Requirements should be installed manually. For example, pip install git+https://github.com/nexB/python-inspector
should be required for generating dependency graph for python.
$ ./cli/build/install/ort/bin/ort requirements
After installation, analyze will generate dependency graph for python, node, and etc.
$ ./cli/build/install/ort/bin/ort --info analyze -f JSON -i ../test-oss-analyzer -o ../analyzer