I don't understand what's so misterious about this. It's pretty obvious from the message that the problem is that program tried to run illegal instruction. Look

I don't understand what's so misterious about this. It's pretty obvious from the message that the problem is that program tried to run illegal instruction. Looking at opcode the instruction is part of AVX extensions. I'm surprised we still encounter CPUs that don't have those these days. I'm pretty sure every CPU these days has AVX extensions (fact check this :) ). By the way, title is somewhat click beauty. This is not a python crash. It's one of the shared libraries that were loaded by matplot lib that trigged the problem.