Hello,
I think this is normal. Perhaps you meant the following (note the *
which expands the single argument into its components):
sage: for x in itertools.chain(*itertools.imap(Permutations,range(4))):
print x
[]
[1]
[1, 2]
[2, 1]
[1, 2, 3]
[1, 3, 2]
[2, 1, 3]
[2, 3, 1]
[3, 1, 2]
[3, 2, 1]
Best,
Jason
William Laffin wrote:
> Hello helpful sage-support list!
>
> Is this the following normal behavior?
>
> sage: import itertools
> sage: for x in itertools.imap(Permutations,range(4)):
> .....: for y in x:
> .....: print y
> .....:
> []
> [1]
> [1, 2]
> [2, 1]
> [1, 2, 3]
> [1, 3, 2]
> [2, 1, 3]
> [2, 3, 1]
> [3, 1, 2]
> [3, 2, 1]
> sage: for x in itertools.chain(itertools.imap(Permutations,range(4))):
> print x
> .....:
> Standard permutations of 0
> Standard permutations of 1
> Standard permutations of 2
> Standard permutations of 3
> sage:
>
> thanks,
> William Laffin
> Michigan Tech
>
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