use latest chebi version by default #13
Description
Problem
The chebi graph serves two purposes: Get the SMILES and superclasses for the ChEBI Lookup and get the transitive closure of predictions. Currently, the chebi graph is either loaded from hugging face (no version specified) or built locally (for a given version). In the latter case, we have to manually update the parameter each time we want to use a newer version.
Solution
- use latest version as default: At the moment, we put the version number into a URL which refers to an obo file (if the version exists). Other URLs point directly to the latest version: http://ftp.ebi.ac.uk/pub/databases/chebi/ontology/chebi.obo
- given that we have downloaded the latest version, find out which version it actually is