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Randomly shuffle elements of an array

Python, 11 lines
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import random

def shuffle(ary):
    a=len(ary)
    b=a-1
    for d in range(b,0,-1):
      e=random.randint(0,d)
      if e == d:
            continue
      ary[d],ary[e]=ary[e],ary[d]
    return ary

1 comment

Dennis Benzinger 9 years, 9 months ago  # | flag

How is this different from the shuffle function in the random module?

http://www.python.org/doc/2.4/lib/module-random.html

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