H5py

The kinds of cosmological simulations that I run generate huge amounts of data, and to analyse them I h5py to be able access the exact data that I want quickly and painlessly. HDF5 is one answer, h5py.

The h5py package is a Pythonic interface to the HDF5 binary data format. It 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. For example, you can iterate over datasets in a file, or check out the. You don't need to know anything special about HDF5 to get started.

H5py

Released: Apr 8, View statistics for this project via Libraries. The h5py package provides both a high- and low-level interface to the HDF5 library from Python. A strong emphasis on automatic conversion between Python Numpy datatypes and data structures and their HDF5 equivalents vastly simplifies the process of reading and writing data from Python. Oct 9, Jun 20, Jan 23, May 24, Nov 16, Oct 20, Aug 23, Jun 22,

Uploaded Jun 11, cp

Released: Oct 9, View statistics for this project via Libraries. The h5py package provides both a high- and low-level interface to the HDF5 library from Python. A strong emphasis on automatic conversion between Python Numpy datatypes and data structures and their HDF5 equivalents vastly simplifies the process of reading and writing data from Python. Wheels are provided for several popular platforms, with an included copy of the HDF5 library usually the latest version when h5py is released.

The h5py package is a Pythonic interface to the HDF5 binary data format. It 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. For example, you can iterate over datasets in a file, or check out the. You don't need to know anything special about HDF5 to get started. Almost anything you can do from C in HDF5, you can do from h5py. Best of all, the files you create are in a widely-used standard binary format, which you can exchange with other people , including those who use programs like IDL and MATLAB. Check out the install guide.

H5py

The kinds of cosmological simulations that I run generate huge amounts of data, and to analyse them I need to be able access the exact data that I want quickly and painlessly. HDF5 is one answer. It provides parallel IO, and carries out a bunch of low level optimisations under the hood to make queries faster and storage requirements smaller. Getting h5py is relatively painless in comparison, just use your favourite package manager. We first load the numpy and h5py modules. The first step to creating a HDF5 file is to initialise it. It uses a very similar syntax to initialising a typical text file in numpy. The first argument provides the filename and location, the second the mode. This creates a file object, hf , which has a bunch of associated methods. Just provide a name for the dataset, and the numpy array.

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Supported by. Dec 20, Mar 19, Sep 19, View statistics for this project via Libraries. Project links Homepage. Almost anything you can do from C in HDF5, you can do from h5py. Dec 9, Newer version available 3. Sep 1, Jan 4, As before, to read data in irectories and subdirectories use the get method with the full subdirectory path. Read and write HDF5 files from Python.

Released: Feb 8,

Oct 30, We first load the numpy and h5py modules. Nov 6, Navigation Project description Release history Download files. Just provide a name for the dataset, and the numpy array. Jan 4, View statistics for this project via Libraries. Uploaded Jul 6, cp Dec 20, Dec 9, Apr 22, The default is 4, but it can be an integer between 0 and 9. Download files Download the file for your platform. Jun 22, If you're not sure which to choose, learn more about installing packages.