Python generators are powerful tools for creating memory-efficient iterators that generate values on-the-fly using yield. They excel at handling large datasets or infinite sequences, like streaming data. This beginner’s guide explains their workings, benefits like lazy evaluation, and use cases such as processing chunks of large files.

Python’s popularity has surged with the rise of AI/machine learning, due to its extensive libraries. The language is easy to learn but has some strange behaviors. The article discusses five such peculiarities: improper use of ‘is’ for comparisons, initializing 2D arrays, mutable default arguments, duck typing issues, and the Global Interpreter Lock (GIL).