Python tkinter Radiobutton solution

import tkinter as tk
my_w=tk.Tk()
my_w.geometry('500x500')
def my_upd():
 if(r1_v.get()==1):
    c1_v.set(1)
    c2_v.set(0)
 elif(r1_v.get()==2):
        c1_v.set(0)
        c2_v.set(1)
    
r1_v=tk.IntVar() # Decleared Integer variable

r1=tk.Radiobutton(my_w,text='PHP',variable=r1_v,value=1,command=my_upd)
r1.grid(row=1,column=1)

r2=tk.Radiobutton(my_w,text='Python',variable=r1_v,value=2,command=my_upd)
r2.grid(row=1,column=2)

c1_v=tk.IntVar() # Decleared Integer variable
c1=tk.Checkbutton(my_w,text='PHP',variable=c1_v,onvalue=1,offvalue=0)
c1.grid(row=2,column=1)

c2_v=tk.IntVar()
c2=tk.Checkbutton(my_w,text='Python',variable=c2_v,onvalue=1,offvalue=0)
c2.grid(row=2,column=2)

my_w.mainloop()