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Building and installing Py-ART

Required Dependencies

Py-ART requires the following software, earlier version may work but have not been extensively tested.

Optional Dependencies

The following packages are recommended for a fully-functional Py-ART installation, but the package will install and work with reduced functionality without these packages.

  • TRMM RSL 1.43 or newer

Obtaining the latest source

The latest source code for Py-ART can be obtained from the GitHub repository, https://github.com/ARM-DOE/pyart.

The latest source can be checked out using

$ git clone https://github.com/ARM-DOE/pyart.git

Installing from Source

The path to the TRMM RSL library must be provided during install. This can either be done by setting the RSL_PATH environmentation variable. In bash this can be done using export RSL_PATH=/path/to/rsl/. If this location is not specified, some common locations will be searched. Note that the location provided should be the root TRMM RSL path, under which both a lib and include directory are contained, the default location is /lib/local/trmm.

After specifying the TRMM RSL path Py-ART can be installed globally using

$ python setup.py install

of locally using

$ python setup.py install --user

If you prefer to use Py-ART without installing, simply add the this path to your PYTHONPATH (directory or with a .pth file) and compile the extension in-place.

$ python setup.py build_ext -i

Frequently asked questions

  • I'm getting a segfault or another error in python when using pyart.io.read_rsl() with IRIS/other files.

    This is due to a bug in RSL, and can be remedied by adding -fno-stack-protector -D_FORTIFY_SOURCE=0 to the CFLAGS parameter of the makefile of RSL. This issue has been fixed with the release of rsl-v1.44.

  • I'm having trouble getting PyGLPK to compile on my 64-bit operating system. Change the line in the setup.py file from

    define_macros = macros, extra_compile_args=['-m32'], extra_link_args=['-m32'],

    to

    define_macros = macros, extra_compile_args=['-m64'], extra_link_args=['-m64'],

    Then build and install PyGLPK as recommended in the PYGLPK README.txt file.

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