SciPy is a scientific library for Python and is open source. We are going to use this library in the upcoming chapters. This library depends on the NumPy library, which provides an efficient n-dimensional array manipulation function. We are going to learn more about these libraries in the upcoming chapters. My intention here is just to inform you to get prepared to face other libraries apart from NumPy and pandas. If you want to get started early, check for scipy.stats from the SciPy library.