NumPy is the fundamental package for scientific computing with Python. It contains among other things:
(1). a powerful N-dimensional array object.
(2). sophisticated (broadcasting) functions.
(3). tools for integrating C/C++ and Fortran code.
(4). useful linear algebra, Fourier transform, and random number capabilities.
Besides its obvious scientific uses, NumPy can also be used as an efficient multi-dimensional container of generic data. Arbitrary data-types can be defined. This allows NumPy to seamlessly and speedily integrate with a wide variety of databases.
NumPy is licensed under the BSD license, enabling reuse with few restrictions.