I'm pretty good at making solid geometry models, in .obj format, but never got far beyond DOS batch files in programming. So your page on python looks very tough to understand and execute in adding some objects I'd like to utilize.
I checked out your obj in the program and found a curious combination of solid and scab geometries, and had to wonder if the type made a difference in the output - but then I finally found Hellew World online and if I have to do python then compile in c++ I'm doomed for sure. Time is money and I've surely none to spare to get proficient in two, No happy dance for me.
You don't need to compile in C++. The code language can be C-like at times, but it's all done in a Python compiler. If you just learn Python, you'll be fine.