A Dijous 12 Juliol 2007 16:51, Eric Jonas escrigué: > Francesc, > Thanks for the quick reply! > > > I've looked into this and it is apparently an alignment issue in nested > > records created with other tools than PyTables. Despite that PyTables > > already has machinery for dealing with different alignments, it seems > > that it is not sophisticated enough for dealing with all cases, most > > specially nested records. > > I started looking around in the pytables(-2.0) source to see if this was > something I could fix on either side, and found the ~src directory with > various modified versions of the original HDF5 library files, with > H5TB-opt saying that the modifications were necessary to support nested > datatypes.
Yes, that's right. In the beginning, PyTables included a slightly modified version of the HDF5 HL (High Level APIs). However, these files have been evolving and became hardly modified so that little of the initial HL libraries can be recognised in the code now. > To what degree are the resulting files generated by pytables readable > with other H5TB programs, and vice versa? I've always thought of > pytables as an interface (bindings, if you will) to HDF5-table files. Is > that an incorrect view? Not quite. PyTables used the HL libraries (in particular, the table interface) so as to easy the programming of the very own PyTables features, while trying to retain format compatibility with HL. But anyway, the goals for PyTables and HL were different from the very beginning. Anyway, if you need help for looking into this you can always contract us. For details, see http://www.carabos.com/services. Regards, -- >0,0< Francesc Altet http://www.carabos.com/ V V Cárabos Coop. V. Enjoy Data "-" ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Pytables-users mailing list Pytables-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pytables-users
