People are looking for something better than Excel though, particularly for teams. Raw python won't work, it would be a chaos of copy pasted receipes and voodoo

People are looking for something better than Excel though, particularly for teams. Raw python won't work, it would be a chaos of copy pasted receipes and voodoo... VBA is bad enough. The spreadsheet model could be leveraged, but without free form tables and formula repetition. I'm torn about whether allowing explicit recursion or iteration is a good idea. It would have to include a visionary visual debugger.