mirror of https://github.com/python/cpython
Show use of range() step argument nicely.
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#! /usr/bin/env python
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# By GvR, demystified after a version by Fredrik Lundh.
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import sys
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n = 100
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if sys.argv[1:]: n = int(sys.argv[1])
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if sys.argv[1:]:
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n = int(sys.argv[1])
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def bottle(n):
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if n == 0: return "no more bottles of beer"
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if n == 1: return "one bottle of beer"
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return str(n) + " bottles of beer"
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for i in range(n):
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print bottle(n-i), "on the wall,"
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print bottle(n-i) + "."
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for i in range(n, 0, -1):
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print bottle(i), "on the wall,"
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print bottle(i) + "."
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print "Take one down, pass it around,"
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print bottle(n-i-1), "on the wall."
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print bottle(i-1), "on the wall."
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