#19920: More robust ring detection in matrix constructor
-------------------------------------+-------------------------------------
Reporter: ncohen | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-7.1
Component: linear algebra | Resolution:
Keywords: | Merged in:
Authors: Vincent Delecroix | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/vdelecroix/19220 | 98f9c1fe0b621a2ef90d0459656f5d4158f885f6
Dependencies: | Stopgaps:
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Changes (by {'newvalue': u'Vincent Delecroix', 'oldvalue': ''}):
* status: new => needs_review
* author: => Vincent Delecroix
* branch: => u/vdelecroix/19220
* commit: => 98f9c1fe0b621a2ef90d0459656f5d4158f885f6
Old description:
> This is a pretty simple bug report:
>
> {{{
> sage: matrix.ones(10).apply_map(lambda x:int(1))
> TypeError: base_ring (=<type 'int'>) must be a ring
> }}}
>
> It looks a bit 'forced' when you specify 'int' directly, but it works
> without it from the inside of a .py file.
New description:
This is a pretty simple bug report:
{{{
sage: matrix.ones(10).apply_map(lambda x:int(1))
TypeError: base_ring (=<type 'int'>) must be a ring
}}}
It looks a bit 'forced' when you specify 'int' directly, but it works
without it from the inside of a .py file.
We also fix
{{{
sage: import numpy
sage: matrix([[numpy.int8(1)]])
Traceback (most recent call last):
...
TypeError: unable to find a common ring for all elements
}}}
--
Comment:
New commits:
||[http://git.sagemath.org/sage.git/commit/?id=98f9c1fe0b621a2ef90d0459656f5d4158f885f6
98f9c1f]||{{{Trac 19220: more robust ring detection in matrices}}}||
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Ticket URL: <http://trac.sagemath.org/ticket/19920#comment:3>
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