How is this better than a few simple lines of multiprocessing module exactly?
Yes I'm being negative. People need to stop already adding yet more parallel libraries to Python. Contribute to existing 15+ options or stay away. Unless you're GvR (and even that's debatable) you're not helping the ecosystem - you're confusing it even further.
Python is not a good first choice for multicore anyway because it is at least 10x slower than compiled languages so the best you are hoping for is 8-core parallelism to get you back to the performance of single core C (or whatever compiled language you want). If you're serious about performance there is no other way than to abandon Python. Only Numpy (and Pandas) are keeping it competitive, and in a number of fields, it's looking more and more R-like as a prototyping-only language, with production in anything-but.