Cecil Westerhof <ce...@decebal.nl> writes:
Yes, I try to select a random element, but it has also to be removed,
because an element should not be used more as once.
Instead of using pop to do that why not something like:
def lazy_shuffle(seq):
"""
Generate the elements of the given sequence in a random order.
"""
# Delete the next line if you want to use a different version of
# randrange:
from random import randrange
# Delete the next line if SEQ is already a mutable sequence and you
# are willing to have it destroyed by this process:
seq = list(seq)
n = len(seq)
while n:
i = randrange(n)
yield seq[i]
n -= 1
if i < n:
seq[i] = seq[n]
--
Alan Bawden
--
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