Using the %%gforth cell magic, it's possible to do Forth Literate Programming with IPython.
You can do definitions:
In [1]:
%%gforth
: hello ( -- ) ." Hello, IPython notebook world with Forth." ;
: hellos ( n -- ) 0 DO cr I . hello LOOP ;
Then run your definitions:
In [2]:
%%gforth
4 hellos
Looks interesting to me.