#12221: Failures in gp pexpect interface with specific length of $DOT_SAGE 
using a
"screen" terminal
--------------------------+-------------------------------------------------
   Reporter:  jdemeyer    |          Owner:  was            
       Type:  defect      |         Status:  needs_review   
   Priority:  blocker     |      Milestone:  sage-5.0       
  Component:  interfaces  |       Keywords:  gp pexpect spkg
Work_issues:              |       Upstream:  N/A            
   Reviewer:              |         Author:  Jeroen Demeyer 
     Merged:              |   Dependencies:                 
--------------------------+-------------------------------------------------

Comment(by wjp):

 With some terminal capabilities, gp is using escape sequences to "redraw"
 the current line once you send a newline after exactly the right (or
 wrong) input line length. This redrawing of the current line includes the
 prompt characters, and that triggers pexpect to output the next command
 prematurely, getting things out of sync.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12221#comment:36>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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