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Questions tagged [pytables]

A Python library for working with extremely large hierarchical (HDF5) datasets.

PyTables is a package for managing hierarchical (HDF5) datasets and designed to efficiently and easily cope with extremely large amounts of data. PyTables is available as a free download.

PyTables is built on top of the HDF5 library, using the Python language and the NumPy package. It features an object-oriented interface that, combined with C extensions for the performance-critical parts of the code (generated using Cython), makes it a fast, yet extremely easy to use tool for interactively browse, process and search very large amounts of data.

Links to get started:
- Documentation
- Tutorials
- Library Reference
- Downloads

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How can the shape of a pytables table column be defined by a variable?

I'm trying to create an IsDescription subclass, so that I can define the structure of a table I'm trying to create. One of the attributes of the subclass** needs to be shaped given a certain length that is unknown until runtime (it depends on a file…
darthbith
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Saving mixed structured data with h5py

I have a dataset with 100,000 entries, each of the form: { attr1 float[300] attr2 float[300] attr3 float[300] attr4 float attr5 float attr6 float } What is the most efficient way to store this in an .hdf5 file?
user7867665
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