Flake8 linting of `rtree/index.py` - ignore E501 (80 char. line limit) and ignore F821 (undefined name error) for conditional naming of `xrange` and `basestring` for Py2 case
Flake8 linting of `rtree/index.py` - ignore E501 (80 char. line limit) and ignore F821 (undefined name error) for conditional naming of `xrange` and `basestring` for Py2 case

Toblerity/rtree,Toblerity/rtree