PyGarmin is a set of Python classes which implement the protocol used by Garmin GPS receivers to talk to each other and to other machines.
PyGarmin is based on the official protocol specification. The project was started by Quentin Stafford-Fraser but several others have helped to make it what it is today.
PyGarmin is not a complete application. Some simple applications are now included, one of which is called pygarmin, but it is primarily just a toolkit to help you write applications. This is a project which is in development. No support. No guarantees. And so forth.
PyGarmin has been used to transfer information to and from several different Garmin receivers, under Mac OS X and Linux, though there is some Windows support now.
If you use PyGarmin, it will probably be much quicker than writing your own software from scratch.
Find us on Google+
Universal Binary 
