@ADP

Thanks for the additional info... I'm still interested in any samples/examples/suggestions you might have on alternatives if/when you get a chance.  In the meantime, I spent a fair amount of time researching the "extension" (via .dll / .pyd) method and you're right - it looks like a pain in the ass :).  Having said that, it looks doable, if we convert some of the current 'lists' of data back over to NumPy multi-dim arrays.

So far, I haven't found any good info on getting 'list' formatted python data into C-readable format (I can see how to get a PyListObject, but it's entirely unclear on how to get at the multideminsional array data in it).  On the other hand, NumPy seems to have a good set of C/API wrapper functions available, but I'm still looking into the mechanics.

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