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pygsl /

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PyGSL: Python interface for GNU Scientific Library

Status of GSL-Library:

The gsl-library is since version 1.0 stable and for general use. Read more about it at the [1]GSL homepage.

Status of this interface:

We are collecting implementations of parts of gsl. So the interface is not complete. We are looking forward to contributions of new submodules, while maintaining the awailabel code.

Requirements:

To build the interface, you will need

  • [2]gsl-1.2 or better,
  • [3]python2.2 or better and
  • [4]NumPy, and
  • a ANSI C compiler (i.e. gcc).

Retrieving the Interface:

You can download pygsl at [5]http://pygsl.sourceforge.net

Installing GSL interface:

Uninstall the old version of pygsl

gsl-config must be on your path

gzip -d -c pygsl-x.y.z.tar.gz|tar xvf- cd pygsl-x.y.z #do this with your prefered python version #to set the gsl location explicitly use setup.py --gsl-prefix=/path/to/gsl #If your are using cvs, remove your build directory. python setup.py build # Running only python setup.py # can result in an error. So if you see an error runing setup.py please run python setup.py build # change to a id, that is allowed to do installation python setup.py install

Ready....

Using pygsl

Do NOT test the interface in the distribution root directory! -- please install it first and then change to the tests directory and execute python run_test.py If you want to execute it in the distribution root directory, please run python setup.py build_ext -i first! It will put the requried binary files into the pygsl directory.

Just write in python import pygsl.sf print "%g+/-%g"%pygsl.sf.erf(1)

or import pygsl.rng rng=pygsl.rng.rng() print rng.gaussian(1.0)

You may set the environment variable LD_LIBRARY_PATH to find the gsl shared object.

Uninstall GSL interface:

rm -r "python install path"/lib/python"version"/site-packages/pygsl

Supported Platforms:

  • Linux with python2.* and gsl-1.x
  • Mac OS X with python2.* and gsl-1.x
  • Win32 with python2.* and gsl-1.x

but is supposed to compile and run on any posix platform

Testing:

The directory test will contain several testsuites, based on python unittest. Change to this directory to run the tests.

What is implemented (versus gsl1.10):

  • Blas
  • Chebyshev
  • Combination
  • Const
  • Diff
  • Eigen
  • Fit
  • Ieee
  • Integrate
  • Interpolation
  • Linalg
  • Math
  • Minimize
  • Multifit
  • Multifit_nlin
  • Multimin
  • Multiroots
  • Odeiv
  • Permutation
  • Poly
  • Qrng
  • Rng
  • Roots
  • Siman
  • Sf
  • Spline
  • Statistics

What is not implemented yet (versus gsl1.10):

  • GSL Capabilites not yet wrapped by PyGSL

    • Sorting
    • N-tuples
  • GSL Capabilites partly implemented

    • Discrete Hankel Transforms

See also the [6]TODO file in the distribution.

For the exact function volume for a module, please type:

import pygsl.sf dir(pygsl.sf)

You can do this with the other modules, too. The naming scheme is the same as in gsl.

Documentation:

There will be a small reference, but the function reference can be found in the doc strings and at the gsl-reference. See also the "examples" directory.

Support:

Please send mails to [7]the pygsl mailinglist.

Developement:

You can browse our [8]cvs tree.

Type this to check out the actual version: cvs -d:pserver:anonymous@cvs.pygsl.sourceforge.net:/cvsroot/pygsl login Hit return for no password. cvs -z3 -d:pserver:anonymous@cvs.pygsl.sourceforge.net:/cvsroot/pygsl co pygsl

The script tools/extract_tool.py generates most of the special function code.

ToDo:

See TODO.

History:

  • a gsl-interface for python was needed for a project at [9]center for applied informatics cologne.
  • pygsl-0.0.3 was released at May 23, 2001
  • pygsl-0.0.4 was released at January 8, 2002
  • pygsl-0.1 was released at August 28, 2002
  • pygsl-0.1b was released at May 17, 2003
  • oygsl-0.3.0 was released
  • oygsl-0.3.1 was released
  • oygsl-0.3.3 was released
  • oygsl-0.9.0 was released
  • oygsl-0.9.3 was released on 15. June 2008
  • oygsl-0.9.4 will be released soon

Thanks:

  • Fabian Jakobs for blas, linalg and eigen
  • [10]Jochen Kuepper for pygsl.statistics functions
  • Leonardo Milano for rpm build support and test
  • Michael Forbes for Series Acceleration

Maintainers:

PyGSL is currently maintained by [11]Achim Gaedke and [12]Pierre Schnizer.

Thanks to: [13]SourceForge Logo

References

Visible links 1. http://sources.redhat.com/gsl/ 2. http://sources.redhat.com/gsl 3. http://www.python.org/ 4. http://numpy.sf.net/ 5. http://pygsl.sourceforge.net/ 6. file:///home2/schnizer/Devel/pygsl/doc/TODO.html 7. mailto:pygsl-discuss@lists.sourceforge.net 8. http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pygsl/pygsl/ 9. http://www.zaik.uni-koeln.de/AFS
  1. mailto:jochen@jochen-kuepper.de
  2. mailto:AchimGaedke@users.sourceforge.net
  3. mailto:schnizer@users.sourceforge.net
  4. http://sourceforge.net/