#9662: gp(string) always returns a value, even when it should not
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   Reporter:  jdemeyer    |       Owner:  was     
       Type:  defect      |      Status:  new     
   Priority:  major       |   Milestone:  sage-4.6
  Component:  interfaces  |    Keywords:          
     Author:              |    Upstream:  N/A     
   Reviewer:              |      Merged:          
Work_issues:              |  
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Comment(by jdemeyer):

 This is not easily fixed, it is due to the way how Expect assigns
 variables.  In fact, one could argue that the observed behaviour is as
 expected, because in gp, we get
 {{{
 gp> a = kill(x)
 0
 }}}
 So, assigning a nil value makes it into a zero.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9662#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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