HomeQuestionsWhat Is Numpy? What Is Numpy?By Ram / July 28, 2019 Discussion Room › Category: Interview Question › What Is Numpy? 0 Vote Up Vote Down Ram asked 5 years ago NumPy is a Python extension module that provides efficient operation on arrays of homogeneous data. It allows python to serve as a high-level language for manipulating numerical data, much like IDL, MATLAB, or Yorick.