Callback called before a method that is depended upon

[maximlt]

The Dependencies and Watchers guide shows that you can depend on a method, as in the example below:

import param

class D(param.Parameterized):
    x = param.Number(0)

    @param.depends('x', watch=True)
    def cb1(self):
        print(f"cb1 x={self.x}")

    @param.depends('cb1', watch=True)
    def cb2(self):
        print(f"cb2 x={self.x}")

d = D()
d.x = 5

Output:

cb1 x=5
cb2 x=5

However, if you swap the declaration of cb1 and cb2, cb2 is called first while I would have expected cb2 to always be called after cb1:

import param

class D(param.Parameterized):
    x = param.Number(0)

    @param.depends('cb1', watch=True)
    def cb2(self):
        print(f"cb2 x={self.x}")

    @param.depends('x', watch=True)
    def cb1(self):
        print(f"cb1 x={self.x}")

d = D()
d.x = 5

Output:

cb2 x=5
cb1 x=5