How do I make tkinter text entry to all uppercase?

[Thekid]

I have a toplevel window in tkinter that has some entry fields. Is there a way that I can get it to change the letters typed in it to uppercase, either as they're typed or after they're typed, while in the entry field? I don't want whatever is typed in to print out to IDLE. So as an example:

from Tkinter import *
win = Tk()
 
Label(win, text='Enter user nick:').pack(side=LEFT)
Entry(win, width=20).pack(side=LEFT)
 
mainloop()
 

As, or after I type Thekid in the entry box, I'd like it to turn to all caps.

[bvdet]

You can bind an event to your widget that calls a function to convert the text to upper case. You will need to initialize a textvariable for the Entry widget. In your case, there is nothing else to take the focus, otherwise you could bind "<FocusOut>" to the widget. "<KeyRelease>" works nicely however.

from Tkinter import *
win = Tk()
 
def caps(event):
    v.set(v.get().upper())
 
Label(win, text='Enter user nick:').pack(side=LEFT)
v = StringVar()
w = Entry(win, width=20, textvariable=v)
w.pack(side=LEFT)
w.bind("<KeyRelease>", caps)
 
mainloop()

[Thekid]

I see! That works like a charm! Thanks