Demo/scripts/beer.py

   1 #! /usr/bin/env python
   2
   3 # By GvR, demystified after a version by Fredrik Lundh.
   4
   5 import sys
   6
   7 n = 100
   8 if sys.argv[1:]:
   9     n = int(sys.argv[1])
  10
  11 def bottle(n):
  12     if n == 0: return "no more bottles of beer"
  13     if n == 1: return "one bottle of beer"
  14     return str(n) + " bottles of beer"
  15
  16 for i in range(n, 0, -1):
  17     print bottle(i), "on the wall,"
  18     print bottle(i) + "."
  19     print "Take one down, pass it around,"
  20     print bottle(i-1), "on the wall."