Wrapping of text in tkinter Text

import tkinter as tk
my_w = tk.Tk()
my_w.geometry("400x300")  
l1 = tk.Label(my_w,text='Your Name', width=10) #added one Label 
l1.grid(row=1,column=1) 
my_wrap=tk.StringVar(value='none')
t1 = tk.Text(my_w,width=15,height=4,bg='yellow',wrap=my_wrap.get())
t1.grid(row=1,column=2) 
def my_fun():
    if(t1['wrap']=='word'):
        t1.config(wrap='none')
    else:
        t1.config(wrap='word')
    #print(t1['wrap'])
menubar = tk.Menu(my_w)
menu_file = tk.Menu(menubar, tearoff=0,bg='yellow') # file
menu_edit=tk.Menu(menubar,tearoff=0)  # edit menu 
menubar.add_cascade(label="File", menu=menu_file) # Top Line
menu_file.add_checkbutton(label='Wrap',command=lambda:my_fun())
my_w.config(menu=menubar) # adding menu to window
my_w.mainloop()

Using Checkbutton

import tkinter as tk
my_w = tk.Tk()
my_w.geometry("400x300")  
l1 = tk.Label(my_w,text='Your Name', width=10) #added one Label 
l1.grid(row=1,column=1) 
my_wrap=tk.StringVar(value='none')
t1 = tk.Text(my_w,width=15,height=4,bg='yellow',wrap=my_wrap.get())
t1.grid(row=1,column=2) 
def my_fun():
    if(t1['wrap']=='word'):
        t1.config(wrap='none')
    else:
        t1.config(wrap='word')

c1 = tk.Checkbutton(my_w, text='Wrap text', command=lambda:my_fun())
c1.grid(row=2,column=1)    
my_w.mainloop()