This is the code behind some work in Network Science (PHYS 5116 @ Northeasten University) in the analysis of dependency graphs for programming language packages, in particular taking the Node.JS / NPM ecosystem as a model.
For the sake of expediency, I have checked in an output
file of the first 1000 nodes (packages) in the graph.
If you want to re-build the dependency list, or
build a more complete copy of it, you will likely
need Python 3.5 or greater. Then you can just do a
pip install and it should work out.
This work depends on, and I am very greatful to, the service provided by npms.io in indexing Node packages and in making dependencies visible.