#14772: Remove CombinatorialClass from Permutations
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Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.11
Component: combinatorics | Resolution:
Keywords: days49 | Merged in:
Authors: Travis Scrimshaw | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Dependencies: #8386 #14519 #14808
Stopgaps: |
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Comment (by darij):
I've started the review -- but I'm stuck at {{{PermutationOptions}}} now.
You have these doctests:
{{{
EXAMPLES::
sage: p213 = Permutation([2,1,3])
sage: p312 = Permutation([3,1,2])
sage: PermutationOptions(mult='l2r', display='list')
sage: po = PermutationOptions()
sage: po['display']
'list'
sage: p213
[2, 1, 3]
sage: PermutationOptions(display='cycle')
sage: p213
(1,2)
sage: PermutationOptions(display='singleton')
sage: p213
(1,2)(3)
sage: PermutationOptions(display='list')
}}}
But when I try to run them ingame, they don't behave that nicely:
{{{
sage: sage: p213 = Permutation([2,1,3])
sage: sage: p312 = Permutation([3,1,2])
sage: sage: PermutationOptions(mult='l2r', display='list')
sage: sage: po = PermutationOptions()
Current options for permutations
- display: list
- generator_name: s
- latex: list
- mult: l2r
sage: sage: po['display']
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
<ipython-input-49-b0a2d723e60c> in <module>()
----> 1 po['display']
TypeError: 'NoneType' object has no attribute '__getitem__'
}}}
I have a feeling that they are not recognized as doctests due to the weird
place they're in... And I don't know what to do about this.
--
Ticket URL: <http://trac.sagemath.org/ticket/14772#comment:22>
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