Python Tkinter Radiobutton变量输出

Question

I'm trying to find a way to take the value from a Radiobutton, set it to a variable, and use the variable outside the class in other parts of my code. Heres a sample of my code:

from Tkinter import *

class Window():

    def __init__(self, master):

        self.master = master
        self.v1 = IntVar()

        Label(master, text="""Which Method?""",justify = LEFT, padx = 20).pack()
        Radiobutton(master, text="Positive",padx = 20, variable=self.v1, value=1).pack(anchor=W)
        Radiobutton(master, text="Negative", padx = 20, variable=self.v1, value=2).pack(anchor=W)
        Radiobutton(master, text="Both", padx = 20, variable=self.v1, value=3).pack(anchor=W)

Is there a way, preferably without use definitions and the command option, to set a variable "Method" to the value that the user selected? And then use that value outside the class.

I tried using Method=self.v1.get() but that didn't work.

Answer 1

from Tkinter import *

class Window():

    def __init__(self, master):

        self.master = master
        self.v1 = IntVar()

        Label(master, text="""Which Method?""",justify = LEFT, padx = 20).pack()
        Radiobutton(master, text="Positive",padx = 20, variable=self.v1, value=1).pack(anchor=W)
        Radiobutton(master, text="Negative", padx = 20, variable=self.v1, value=2).pack(anchor=W)
        Radiobutton(master, text="Both", padx = 20, variable=self.v1, value=3).pack(anchor=W)

root = Tk()
w = Window(root)
w.master.mainloop()

print "The radiobutton outside of the class: %d" %w.v1.get()

Here is an example of what I mean in my comment. My example should print the value of whichever Radiobutton is currently selected when you close the window.

In your case, depending on whichever value the Radiobutton has, you would decide which functions to call.