since pyilper dont have an ARM version in anaconda3 for raspbian, lets try following
a) install qemu on the raspberry pi4
b1) make win98 or win2000 running on it
c1) install ILPER in the win environment
or
b2) install debian 32 bits in qemu
c2) install pyILPER on it
I will post the progress here
Update Feb6 2022:
I tried b2) by installing Antix 32bits in a qemu which was started in the raspberry...