#8406: problem with duck typing in c_graph
----------------------------+-----------------------------------------------
Reporter: ylchapuy | Owner: rlm
Type: defect | Status: new
Priority: major | Milestone:
Component: graph theory | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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two examples:
{{{
sage: G=Graph()
sage: R.<a>=GF(3^3)
sage: G.add_vertex(a^2)
sage: G.vertices()
[9]
}}}
This should be `[a]`, but `int(a)=9`
{{{
sage: R.<x>=GF(3^3,'a')[]
sage: G.add_vertex(x)
ValueError
}}}
This should work as `x` is hashable.
`int(x)` return a `ValueError`, but the code only tests for `TypeError`.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8406>
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