[Pkg-exppsy-maintainers] Followup

[Per B. Sederberg]

Also, I've done some easy tests and I think that by changing the
default value to None the massive memory leak is now fixed.  As I
mentioned before, if you loaded multiple NiftiDatasets, say in a loop
where you did some identical analyses, the memory would just add and
add:

for i in range(100):
    data = NiftiDataset(samples='file%d'%(i), labels=1)

That loop would cause your machine to explode.  And I'm pretty sure it
doesn't now.

P