#7570: Make plot methods accept 'empty' input to return empty Graphics object
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   Reporter:  chapoton  |       Owner:  was      
       Type:  defect    |      Status:  new      
   Priority:  minor     |   Milestone:           
  Component:  graphics  |    Keywords:  list_plot
Work_issues:            |      Author:           
   Upstream:  N/A       |    Reviewer:           
     Merged:            |  
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Comment(by kcrisman):

 Incidentally, this is also true of things like point(), where an empty
 list of points yields an error (as far as I remember).  We should check
 ALL plot methods to ensure that empty input yields Graphics() or something
 like that, at least for the 2-d versions.  Changing summary appropriately.

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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7570#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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