Parallel dbscan is a Python packaged, parallel version of DBSCAN based on the code by the Northwestern university.
The original can be found here: http://cucis.ece.northwestern.edu/projects/Clustering/download_code_dbscan.html
The original code can be found in parallel_dbscan/dbscan-v1.0.0 including all the contents as provided by the original packages, including copyright notices.