def addOne( a ):
    global b
    print "addOne start:",a
    a = a + 1
    b = 8
    print "add one: b is", b
    print "addOne: a is:",a
    return(a)


a = 7
b = 5


RetVal = addOne(a)

print "RetVal is:", RetVal
print "outside the function, a is: ", a
print "outside the function, b is: ", b