read_hdf5.py

from __future__ import print_function
import h5py

input_file = '/project/projectdirs/atlas/sfarrell/atlas_dl/hdf5/prod002_2016_11_10/GG_RPV10_1400_850.h5'
with h5py.File(input_file, 'r') as hf:
    keys = hf.keys()
    print('Loading %d events' % len(keys))
    print('Contents of the first event:')
    event = hf.get(keys[0])
    print(event.keys())
    print('Number of clusters:', event['clusE'].len())
    print('Gluino mass:', event['mGlu'].value)
    print('Neutralino mass:', event['mNeu'].value)
    print('Passes SR:', event['passSR'].value)
    print('Event weight:', event['weight'].value)