On 08/07/2013 11:38 PM, Tobias Weich wrote:
Hi, durings some work on the unification of linestyle options I found the following little bug:| var('y') plot_vector_field((sin(x),cos(y)),(x,-3,3),(y,-3,3),linestyle='dotted') | crashes with a "maximum recursion depth" error|. One would however expect that it prints out a warning, that the linestyle option is ignored, togehter with a lis of the allowed options. The reason| for this problem is simple: .options() checks whether there are unknown options and if this is the case prints a warning. While printing this it calls ._repr_. Unfortunately in .plot_field.py the function ._repr_() calls options again which reates the infinite loop: | def_repr_(self): """ String representation of PlotField graphics primitive. EXAMPLES:: sage: x,y = var('x,y') sage: P=plot_vector_field((sin(x), cos(y)), (x,-3,3), (y,-3,3)) sage: P[0] PlotField defined by a 20 x 20 vector grid """ return"PlotField defined by a %s x %s vector grid"%(self.options()['plot_points'],self.options()['plot_points']) | I would propose openig a ticket and uploading a patch which replaces | self.options() | by | self._options | However being completely unexperienced with fixing bugs in sage I wanted to mail it to the list first and ask whether some more experienced developpers see some problems, better solutions or other functions that could be affacted. Thanks for your feed-back Tobi
Did you open a ticket about this bug? If so, can you mention the ticket here? Thanks!
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