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import h5py
import numpy as np
with h5py.File('network/lgn_v1_edges.h5', 'a') as h5:
node_id_data = np.zeros((449, 2), dtype=np.uint64)
ds = h5['edges/lgn_to_v1/indicies/target_to_source/node_id_to_range']
node_id_data[0:449, :] = ds
node_id_data[448,:] = [448, 448]
#print node_id_data
#ds.resize((449, 2))
#ds[...] = node_id_data
#ds.resize((449, 2))
del h5['edges/lgn_to_v1/indicies/target_to_source/node_id_to_range']
h5.create_dataset('edges/lgn_to_v1/indicies/target_to_source/node_id_to_range', data=node_id_data)
#ary = np.array(h5['edges/lgn_to_v1/indicies/target_to_source/node_id_to_range'][...])
#print np.append(ary, [[448, 449]])
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