Karl & Ivan --

          Ahh.  Thanks for tracking this down.  
          I tried switching to sage and executing "gap._eval_using_file_cutoff 
= 1000", and this seems to have solved the
immediate problem.  However, I can't have my students do this every 
session, so using the init.sage file would be better.
However, I tried putting 

gap._eval_using_file_cutoff = 1000

and then

self._eval_using_file_cutoff = None

in a file named "init.sage"  in the .sage subdirectory of my home 
directory.  I quit sage and the browser, and started up
again.  This did not work.   Not sure if I've put these in the wrong place 
or am missing part of the syntax.

I also tried executing 

gap._eval(...., allow_use_file=False)

in the notebook, both under sage (which I thought would be correct) and 
under gap, and both reported back syntax
errors and did not work.

Assuming I can get the commands in the init.sage file in .sage to work, we 
have the basis of a solution, but I'm not
entirely sure how to get these init.sage files into the home directories of 
each student.  When sage starts up, how
does it go about creating its initial .sage directory?    If this is to be 
our solution, we will have to do it right away
-- before students first lab visit.  In order to preserve work from session 
to session, I'm having students save and
restore their .sage directory between sessions, so whatever get's put into 
.sage for initialization the first day will
be restored every session.  (Perhaps you can suggest a better way to 
preserve data between sessions, but I
could not find another way.)

Thanks,

-- Walter

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