[hdf-forum] ANN: HDF5 for Python (h5py) 1.2

Andrew Collette andrew.collette at gmail.com
Tue Jun 23 04:26:33 EDT 2009


Hi Dominik,

> May I ask for a brief comment in context of pytables?

H5py and PyTables have different goals; h5py tries to map the HDF5
feature set as directly to Python as possible, while PyTables presents
a more database-style interface.  This leads to different feature
sets; for example, h5py has Python bindings for almost the whole HDF5
C API (in addition to the high-level array interface), while PyTables
has more facilities for indexing, fast querying (see also "numexpr")
and other database-like operations.  They also use different
Python-side type systems.

There are a couple of brief comparisons here:

http://www.pytables.org/moin/FAQ#HowdoesPyTablescomparewiththeh5pyproject.3F
http://code.google.com/p/h5py/wiki/FAQ#What's_the_difference_between_h5py_and_Pytables?

Andrew

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