Dear list, I'm writing this because i have developed a small python module that might be of interest to you the readers of this list: http://code.google.com/p/pyhdf5io/ It basically implements load/save functions that mimic the behaviour of those found in Matlab, ie with them you can store your variables from within the interactive shell (IPython, python) or from within a function, and then load them back in again. One important difference is that the hdf5 format is used to store the variables, which comes with aa number of benefits: - a open standard file format which is supported by many applications. - completely portable file format across different platforms. Read more here: http://www.hdfgroup.org/HDF5/whatishdf5.html And now to the question: I think that this module is to small to be developed and maintained on its on, I think It would be better if it could be part of some larger project. So where would pyhdf5io fit in? Any tips and ideas are highly appreciated. Thanks. /Albert