0
0
mirror of https://github.com/python/cpython.git synced 2024-11-30 18:51:15 +01:00
cpython/Tools/demo/beer.py

26 lines
566 B
Python
Executable File

#!/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.")