There are indeed exceptions when running a program. Exceptions, as a construct, are baked in at the hardware level. When a program page faults, or tries to divi

There are indeed exceptions when running a program. Exceptions, as a construct, are baked in at the hardware level. When a program page faults, or tries to divide by zero, or runs an invalid opcode, the CPU will jump to an exception handler in much the same way as the higher-level constructs in Python and elsewhere.