GPSd

gpsd is a service daemon that monitors a GPS attached to a host computer through a serial or USB port, making its data on the location/course/velocity of the sensor available to be queried on TCP port 2947 of the host computer. With gpsd, multiple GPS client applications (such as navigational and wardriving software) can share access to a GPS without contention or loss of data. Also, gpsd responds to queries with a format that is substantially easier to parse than the NMEA 0183 emitted by most GPSes. The gpsd distribution includes a linkable C service library and a Python module that developers of gpsd-aware applications can use to encapsulate all communication with gpsd. GPSd home is here.