What’s new

einsteinpy 0.2.0 - 2019-07-14

This release brings a lot of new features for the EinsteinPy Users.

A better API, intuitive structure and easy coordinates handling! This major release comes before Python in Astronomy 2019 workshop and brings a lots of cool stuff.

Part of this release is sponsored by ESA/ESTEC – Adv. Concepts & Studies Office (European Space Agency), through Summer of Code in Space (SOCIS) 2019 program.

This is a short-term supported version and will be supported only until December 2019. For any feature request, write a mail to developers@einsteinpy.org describing what you need.


  • Kerr Metric

  • Kerr-Newman Metric

  • Coordinates Module with Boyer Lindquist Coordinates and transformation

  • Bodies Module

  • Defining Geodesics with ease!

  • Animated plots

  • Intuitive API for plotting

  • Schwarzschild Hypersurface Embedding

  • Interactive Plotting

  • Environment-aware plotting and exceptional support for iPython Notebooks!

  • Support for Tensor Algebra in General Relativity

  • Symbolic Manipulation of Metric Tensor, Riemann Tensor and Ricci Tensor

  • Support for Index Raising and Lowering in Tensors

  • Numerical Calculation and Symbolic Manupulation of Christoffel Symbols

  • Calculations of Event Horizon and Ergosphere of Kerr Black holes!


This is the complete list of the people that contributed to this release, with a + sign indicating first contribution.

  • Shreyas Bapat

  • Ritwik Saha

  • Bhavya Bhatt

  • Sofía Ortín Vela+

  • Raphael Reyna+

  • Prithvi Manoj Krishna+

  • Manvi Gupta+

  • Divya Gupta+

  • Yash Sharma+

  • Shilpi Jain+

  • Rishi Sharma+

  • Varun Singh+

  • Alpesh Jamgade+

  • Saurabh Bansal+

  • Tanmay Rustagi+

  • Abhijeet Manhas+

  • Ankit Khandelwal+

  • Tushar Tyagi+

  • Hrishikesh Sarode

  • Naman Tayal+

  • Ratin Kumar+

  • Govind Dixit+

  • Jialin Ma+

Bugs Fixed

  • Issue #115: Coordinate Conversion had naming issues that made them confusing!

  • Issue #185: isort had conflicts with Black

  • Issue #210: Same notebook had two different listings in Example Gallery

  • Issue #264: Removing all relative imports

  • Issue #265: New modules were lacking API Docs

  • Issue #266: The logo on documentation was not rendering

  • Issue #267: Docs were not present for Ricci Tensor and Vacuum Metrics

  • Issue #277: Coordinate Conversion in plotting module was handled incorrectly

Backwards incompatible changes

  • The old StaticGeodesicPlotter has been renamed to einsteinpy.plotting.senile.StaticGeodesicPlotter, please adjust your imports accordingly

  • The old ScatterGeodesicPlotter has been renamed to einsteinpy.plotting.senile.ScatterGeodesicPlotter, please adjust your imports accordingly.

  • einsteinpy.metric.Schwarzschild, einsteinpy.metric.Kerr, and einsteinpy.metric.KerrNewman now have different signatures for class methods, and they now explicitly support einsteinpy.coordinates coordinate objects. Check out the notebooks and their respective documentation.

  • The old coordinates conversion in einsteinpy.utils has been deprecated.

  • The old symbolic module in einsteinpy.utils has been moved to einsteinpy.symbolic.

einsteinpy 0.1.0 - 2019-03-08

This is a major first release for world’s first actively maintained python library for General Relativity and Numerical methods. This major release just comes before the Annual AstroMeet of IIT Mandi, AstraX. This will be a short term support version and will be supported only until late 2019.


  • Schwarzschild Geometry Analysis and trajectory calculation

  • Symbolic Calculation of various tensors in GR

  • Christoffel Symbols

  • Riemann Curvature Tensor

  • Static Geodesic Plotting

  • Velocity of Coordinate time w.r.t proper time

  • Easy Calculation of Schwarzschild Radius

  • Coordinate conversion with unit handling

  • Spherical/Cartesian Coordinates

  • Boyer-Lindquist/Cartesian Coordinates


This is the complete list of the people that contributed to this release, with a + sign indicating first contribution.

  • Shreyas Bapat+

  • Ritwik Saha+

  • Bhavya Bhatt+

  • Priyanshu Khandelwal+

  • Gaurav Kumar+

  • Hrishikesh Sarode+

  • Sashank Mishra+