2008/7/16 Anthony Floyd email@example.com:
Unfortunately, when we try to unpickle the data saved with Numpy 1.0.3 in the new code using Numpy 1.1.0, it chokes because it can't import numpy.core.ma for the masked arrays. A check of Numpy 1.1.0 shows that this is now numpy.ma.core.
The maskedarray functionality has been rewritten, and is now `numpy.ma`. For the time being, the old package is still available as `numpy.oldnumeric.ma`.