slackbuilds_ponce/python/python3-pandas

The Python Data Analysis Library (Pandas) is an open source,
BSD-licensed library providing high-performance, easy-to-use data
structures and data analysis tools for the Python programming
language.

python3-pandas 1.4.2 is the last possible version for Slackware 15.0.
Newer versions require a newer Cython (as a build dependency).