Over on the other blog, posted a 0-1 Knapsack approximation solution in Python for Apache Spark. The source code for this was tested in a local installation on Ubuntu 16.04 for Apache Spark pre-built for Hadoop 2.7 and later.
The original source code contains setup code for the Spark / Python environment, as well as a Scala solution. I do not think it will run in Databricks without some modification, although it’s possible to copy the knapsack.py file contents into the same Spark Python notebook entry as the test code to try it out.
Original 0-1 approximation source code is over on Github.
Darrell Ulm 