an attribute error in class page

[Min Fang]

Dear all,

I am trying to transform the old version of oTree  code into the newest one.

In pages.py of the old version, codes in class page are shown below

 

Now I have converted these codes as follows

When I started the oTree server,I got a traceback 

I have written 'for p in subsession.get_players()' in class subsession and it did work. How should I get the get_players() attribute work in class page?

Thanks,

Milley

[Chris @ oTree]

Hi, if you want to send me your project I can try upgrading it myself. (No guarantees depending on how complex it is, but I will try.)