Python or C - Mean Shift: clustering algorithm for points on a map (latitude / longitude)

Python or C - Mean Shift: clustering algorithm for points on a map
(latitude / longitude)

I need to analyse data fixed in one map, a large collection of "latitude /
longitude points" and to create groups using Mean Shift algorithm.
Why to use "Mean Shift" instead of "k-means"? With k-means algorithm we
need to provide the number of clusters to create (parameter k), while mean
shift algorithm calculate by himself the number of clusters. Does anyone
know any open source library or code to use Mean Shift on a map with
latitude/longitude points? (if is possible, Python, C o C++)