Run Ngspice in batch mode or with Python

Question

For circuit simulations I have mostly been using LTpice, where the netlist is generated automatically with a Python script I wrote and run using the following Python command: subprocess.run([ltspice_executable, -b, my_netlist])(1).

The voltages of my circuit are extracted by reading the generated raw files using the Python package: ltspice.

Now I have to move to Ngspice (@Related question with no answers here). My LTspice netlist only contains resistors inductors and capacitors so it could basically run in Ngspice with no problem whatsoever.

I would like to know if there is a similar Python command to the one I use in LTspice (expression(1)) to run Ngspice from my Python script and extract my voltages?

• a concerned citizen: According to the manual (16.8) it says -b is batch mode. I haven't used it, but you're welcome to try.
• Wallflower: @aconcernedcitizen will check it out. Thank you!
• Wallflower: @aconcernedcitizen It worked very well thank you again !!

Answer 1

Following @aconcernedcitizen's comment, the command to be used in order to run Ngspice in batch mode from python is the following: subprocess.run([path_to_ngspice_executable,'-r','rawfile.raw','-b','-i',my_netlist]).

Where rawfile.raw here will contain all the voltages distributions and is supposed to be read to extract the voltage distribution. For LTspice the ltspice python package see here, whereas for Ngspice raw files I am still trying to figure it out...