How to get the ed command in the ipython shell to preparse its sourcefiles?
Using the Sage version of the IPython shell, the "ed" command brings up an editor for creating a sage script which is executed automatically when the editor is closed. Unfortunately, no preparsing takes place. For example, an expression like 2^3 or (2..3) is not interpreted in the expected way. Is it possible to configure the "ed" command so that preparsing takes place automatically?