Range progress bar/escape key

# Progress Bar for Range

import maya.cmds as mc

x = 1001
window = mc.window(t="Progress Bar")
mc.columnLayout()
progressControl = mc.progressBar(maxValue=x, width=300)
mc.showWindow( window )
for i in range(1,x):
    progressInc = mc.progressBar(progressControl, edit=True, pr=i+1)
    print i


# escape key
from pymel.core import*
i = 0
test = progressWindow(isInterruptable=1)
while 1 :
    i += 1
    print i
    if progressWindow(test, query=1, isCancelled=1 ) :
        print "killed at", i
        break

progressWindow(test, endProgress=1)