kxroberto <kxrobe...@users.sourceforge.net> added the comment: I had a similar problem creating a C-fast array.array interface for Cython. The array.pxd package here (latest zip file) http://trac.cython.org/cython_trac/ticket/314 includes a arrayarray.h file, which provides ways for efficient creation and growth from C (extend, extend_buffer, resize, resize_smart ). Its probably in one of the next Cython distributions anyway, and will be maintained. And perhaps array2 and arrayM extension subclasses (very light-weight numpy) with public API coming soon too. It respects the different Python versions, so its a lite "quasi API". And in case there will be a (unlikely) change in future Pythons, the Cython people will take care as far as there is no official API coming up. Or perhaps most people with such interest use Cython anyway.
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