[Tkinter] tkinter, dropdowns with changing options

[jdos]

I know that this is quite old but I am facing a similar issue. Does anyone know the answer? I am trying to create dependent dropdowns, for example something like this:

the drop_down is the main one and the other should change in relation on which choice you make on the main one.

drop_down =['one',
            'two']

dep_drop=['one_1',
          'one_2',
          'one_3']

dep2_drop['two_1','two_2','two_3']

This is a guess as I haven't used tkinter in a while, try changing line 29 to:

tkvar.trace('w', lambda: change_dropdown)

This quote gives an error

Error:
TypeError: <lambda>() takes 0 positional arguments but 3 were given