The advantage of pySIm-prog is that it supports serial card readers
just as well as PC/SC readers. However, the serial readers seem to have
very little significance these days, so in new software I wouldn't
bother anymore to support them.
Why do you think serial readers are not used these days? They are coming free of charge with many programmable SIM cards and eg we always use them and don't even have a PC/SC one since we never needed one.
Please excuse typos. Written with a touchscreen keyboard.