[scikit-learn, often referred to as scikit.ml, is an open-source Python library that offers a wide range of machine learning algorithms and tools. It is widely used for data analysis, model training, and evaluation, supporting tasks such as classification, regression, clustering, and dimensionality reduction. Built on top of NumPy, SciPy, and matplotlib, scikit-learn emphasizes ease of use, performance, and integration into the Python data science ecosystem.]