#5538: Family does not copy it's input.
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Reporter: hivert | Owner: hivert
Type: defect | Status: new
Priority: major | Milestone: sage-3.4.1
Component: combinatorics | Keywords: Family, mutable input
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When family got a dictionary it does not copy it's input so that one can
modify it. One should use a kind of frozen dictionary.
{{{
sage: d = {1:"a", 3:"b", 4:"c"}
sage: f = Family(d)
sage: f
Finite family {1: 'a', 3: 'b', 4: 'c'}
sage: d.
sage: d[2] = 'DD'
sage: d
{1: 'a', 2: 'DD', 3: 'b', 4: 'c'}
sage: f
Finite family {1: 'a', 2: 'DD', 3: 'b', 4: 'c'}
}}}
Florent
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5538>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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