COSMolKit Python ================ COSMolKit is a Python package for molecule graph workflows, SMILES/SDF IO, coordinate access, molecule depiction, and high-throughput batch processing. Important API model: COSMolKit uses copy-on-write (COW) molecule values. Transform methods return new ``Molecule`` objects and do not mutate the original object in place. This differs from common RDKit Python workflows where code often updates an existing molecule or ``RWMol`` directly. .. toctree:: :maxdepth: 2 :caption: User Guide installation quickstart molecule batch io api