HDF5 for Python

The h5py package is a Pythonic interface to the HDF5 binary data format.

HDF5 lets you store huge amounts of numerical data, and easily manipulate that data from NumPy. For example, you can slice into multi-terabyte datasets stored on disk, as if they were real NumPy arrays. Thousands of datasets can be stored in a single file, categorized and tagged however you want.

Where to start

Other resources

Introductory info

High-level API reference

Advanced topics

Meta-info about the h5py project