Is is possible without knowing structure to make hdf5 file that will be the same copy of another one in python 3.6?

Question

If I have one hdf5 file f1.h5 and I want to make a copy of this file to another one (e.g. f2.h5), but I don't know the structure of f1.h5 and I want to copy it automatically, can I do it with some tips of h5py?

Answer 1

You can use the .copy() method to recursively copy objects from f1.h5 to f2.h5. You don't need to know the schema: use keys to access groups/datasets at the root level. If the source is a Group object, by default all objects within that group will be copied recursively.

import h5py
h5r=h5py.File("f1.h5", 'r')
with h5py.File("f2.h5", 'w') as h5w:
    for obj in h5r.keys():        
        h5r.copy(obj, h5w )       
h5r.close()