Most Excel users (not the power users, just the 1.1 billion everyday ones, including many of the enterprise ones) don't know how to program in any language. You're coming at this with a HN mindset.
"Python vs Lua" is not even on their radar. And even if it was, their criteria would be dominated by platform lockin and compatibility with other licenses (e.g. commercial SQL, Tableau, MSFT, etc.). Not by "which open-source language?"
IMO you're the one coming in with an HN mindset. Python has massive mindshare even among people who have never programmed. It is the numeric computing language du jour. In any given financial company there are definitely already python users. Lua, a language primarily known for plugin scripting, with no numeric computing libraries, that has zero mindshare among non career programmers, is not even in the conversation.
Nobody here has made a case for Lua in Excel. I wrote "Python vs Lua" is not even on the radar of most Excel users, not even the subset that are programmers.
(Why are people here aggressively misreading everything I type, today?)
> Python... is the numeric computing language du jour. In any given financial company there are definitely already python users.
The original post didn't say "financial Excel users". Not all Excel users are financial; most aren't. I've worked with legal informatics users, e-commerce users, bioinformatic users, among others. Those sectors never use Excel for numeric computing, IME (drawing the occasional chart isn't numeric computing). They are more familiar with SQL, SQL macros, SQL query generators, importing/exporting to/from SaaS, etc. Like I said.
