#4581: Permutation constructor fails with PermutationGroupElement
---------------------------+------------------------------------------------
Reporter: saliola | Owner: mhansen
Type: defect | Status: new
Priority: major | Milestone: sage-3.2.1
Component: combinatorics | Keywords:
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Since PermutationGroupElement accepts Permutations:
{{{
sage: PermutationGroupElement(Permutation([2,1,3]))
(1,2)
}}}
it would be good if the other direction worked as well:
{{{
sage: g = PermutationGroupElement([2,1,3])
sage: g
(1,2)
sage: Permutation(g)
...
ValueError: l must be a list
}}}
The following works:
{{{
sage: Permutation(g.list())
[2, 1, 3]
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4581>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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