Rtree is a ctypes Python wrapper of libspatialindex that provides a
number of advanced spatial indexing features for the spatially curious
Python user. These features include:

* Nearest neighbor search
* Intersection search
* Multi-dimensional indexes
* Clustered indexes (store Python pickles directly with index entries)
* Bulk loading
* Deletion
* Disk serialization
* Custom storage implementation (to implement spatial indexing in ZODB,
  for example)

1. build dependencies:
   1. python3-module-sphinx
   2. spatialindex-devel
   3. python3-devel
   4. python3-module-setuptools
   5. python3-module-setuptools
   6. python-tools-2to3
   7. rpm-build-python3
   8. rpm-macros-sphinx3