So if IDV tells me my data structure looks like this: (Time -> ((Range, Azimuth) -> Reflectivity)) How do I access this in Jython? (the tutorials online have been lacking in how to access such an array) Too many pages with the wrong info. Frustrating. Thanks, -Ben -- Ben Kamen - O.D.T., S.P. ============================================================================= Email: bkamen AT benjammin DOT net Web: http://www.benjammin.net As seen somewhere on the net: My other computer is your Windows Server.