#Using Python Average Calculator

dataList=[]

def getdata():
    i=""
    while i != "END":
        i=input("Enter a number or 'END' to finish data input")
        dataList.append(i)

def mean():
    t=0
    for i in dataList:
        if i != "END":
            t =t + float(i)
    ave=t/(len(dataList)-1)
    return ave

getdata()

ave=mean()


print ("Data entered is \n",dataList, "\n Mean is ", ave)