Notes on Install

Installing pyscard from source is difficult, this should work
but some of these libraries may not be necessary

git clone https://github.com/LudovicRousseau/pyscard.git
sudo python3 setup.py install

git clone https://github.com/LudovicRousseau/PCSC.git

Although some of these libraries are marked optional
meson won't build if they're absent

apt install swig
apt install flex
apt install meson
apt install polkit-dev
apt install libudev-dev
apt install libusb-dev
apt install libpolkit-gobject-1-dev
meson setup builddir
cd builddir
sudo python3 setup.py install

this daemon needs to be running

apt install pcscd
systemctl status pcscd

PySimpleGui is now commercial only this is a free open fork

pip install FreeSimpleGUI