HDF5_externalLink.py

import h5py 

#Shows how to create an externalLink (symbolic) to a hdf5 File
#Documentation available at: https://docs.h5py.org/en/stable/high/group.html#external-links
myfile = h5py.File('./example.h5','w')
myfile['ext link'] = h5py.ExternalLink("testdata_2.h5", "/")

myfile.close()