This code is useful to parse the JSON formatted file. Here the concept id (Concept Unique Identifier from NLM's Unified Medical Language System [UMLS]) was required to fetch from Json file. The input JSON file was downloaded from the following link https://www.ebi.ac.uk/ols/ontologies/efo/. The python version was 3.6.4.
EFO_0000304.json is the input example file here.
The command will be = 'python Concept-id.py -infile EFO_0000304.json'