From 3d072c95873798bcaa628705d4c95390aaa317c4 Mon Sep 17 00:00:00 2001 From: Georg Brandl Date: Sat, 10 Oct 2009 21:47:31 +0000 Subject: Show use of range() step argument nicely. --- Demo/scripts/beer.py | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/Demo/scripts/beer.py b/Demo/scripts/beer.py index 1b9ac8b..e331cc9 100644 --- a/Demo/scripts/beer.py +++ b/Demo/scripts/beer.py @@ -1,14 +1,20 @@ #! /usr/bin/env python + # By GvR, demystified after a version by Fredrik Lundh. + import sys + n = 100 -if sys.argv[1:]: n = int(sys.argv[1]) +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): - print bottle(n-i), "on the wall," - print bottle(n-i) + "." + +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(n-i-1), "on the wall." + print bottle(i-1), "on the wall." -- cgit v0.12