#!/usr/bin/python


import locale
import time
from tkinter import *

class fmMain(Frame):
    def createWidgets(self):
        self.txtOne = Entry(self)
        self.txtOne.pack()
        self.txtOne["width"] = 10
        self.btnOne = Button(self)
        self.btnOne["text"] = "Ïðîáà"
        self.btnOne["command"] = self.GetOne
        self.btnOne.pack()

    def __init__(self, master = None):
        Frame.__init__(self, master)
        self.pack()
        self.createWidgets()

    def GetOne(self):
        print (time.strftime('%A'))

# if the next line is removed all seams to work OK.
locale.setlocale(locale.LC_ALL, "")

main = fmMain()
main.mainloop()