In a normal ipython notebook or repl session, I can refer to previously-run cells using the _# notation.
However, this is not possible when using cell magics such as %%perl or %%bash because these cells do not have entries in _oh. Nor can I find a way for any two languages to refer to values in the other's namespace.
Does anyone know a way to move information between cells that use different languages, other than using an external file?
I found a method that involves using multiple cell magics.
%%capture perl_out
%%perl
will create a CapturedIO object and allow str(perl_out) to be used in a python cell. A fuller example is in this gist.