Mailman 3 July 2008 - SciPy-Dev

from scipy import * in r4484 doesn't load submodules
by Pauli Virtanen July 3, 2008

July 3, 2008

Hi, It was so in Scipy 0.6 that >>> from scipy import * imported also the submodules 'optimize', 'integrate', 'special', 'linalg', etc, etc. to the namespace. It seems that this has changed in Scipy 0.7 SVN since that. Is removing these from __all__ and the API change intentional? (If it is, getting it to release notes would be nice.) -- Pauli Virtanen

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Enthought Python Distribution
by Travis Vaught July 2, 2008

July 2, 2008

Greetings, We're pleased to announce the beta release of the Enthought Python Distribution for *Mac OS X*. http://www.enthought.com/products/epd.php This release should safely install alongside other existing Python installations on your Mac. With the Mac OS X platform support, EPD now provides a consistent scientific application tool set across three major platforms (Windows, RedHat Linux (32 and 64 bit) and OS X). This is a _beta_ release, so install at your own risk. Please provide any feedback to info(a)enthought.com. See the included EPD Readme.txt for instructions and known issues. About EPD --------- The Enthought Python Distribution (EPD) is a "kitchen-sink-included" distribution of the Python™ Programming Language, including over 60 additional tools and libraries. The EPD bundle includes the following major packages: Python Core Python NumPy Multidimensional arrays and fast numerics for Python SciPy Scientific Library for Python Enthought Tool Suite (ETS) A suite of tools including: Traits Manifest typing, validation, visualization, delegation, etc. Mayavi 3D interactive data exploration environment. Chaco Advanced 2D plotting toolkit for interactive 2D visualization. Kiva 2D drawing library in the spirit of DisplayPDF. Enable Object-based canvas for interacting with 2D components and widgets. Matplotlib 2D plotting library wxPython Cross-platform windowing and widget library. Visualization Toolkit (VTK) 3D visualization framework There are many more included packages as well. There's a complete list here: http://www.enthought.com/products/epdlibraries.php License ------- EPD is a bundle of software--every piece of which is available for free under various open-source licenses. The bundle itself is offered as a free download to academic and individual hobbyist use. Commercial and non-degree granting institutions and agencies may purchase individual subscriptions for the bundle (http://www.enthought.com/products/order.php?ver=MacOSX ) or contact Enthought to discuss an Enterprise license (http://www.enthought.com/products/enterprise.php ). Please see the FAQ for further explanation about how the software came together. (http://www.enthought.com/products/epdfaq.php) Thanks, Travis

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ANN: SfePy 00.46.02
by Robert Cimrman July 1, 2008

July 1, 2008

I am pleased announce the release of SfePy 00.46.02. SfePy is a finite element analysis software in Python, based primarily on Numpy and SciPy. Mailing lists, issue tracking, mercurial repository: http://sfepy.org Home page: http://sfepy.kme.zcu.cz Major improvements: - alternative short syntax for specifying essential boundary conditions, variables and regions - manufactured solutions tests: - SymPy support - site configuration now via script/config.py + site_cfg.py - new solvers - new terms For more information on this release, see http://sfepy.googlecode.com/svn/web/releases/004602_RELEASE_NOTES.txt If you happen to come to Leipzig for EuroSciPy 2008, see you there! Best regards, Robert Cimrman & SfePy developers

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fftpack: what should the API for fftn be ?
by David Cournapeau July 1, 2008

July 1, 2008

Hi, While taking a look at the ticket 244, there is something I don't quite understand about the current behaviour for scipy fftn. The problem in the ticket is that when both shape and axes arguments are given, fftn wrongly ignore axes when padding the input according to shape. OTOH, scipy fftn accepts shape and axes of different lengths (contrary to numpy fftn), and I don't understand the expected behavior in that case. Should we forbid the case len(shape) != len(axes); if not, what's the expected behavior ? cheers, David

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Install error on RHEL5
by Michael Hearne June 30, 2008

June 30, 2008

I just finished an install of numpy/scipy/matplotlib on a 64-bit RHEL5 system, and am now trying to replicate that on a 32-bit system. So far, there are two differences: 1) fftw3 is not available through yum on the 32-bit system, so I built it from source. 2) Attempting to build scipy results in the error below. Attached is a PDF with the notes (most of which came from Phil Austin) I compiled after installing on the 64-bit system. I'm currently recompiling ATLAS (which takes an amazingly long time), and then will try to rebuild LAPACK, BLAS, etc. Before I get there, does anyone have any idea what the root of the below error might be? usr/local/bin/python setup.py build Traceback (most recent call last): File "setup.py", line 53, in <module> setup_package() File "setup.py", line 28, in setup_package from numpy.distutils.core import setup File "/usr/local/lib/python2.5/site-packages/numpy/__init__.py", line 103, in <module> import linalg File "/usr/local/lib/python2.5/site-packages/numpy/linalg/__init__.py", line 4, in <module> from linalg import * File "/usr/local/lib/python2.5/site-packages/numpy/linalg/linalg.py", line 29, in <module> from numpy.linalg import lapack_lite ImportError: /usr/local/lib/python2.5/site-packages/numpy/linalg/lapack_lite.so: undefined symbol: cblas_zgemm Thanks, Mike -- ------------------------------------------------------ Michael Hearne mhearne(a)usgs.gov (303) 273-8620 USGS National Earthquake Information Center 1711 Illinois St. Golden CO 80401 Senior Software Engineer Synergetics, Inc. ------------------------------------------------------

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