#8800: Doctest coverage of categories
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Reporter: SimonKing | Owner: Simon King
Type: defect | Status: new
Priority: major | Milestone: sage-4.4.2
Component: categories | Keywords: categories doctests
Author: Simon King | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by SimonKing):
Replying to [comment:20 SimonKing]:
> So, probably it is solution number 1, which at least requires to
implement an ``is_commutative`` method, resp. to first test for the
presence of such method in ``FreeModule``. I think I'll go for it.
Oops, this is nonsense. The ``FreeModule`` constructor expects a
commutative ring. So, solution 1. is no solution. I will change the
constructor so that it is first tested whether the ``is_commutative``
method exists, so that the error message is clearer, but apart from that,
it is OK that the pushout does not exist.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8800#comment:21>
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