Question

after loading a module in Lua, I’d like to determine what module file this corresponds to. In python, you do this with code like:

import module_name
module_name.__file__

So in Lua if I do something like

require 'math'

what do I put next to determine where this module is located? Btw, I don’t actually need the location of math, but instead have some other third-party packages that were downloaded and want to know what copy of the build files are actually being used when I invoke Lua.

Answer 1

The package library might give you what you need.

For instance, if I have util.lua in my Lua path such that I can write:

require 'util'

I can get the path to the file like this:

print(package.searchpath('util', package.path))