Problem:
When you try to run your PySpice script, you see an error log such as
PySpice.Spice.NgSpice.Shared.NgSpiceShared._send_char - WARNING - spinit was not found PySpice.Spice.NgSpice.Shared.NgSpiceShared._send_char - ERROR - Note: can't find init file. PySpice.Spice.NgSpice.Shared.NgSpiceShared._init_ngspice - WARNING - Unsupported Ngspice version 36
Solution:
Your PySpice is too new for the ngspice
version installed on your system.
Typically, it’s easiest to install a slightly older PySpice version:
sudo pip3 install -U "pyspice<1.5"
(but you can also update your ngspice
).