#10890: wrong type for the element of PartitionsInBox(h,0)
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Reporter: mallet | Owner: somebody
Type: defect | Status: new
Priority: minor | Milestone: sage-4.7
Component: combinatorics | Keywords: partition
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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sage.combinat.partition.PartitionsInBox(h, w) is the combinatorial class
of partitions that fit in a h by w box. Therefore,
PartitionsInBox(h,w).list() is supposed to return a list of Partitions.
However, if h=0, it returns [[]] (a list containing a list) instead of
[Partition([])] (a list containing a Partition).
Example (with Sage 4.6.2 and sage-combinat):
sage: type(PartitionsInBox(0,0)[0])
<type 'list'>
while we should have:
sage: type(PartitionsInBox(0,0)[0])
<class 'sage.combinat.partition.Partition_class'>
I am going to add a patch in the Mercurial queue to fix this.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10890>
Sage <http://www.sagemath.org>
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