kdtree
nanoflann wrapper for python and maybe fortran
TRCC — T-Regulated Cytokine Clustering: density-peak clustering with path-density mutual-reachability merging
This package will take a latitude and longitude coordinate which will return the country, city name, alternate name(s), population, timezone, and exact coordinates of the city.
Python implementation of a K-D Tree as pseudo-balanced Tree
A simple and fast KD-tree for points in Python for kNN or nearest points. (damm short at just ~60 lines) No libraries needed.