#13119: ._apply_module_morphism() in combinat/free_module.py doesn't handle zero
element properly
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Reporter: zabrocki | Owner: sage-combinat
Type: defect | Status: new
Priority: minor | Milestone: sage-5.6
Component: combinatorics | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Mike Zabrocki | Merged in:
Dependencies: | Stopgaps:
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Comment (by zabrocki):
I added a patch to this ticket. Discussion is at
https://groups.google.com/d/topic/sage-combinat-
devel/yPjfNINtVbk/discussion
I changed one thing in addition since I had originally reported this bug.
That is, if the codomain is not known and it looks for the parent of an
element of the image to determine the codomain then raise a value error if
the element returned by the function doesn't have a parent.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13119#comment:1>
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