#10229: Deleting attached files causes major problems
------------------------------+---------------------------------------------
   Reporter:  flawrence       |       Owner:  was       
       Type:  defect          |      Status:  new       
   Priority:  major           |   Milestone:  sage-4.6.1
  Component:  user interface  |    Keywords:            
     Author:                  |    Upstream:  N/A       
   Reviewer:                  |      Merged:            
Work_issues:                  |  
------------------------------+---------------------------------------------
 Create a file, attach it in a Sage session, then delete/move the file.
 Sage does not like this - and every command results in `OSError: [Errno 2]
 No such file or directory: '/path/to/attached/file.py`.  It won't even let
 you detach the file.

 At the moment before each command is executed, Sage checks to see if any
 attached files have been modified.  Presumably instead it should except
 this error, remove the file from the list of attached files, and inform
 the user.

 Discovered by rossk when reviewing #378.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10229>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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