General Relativity in Python

 EinsteinPy is an open source pure Python package
 dedicated to problems arising in General Relativity
 and relativistic physics, such as goedesics plotting
 for schwarzschild space-time model, calculation of
 schwarzschild radius for any mass given, symbolic
 calculation of various functions related to GR such
 as christoffel symbols. Features like visualization
 of geodesics of curved black holes and 3D visualizations
 are some of the features which are planned.
 It is released under the MIT license.