Learning about windows and stuff - Maya Python Mel

windowStuff.py

#from here - http://stackoverflow.com/questions/12309634/maya-python-how-to-close-a-custom-ui-window-after-the-user-has-pressed-enter

import maya.utils # you need this line!
class ReUI():
    def __init__(self):

        renUI = 'renUI'

        if cmds.window(renUI, exists = True):
            cmds.deleteUI(renUI)

        renUI = cmds.window(renUI, t = 'JT Rename UI', sizeable = True, tb = True, mnb = False, mxb = False, menuBar = True, tlb = False, nm = 5)
        form = cmds.formLayout()
        rowA = cmds.rowColumnLayout(w = 350, h = 30)



        item = cmds.ls(os = True)[0]

        #def ren():
        
        def renFc(self):
            print 'yes'
            #tval = cmds.textField(txtA, text = True, q = True)
            #cmds.rename(item, tval)
            #maya.utils.executeDeferred("cmds.deleteUI('renUI')") # and this one!

        def foo(self):
            print 'noooo'
        
        txtA = cmds.textField(w = 345, h = 28, text = item, ec = foo, aie = True)
        
        #ren()
        
        
        
            
            
        #maya.utils.executeDeferred("cmds.deleteUI('renUI')") # and this one!
            
            
        cmds.showWindow(renUI)



r = ReUI()