enumerate() simplifies loops and makes code cleaner and less error-prone. No more messing with manual counters!The walrus operator in Python 3.8 allows assigning values to variables as part of an expression, reducing redundant code and improving readability.List comprehensions in Python are shorter, faster, more Pythonic, and can include conditionals for increased flexibility.pytest, a modern testing framework, enhances testing experience and coverage, making it more enjoyable than the built-in unittest module.