Hi, I wrote a module for wrapping the well-known high-precision QD library written by D.H. Bailey. You can find it here: https://github.com/baruchel/qd
It is written in pure C with the CPython C-API in order to get the highest possible speed. The QD library provides floating number types for ~32 and ~64 decimals digits of precision and should be quicker for such precisions than other arbitrary-precision libraries. My ultimate goal is to implement these two types as new dtype for Numpy arrays, but I release here a first version which already gives a complete interface to the QD library. Regards, -- Thomas Baruchel -- https://mail.python.org/mailman/listinfo/python-list
