2008/7/17 Anthony Floyd email@example.com:
What I need to know is how I can trick pickle or Numpy to put the old class into the new class.
If you have an example data-file, send it to me off-list and I'll figure out what to do. Maybe it is as simple as
np.core.ma = np.oldnumeric.ma
It's extremely surprising to find a significant API change like this in a stable package.
I don't know if renaming things in np.core counts as an API change. Pickling is notoriously unreliable for storing arrays, which is why Robert wrote `load` and `save`. I hope that Pierre can get around to implementing MaskedArray storage for 1.2. Otherwise, you can already save the array and mask separately.