cpython/Tools/demo/beer.py at master · python-emscripten/cpython · GitHub

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#!/usr/bin/env python3

"""

A Python version of the classic "bottles of beer on the wall" programming

example.

By Guido van Rossum, demystified after a version by Fredrik Lundh.

"""

import sys

n = 100

if sys.argv[1:]:

n = int(sys.argv[1])

def bottle(n):

if n == 0: return "no more bottles of beer"

if n == 1: return "one bottle of beer"

return str(n) + " bottles of beer"

for i in range(n, 0, -1):

print(bottle(i), "on the wall,")

print(bottle(i) + ".")

print("Take one down, pass it around,")

print(bottle(i-1), "on the wall.")