[craigyk]

I'd vote for Lua: faster and less heavy than Python... Plus my biggest concern for Python would be how well the team can sandbox it. I know in this regard Lua also has advantages. Disclaimer: I am _way_ more proficient in Python than Lua, I just think Lua is a better choice.

[alexeldeib]

I've recently been using Lua, and I love it. That said, I find python a far more appropriate language. Think about the use cases and the ecosystem around python.The quality, breadth, and depth of the Lua ecosystem for the finance/education/data users of excel will lead users to favor Python.

The main thing that might be nice is tables as a data structure for spreadsheets, but somehow I picture pain.

[jimnotgym]

Does Lua have anything like Numpy or Scikit-learn?

[petre]

Yes, it has Torch.

[carlmr]

Pandas?

[petre]

https://github.com/AlexMili/torch-dataframe

[dsnuh]

I was thinking the same. Would Excel be able to embed it like so many other projects do?