how to pass frame object to other python file which have class?

[Rashmi002]

I am developing small application where f1.py file has one class which contain frame1.When i clicked on search button frame should replaced with frame2 and progressbar should be diplayed.but this progressbar's argumets are coming from f2.py which have one class.f2.pyis imported to f1.py for use of class methods.Now how can i replace this frame where there is a dependency of file f2.py on progressbar.How can i do?

f1.py

class demo{
f1=Frame(root)
f1.grid(...)
b=Button(f1,text="submit",command=change_frame)
b.grid(...)

def change_frame(self)
{

f1.grid_forget()
f2=Frame(root)

}

}


f2.py

class attachtodemo{
Progressbar(f2,....)

}