count down from a specific number from a number inputted in python
<p>basically I want var2 to make the bottle drop by that number e.g. when I type in 10 then 2 I want the bottle to count down in 2s like 10 8 6 4 2 0</p>

<pre><code>var = raw_input(" Enter bottle number ")
var2 = raw_input(" Enter how many bottle taken down ")

bottle_number = int(var)
bottle_down = int(var2)

countdown = ""                             

while bottle_number &gt; 0:                      

    print bottle_number, "bottles of beer on the wall,", bottle_number, "bottles of beer."
    print "Take one down and pass it around,", bottle_number - 1, "bottles of beer on the wall."
    print " "
    countdown = bottle_number - 1
    bottle_number = countdown


if bottle_number == 0:                        

    print """
    No more bottles of beer on the wall, no more bottles of beer.
    """
</code></pre>
