Opened 3 years ago

Last modified 3 years ago

#27773 closed enhancement

py3: fix round issue with cplex — at Initial Version

Reported by: David Coudert Owned by:
Priority: major Milestone: sage-8.8
Component: numerical Keywords: py3, thursdaysbdx
Cc: Sébastien Labbé Merged in:
Authors: David Coudert Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

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When cplex is installed, the following occur

sage: g = graphs.PetersenGraph()
sage: g.vertex_connectivity()
TypeError                                 Traceback (most recent call last)
<ipython-input-4-8e3aa0688fc2> in <module>()
----> 1 g.vertex_connectivity()

/Users/dcoudert/sage3/sage/local/lib/python3.7/site-packages/sage/graphs/connectivity.pyx in sage.graphs.connectivity.vertex_connectivity (build/cythonized/sage/graphs/connectivity.c:17319)()
   1452     if value_only:
-> 1453         return Integer(round(p.solve(objective_only=True, log=verbose)))
   1455     val = Integer(round(p.solve(log=verbose)))

TypeError: type sage.rings.real_double.RealDoubleElement doesn't define __round__ method

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