Lines 1483 and 1484 in polyhedra.py are
projection.render_vertices_3d(width=3, color='green', **kwds) +
\
projection.render_wireframe_3d(width=3, color='green', **kwds)
+ \
Setting the color and width here prevents the user from doing this at
the command line (see example below). I would suggest replacing the
lines with
projection.render_vertices_3d(**kwds) +\
projection.render_wireframe_3d(**kwds) + \
If there is a good reason to want the default to be width=3 and
color='green', then kwds should be tested first before setting these
defaults, I guess. I would be happy to submit a patch, but I am not
sure what is intended.
--Dave
sage: p = polytopes.n_cube(3)
sage: p.show()
sage: p.show(color='red')
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
/usr/local/sage-4.7/devel/<ipython console> in <module>()
/usr/local/sage-4.7/local/lib/python2.6/site-packages/sage/geometry/
polyhedra.py in plot(self, **kwds)
1998 render =
Polyhedron._render_method[self.ambient_dim()]
1999 if render != None:
-> 2000 return render(self,**kwds)
2001 raise NotImplementedError('Plotting of
'+str(self.ambient_dim())+
2002 '-dimensional polyhedra not
implemented')
/usr/local/sage-4.7/local/lib/python2.6/site-packages/sage/geometry/
polyhedra.py in render_3d(projection, **kwds)
1482 return \
1483 projection.render_vertices_3d(width=3, color='green',
**kwds) +\
-> 1484 projection.render_wireframe_3d(width=3, color='green',
**kwds) + \
1485 projection.render_solid_3d(**kwds)
1486
TypeError: render_vertices_3d() got multiple values for keyword
argument 'color'
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