Passthrough kwargs support for Structure.from_file and Structure.from_str Allow the frac_tolerance to be specified for rounding coordinates in CifParser. PR #2803 from @amkrajewski add_weightbasedfunctionsIf you use pymatgen in your research, please consider citing the following: In addition, some of pymatgen's functionality is based on scientific advances / principles developed by the computational materials scientists in our team. Please refer to pymatgen's docs at http://pymatgen.org on how to cite them