How to share session in the child application?

[HackerLZH]

The version of official cookbook is still 0.3 but I use the latest 0.61.When I learn how to share session in the child application, the solution given by official cookbook can't work. For example, after I used "session = web.ctx.session" in the child application, it reported an error as "AttributeError: 'ThreadedDict' object has no attribute 'session'" .It just did't share the session at all.
What should I do?

[cclauss]

Parent: web.ctx.session = session
Child: session = dict(web.ctx).get('session')

[HackerLZH]

Oh, I have written "session = web.session.Session(app, store, initializer={'login': 0, 'username': ''})" in my parent application. After I modified like you and used 'session.login' in the child application, it reported an error as "AttributeError: 'NoneType' object has no attribute 'login'". So it just means the session I get is None.

[cclauss]

Let's use assertions to see where the problem lies...

Parent:

web.cxt.session = web.session.Session(app, store, initializer={'login': 0, 'username': ''})
assert web.cxt.session, "Login failed!"

Child:

session = dict(web.ctx).get('session')
assert session, "Invalid session provided."

[HackerLZH]

Let's use assertions to see where the problem lies...
Parent:
web.cxt.session = web.session.Session(app, store, initializer={'login': 0, 'username': ''})
assert web.cxt.session, "Login failed!"
Child:
session = dict(web.ctx).get('session')
assert session, "Invalid session provided."

Traceback (most recent call last):
File "D:/Python/web.py/main.py", line 3, in
import enter
File "D:\Python\web.py\enter.py", line 23, in
assert session, "Invalid session provided."
AssertionError: Invalid session provided.

Ok, Invaid session provided

[cclauss]

Are we sure that the parent lines have already been run?

[HackerLZH]

Are we sure that the parent lines have already been run?

# parent.py

import web
import child
web.config.debug = False

urls = (
    '/child', child.app_child,
)

app = web.application(urls, globals())
db = web.database(
    dbn='mysql',
    host='127.0.0.1',
    port=3306,
    user='root',
    pw='password',
    db='webpy',
)

store = web.session.DBStore(db, 'sessions')
session = web.session.Session(app, store, initializer={'login': 0, 'username': ''})
web.ctx.session = session


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

# child.py

import web
web.config.debug = False

urls = (
    '/hello', 'hello'
)

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

session = dict(web.ctx).get('session')

class hello():
    def GET(self):
        return session.login

Something like that!

[cclauss]

Nope. (The previous post was reformatted with ```python and ``` for readability.)

The problem is that the line import child is going to run all code at global scope in client.py. This will mean that the client.py line session = dict(web.ctx).get('session') will get run before the parent.py line web.ctx.session = session

[HackerLZH]

Nope. (The previous post was reformatted with python and for readability.)
The problem is that the line import child is going to run all code at global scope in client.py. This will mean that the client.py line session = dict(web.ctx).get('session') will get run before the parent.py line web.ctx.session = session

So that's it, how can I run after the parent.py?

[cclauss]

Many ways to do it but perhaps the simplest is...

import web
web.config.debug = False

urls = (
    '/hello', 'hello'
)

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

class hello():
    def GET(self):
        return web.ctx.session.login

[HackerLZH]

Many ways to do it but perhaps the simplest is...
import web
web.config.debug = False

urls = (
'/hello', 'hello'
)

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

class hello():
def GET(self):
return web.ctx.session.login

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

No way, I think I just return to initial time! The simplest way you gave is the same as official cookbook.But it's version 0.3,and I use version 0.61.And I have tried the official cookbook twelve hours ago. I need the latest usage!

[HackerLZH]

I use python38， not python2