Contents:
libpysal.cg.
geointerpolate
Finds a point on a sphere along the great circle distance between two points on a sphere also known as a way point in great circle navigation
e.g., t=0.5 would find the mid-point
for lon,lat (default) = True, for lat,lon = False
depending on setting of lonx; in other words, the same order is used as for the input