Python: i'm having an issue with my if else statement

My if and else statement works but when i press the button i created for it, i get no results from it and i am not sure if its the cmds.setKeyframe i have set up within the statement thats causing the issue.

class Shells(object):  
def __init__(self): #initializing the class ShellsUI
    self.Shells = [] #empty list
    self.currentX = 0 # this is where the ball is placed
    self.space = 4 # spacing of the cups

def createUI(self):
    #Test to see if the window exists
    if cmds.window('ShellsWin', exists=True):
        #delete the window
       cmds.deleteUI('ShellsWin')
    #create a new window
    cmds.window('ShellsWin', title='Shells Game UI')
    cmds.columnLayout()
    cmds.rowColumnLayout( numberOfColumns=2, columnAttach=(3, 'right', 0), columnWidth=[(1, 100), (2, 250)] )
    #    Attach commands to pass focus to the next field if the Enter
    #    key is pressed. Hitting just the Return key will keep focus
    #    in the current field.
    cmds.button( label='start Game',command=partial (self.startGame) ) #not sure if i need a start game button you will see later on if its needed or not.
    cmds.rowColumnLayout( numberOfColumns=1, columnAttach=(3, 'right', 0), columnWidth=[(1, 100), (2, 250)] )
    cmds.text(label='choose cup', align='center')
    cmds.button(label='cup1',command=partial(self.chooseCup))
    cmds.button(label='cup2',command=partial(self.chooseCup))
    cmds.button(label='cup3',command=partial(self.chooseCup))
    cmds.showWindow()

    cmds.file(new=True,force=True)              
    getObj = cmds.file("F:/python/cupz.obj",i=True,type="OBJ",groupName=True)

def startGame(self,args=None): #animate objects with the start of the button             

    cmds.play( forward=True )

    cmds.setKeyframe("cup_1.tx",t=0,v=0)
    cmds.setKeyframe("cup_1.tz",t=0,v=0)
    #
    cmds.setKeyframe("cup_1.tx",t=100,v=0)
    cmds.setKeyframe("cup_1.tz",t=100,v=0)

    cmds.setKeyframe("cup_2.tx",t=0,v=0)
    cmds.setKeyframe("cup_2.tz",t=0,v=0)
    #
    cmds.setKeyframe("cup_2.tx",t=100,v=0)
    cmds.setKeyframe("cup_2.tz",t=100,v=0)

    cmds.setKeyframe("cup_3.tx",t=0,v=0)
    cmds.setKeyframe("cup_3.tz",t=0,v=0)
    #
    cmds.setKeyframe("cup_3.tx",t=100,v=0)
    cmds.setKeyframe("cup_3.tz",t=100,v=0)



    for x in range (0,100):
        cmds.setKeyframe('cup_1.tx',t=x,v=m.sin(x)*15)
        cmds.setKeyframe('cup_1.tz',t=x,v=m.cos(x)*13)

    for x in range (1,100):
        cmds.setKeyframe('cup_2.tx',t=x,v=m.cos(x)*18)
        cmds.setKeyframe('cup_2.tz',t=x,v=m.sin(x)*12)

    for x in range (1,100):
        cmds.setKeyframe('cup_3.tx',t=x,v=m.sin(x)*15)
        cmds.setKeyframe('cup_3.tz',t=x,v=m.cos(x)*13)        





def chooseCup(self,cup):
    chooseCup = "cup"
    if cup == ('cup_1'):
        cmds.setKeyframe("cup_1.ty",t=0,v=0)
        cmds.setKeyframe("cup_1.tx",t=0,v=0)

        cmds.setKeyframe("cup_1.ty",t=24,v=5)
        cmds.setKeyframe("cup_1.rx",t=24,v=-25)
    elif chooseCup: None

    if cup == ('cup_2'):
        cmds.setKeyframe("cup_2.ty",t=0,v=0)
        cmds.setKeyframe("cup_2.tx",t=0,v=0)

        cmds.setKeyframe("cup_2.ty",t=24,v=5)
        cmds.setKeyframe("cup_2.rx",t=24,v=-25)
    elif chooseCup: None

    if cup == ('cup_3'):
        cmds.setKeyframe("cup_3.ty",t=0,v=0)
        cmds.setKeyframe("cup_3.tx",t=0,v=0)

        cmds.setKeyframe("cup_3.ty",t=24,v=5)
        cmds.setKeyframe("cup_3.rx",t=24,v=-25)
    elif chooseCup: None
    else :
         print "out of range" 


def hiddenBall(self,ball):
    self.ball = cmds.polySphere()[0]
    cmds.setKeyframe("ball",t=100,v=r.randiant)

inst = Shells() #creating an instance of a class
inst.createUI()