> What result of platform.architecture() do you expect for an universal binary?

I honestly don't know. What is the purpose of this functionality in the first place? I have never had a problem where using this function was the right solution.

To be honest I have the same problem with a number of other APIs in this module. As an example, platform.system_alias() looks interesting but has an API that won't work in general (macOS release version cannot be calculated from platform.uname() information, likewise for linux distribution information).