|   | 1 |  initial version  | 
You should be using
sage: from sage.repl.rich_output import get_display_manager
sage: dm = get_display_manager()
sage: dm.preferences.graphics='disable'
The EMBEDDED_MODE is probably a left over of older Sage.
|   | 2 |  No.2 Revision  | 
You should be using
sage: from sage.repl.rich_output import get_display_manager
sage: dm = get_display_manager()
sage: dm.preferences.graphics='disable'
The other possibilities for graphics are 'raster' (for png) and 'vector' (for pdf).
The EMBEDDED_MODE is probably a left over of older Sage.Sage versions.
|   | 3 |  No.3 Revision  | 
You should be using
sage: from sage.repl.rich_output import get_display_manager
sage: dm = get_display_manager()
sage: dm.preferences.graphics='disable'
The other possibilities for graphics are 'raster' 'raster' (for png) and 'vector' 'vector' (for pdf).
The EMBEDDED_MODE is probably a left over of older Sage versions.
EDIT: you probably want to create a backend_cantor.py modeled on the various backend_XXX.py in $SAGE_ROOT/src/sage/repl/rich_output/ (see e.g. on github).
 Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
 
                
                Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.