This is a SageMath package for studying flexible and rigid labelings of graphs. It implements the concepts described in the papers Graphs with Flexible Labelings (doi:10.1007/s00454-018-0026-9) and Graphs with Flexible Labelings allowing Injective Realizations (doi:10.1016/j.disc.2019.111713) by Georg Grasegger, Jan Legerský and Josef Schicho, and in the doctoral thesis Flexible and Rigid Labelings of Graphs by Jan Legerský (available here). The latest version of the code can be found in the GitHub repository: https://github.com/Legersky/flexrilog

This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 675789. The project was partially supported by the Austrian Science Fund (FWF): P 31888.