Lie Ryan wrote:
On 06/18/10 20:00, bart.c wrote:
(I
don't know if Python allows circular references, but that would give
problems anyway: how would you even print out such a list?)
Python uses ellipsis to indicate recursive list:
a = [1, 2, 3]
a.append(a)
a
[1, 2, 3, [...]]
Ok, perhaps whatever logic print uses to know when to stop and show "...",
can also be used by copy handlers...
(Although I have an issue with the way that that append works. I tried it in
another, simpler language (which always does deep copies):
L:=(1,2,3)
L append:= L
print L
output: (1,2,3,(1,2,3))
which is exactly what I'd expect, and not (1,2,3,(1,2,3,(1,2,3,...))) )
--
bartc
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