Hi there,

I'm currently updating an old app written for oTree 2 to oTree 5 and I'm surprised to see that everything works out of the box apart from a few minor modifications. In particular, all of the self. syntax works, for methods and whatnot.

Can we still use the old self. syntax in oTree 5?

—Geoffrey

yes you can use it. This page lists the differences: https://otree.readthedocs.io/en/latest/misc/otreelite.html

Thanks, great to hear! 

Is it also true for the pages? For example doing

```
class MyPage(Page):

    def vars_for_template(self):
        my_var = self.session.config['var']
```

PyCharm complains about the `self.session`: "Unresolved attribute reference 'session' for class 'MyPage'"
But it seems to work still.