distribute
numpy >= 1.7.0
h5py >= 2.1.1
ws4py >= 0.2.4
pint == 0.1.3-djb
tornado >= 2.4.1
httplib2 >= 0.7.2
isodate >= 0.4.7
python-dateutil >= 2.0
pyparsing >= 1.5.0, < 2.0.0