Parallelizing your code with Python just got a whole lot easier. With a multitude of libraries out there, you’re spoiled for choice when it comes to getting the most out of your CPU’s multithreading and multiprocessing capabilities. Here are some of the top contenders: Dask: A flexible parallel computing library that seamlessly scales up existing serial code by distributing tasks across multiple cores or even machines. Its modular architecture makes it easy to integrate with other libraries, and its intuitive API means you can get started quickly. Joblib: A set of simple but powerful tools for executing batches of functions in parallel using Python’s global interpreter lock (GIL). It’s lightweight, flexible, and easy to use, making it a great choice for simple parallel processing tasks. Pathos: A library that provides high-level interfaces for multiprocessing, parallelism, and concurrency. With its focus on simplicity and ease of use, Pathos is perfect for those who want to get started with parallel programming quickly without having to worry about the nitty-gritty details. Parallel Python: An open-source implementation of the Parallel Virtual Machine (PVM) standard, which enables distributed computing across a network of machines. With its support for both shared-memory and message-passing models, you can tackle complex tasks that require intense computational power. Ray: A high-performance distributed computing framework that allows you to easily scale your Python applications by distributing compute-intensive tasks across a cluster of machines. Its flexible architecture makes it suitable for both CPU-bound and GPU-bound computations. NumPy + multiprocessing: For those who are already familiar with NumPy, the standard library’s multiprocessing module is an excellent choice. It provides a straightforward way to parallelize CPU-bound operations using multiple cores or even machines. So, which one will you choose?