"chemotools" stands as a production-oriented versatile Python library, developed to provide a unified platform for advancing chemometric model development. Integrating spectral preprocessing methodologies with the scikit-learn API and the expansive Python machine learning ecosystem, this library seeks to standardize and simplify the complex process of creating and implementing robust chemometric and machine learning models of spectral data. Find more info at https://github.com/paucablop/chemotools