Update: Updating cffi to version 1.5 solves the issue. This bug can be closed.
Maybe I should add: pyspice uses ciffy to load the shared ngspice library libngspice.so. I'd like to use pyspice for the SKY130 process. This requires the use of a recent version of ngspice.
Using libngspice.so in python with cffi fails
Canon Pixma Pro 9500 Output compressed