On 11/6/2019 3:09 PM, R.Wieser wrote: > Dennis, >> Depends upon the OS... > > My apologies, its Linux (as on a Raspberry Pi). I don't know how much Linux is customized for RP, but last I knew, Python on RP is MicroPython, not CPython. So I expect OS-related functions to not necessarily match Linux on a desktop. -- Terry Jan Reedy