When you have many attributes in PoolParty, it's easy to accidentally duplicate them because there's no attribute search interface, just a browsing interface split into multiple pages:

However, PoolParty lets you export your entire ontology (attributes, relations, and classes) to several different formats, including RDF-JSON (.rj):

This very simple script extracts all attribute names from a PoolParty .rj file and outputs a sorted list to a plain text file. To run this script, you need Python 3 with its json and sys libraries installed.

1. Export your PoolParty ontology to RDF-JSON format (.rj)
2. Download ppatt.py to the same folder
3. Open your terminal in the same folder, and enter the command:

$ python3 ppatt.py your_filename.rj

If successful, the attributes will be output to ppatt_out.txt and the total number of attributes extracted will print to the terminal; check this total against your PoolParty ontology stats.