918b9af3").read())
>>> pickle.loads(x)
{'ip': u'127.0.0.1', 'room': None, 'session_id': '15efb89316fa05f7c77e614ab1ddb70e918b9af3'}

app.py

.
├── bin
│   ├── app_old.py
│   ├── app.py
│   ├── app.pyc
│   ├── __init__.py
│   ├── __init__.pyc
│   └── session_sample.py
├── docs
├── gothonweb
│   └── __init__.pyc
├── __init__.py
├── __init__.pyc
├── map.py
├── map.pyc
├── sessions
│   └── 15efb89316fa05f7c77e614ab1ddb70e918b9af3
├── static
│   └── main.css
├── templates
│   ├── layout.html
│   ├── show_room.html
│   └── you_died.html
└── tests
    ├── app_tests.py
    ├── app_tests.pyc
    ├── __init__.py
    ├── __init__.pyc
    ├── map_tests.py
    ├── map_tests.pyc
    ├── tools.py
    └── tools.pyc

map.py

import web
import map

urls = (
        '/game', 'GameEngine',
        '/', 'Index',
    )

app = web.application(urls, globals())

# little hack so that debug mode works with sessions
if web.config.get('_session') is None:
    store = web.session.DiskStore('sessions')
    session = web.session.Session(app, store, initializer={'room': None})

else:
    session = web.config._session

render = web.template.render('templates/', base="layout")

class Index(object):
    def GET(self):
        # this is used to "setup" the session with starting values
        session.room = map.START
        print "session room var:" + str(session.room)
        web.seeother("/game")

class GameEngine(object):

    def GET(self):
        if session.room:
            return render.show_room(room=session.room)
        else:
            #why is there here? do you need it?
            return render.you_died()

    def POST(self):
        form = web.input(action=None)

        # there is a bug here, can you fix it?
        if session.room and form.action:
            session.room = session.room.go(form.action)

        web.seeother("/game")

if __name__ == "__main__":
    app.run()

LPTHW练习52：属性错误

0 个答案: