#9944: categories for polynomial rings
--------------------------------------------+-------------------------------
Reporter: robertwb | Owner: nthiery
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.7.1
Component: categories | Resolution:
Keywords: | Work_issues:
Upstream: N/A | Reviewer: Nicolas M.
Thiéry, Mike Hansen, Martin Raum
Author: Robert Bradshaw, Simon King | Merged:
Dependencies: sage-4.7 + #11139 |
--------------------------------------------+-------------------------------
Comment(by SimonKing):
Replying to [comment:64 mraum]:
> So far I read till sage/rings/polynomial/laurent_polynomial_ring.py in
the order that the patch is printed. Only one issue here:
> in free_module_homspace.py l.128 (new counting) a doctest is missing
that checks that passing a function works fine.
It '''is''' tested. The patch has added the following test:
{{{
sage: V = span([[1/2,1,1],[3/2,2,1],[0,0,1]],ZZ)
sage: V.Hom(V).zero()
Free module morphism defined by the matrix
[0 0 0]
[0 0 0]
[0 0 0]
Domain: Free module of degree 3 and rank 3 over Integer Ring
Echelon ...
Codomain: Free module of degree 3 and rank 3 over Integer Ring
Echelon ...
}}}
In unpatched sage-4.7.alpha5, you would get
{{{
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (396, 0))
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (6924, 0))
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
...
TypeError: 'function' object is not iterable
}}}
> Simon, if you rebase this, could you also upload a diff file for the new
and old patch? That would make my and possibly the life of all others
easier.
OK.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9944#comment:65>
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