#!/usr/bin/env python

import sys, os, time

import Tkinter

# Callback for key events:

def keyEvent(event):

# print(event.char, event.keysym, event.keycode)

if event.char == 'q' or event.keysym == 'Return':

sys.exit(0)

def Usage():

print "Usage:", sys.argv[0], "minutes message"

sys.exit(1)

def showAlert(message):

# This is supposed to show a dialog, but tkMessageBox doesn't exist:

# tkMessageBox.showwarning("hello", message)

# Try to beep a bit, even though that doesn't work on some distros:

print ""

# print message

root = Tkinter.Tk()

button = Tkinter.Button(root, text=message,

bg="red", activebackground="red",

fg="white", activeforeground="white",

font=("Sans", 40, "bold"),

command=quit)

# Make sure the window is at least as big as the screen:

button.pack(ipadx=root.winfo_screenwidth()/2,

ipady=root.winfo_screenheight()/2)

# Apparently we can't bind key events to a button, only to the root:

root.bind("<Key>", keyEvent)

root.mainloop()

# main: read the runtime arguments.

if __name__ == '__main__':

try:

sleeptime = float(sys.argv[1]) * 60

except ValueError, e:

Usage()

if len(sys.argv) > 2:

message = ' '.join(sys.argv[2:])

else:

message = "Wake up!"

print "Sleeping for", sleeptime, "seconds with message:", message

# Return control to the shell before sleeping:

rc = os.fork()

if rc:

sys.exit(0)

time.sleep(sleeptime)

showAlert(message)