Mailman 3 March 2003 - SciPy-Dev

Building/distributing SciPy II
by Pearu Peterson March 7, 2003

March 7, 2003

---------- Forwarded message ---------- Date: Fri, 7 Mar 2003 07:33:16 -0600 (CST) From: pearu(a)scipy.org Reply-To: scipy-dev(a)scipy.org To: scipy-cvs(a)scipy.org Subject: [Scipy-cvs] CVSROOT modules,1.39,1.40 Update of /home/cvsroot/CVSROOT In directory scipy.org:/tmp/cvs-serv29365 Modified Files: modules Log Message: Created scipy_core module that bundles scipy_test and scipy_distutils. This is the first step for implementing suggestions in http://www.scipy.org/site_content/mailman?fn=scipy-dev/2002-November/001365… about refining scipy distributing process. Discussion: Basically, there are two distinct usages of scipy: 1) using scipy as one big package, 2) using only certain parts of scipy, e.g. using weave, linalg, fftpack, special, etc. packages as standalone packages. Currently installation process for the case 1) is as follows: 0. Install scipy prerequisities: f2py2e(scipy_distutils), [atlas, fftw] 1. cvs checkout scipy 2. setup_scipy_core.py install 3. setup_scipy.py install And installation process for 2), say for linalg, is 0. Install linalg prerequisities: f2py2e(scipy_distutils), [atlas/blas/lapack] 1. cvs checkout scipy_core 2. setup_scipy_core.py install 3. cvs checkout scipy_base 4. setup_scipy_base.py install 5. cvs checkout scipy/linalg 6. setup_linalg.py install IMO, the installation processe for 2) should be simpler. This could be achived by moving also scipy_base under scipy_core. Are there any objections? We could aim even simpler installation process for xxx: 0. Install xxx prerequisities. 1. cvs checkout xxx 2. setup_xxx.py install where xxx can be either scipy or one of its subpackages. However, to achive this some scipy CVS reorganization is required. The questions is: are you willing to put up some temporary inconvinience and pain that this reorganization might cause? Here follows what I have in mind. The CVSROOT/modules file would contain: scipy_core world/scipy_core scipy world/scipy weave world/scipy/weave linalg world/scipy/linalg fftpack world/scipy/fftpack ... gui_thread world/scipy/gui_thread chaco world/chaco kiva world/kiva traits world/traits freetype world/freetype scipy_all &scipy &scipy_core weave_all &weave &scipy_core linalg_all &linalg &scipy_core fftpack_all &fftpack &scipy_core ... chaco_all world/chaco_setup setup.py &chaco &traits &kiva &freetype &weave &gui_thread &scipy_core where - world/scipy_core contains scipy_base, scipy_test, scipy_distutils; moved here from world/scipy if required (I am not sure that when defining scipy_core world/scipy/scipy_base world/scipy/scipy_test world/scipy/scipy_distutils will not cause some CVS conflicts). Thoughts? Index: modules =================================================================== RCS file: /home/cvsroot/CVSROOT/modules,v retrieving revision 1.39 retrieving revision 1.40 diff -C2 -d -r1.39 -r1.40 *** modules 12 Feb 2003 01:22:24 -0000 1.39 --- modules 7 Mar 2003 13:33:13 -0000 1.40 *************** *** 28,31 **** --- 28,34 ---- scipy_distutils world/scipy/scipy_distutils scipy_test world/scipy/scipy_test + + scipy_core &scipy_distutils &scipy_test + compiler world/scipy/compiler weave world/scipy/weave _______________________________________________ Scipy-cvs mailing list Scipy-cvs(a)scipy.org http://scipy.net/mailman/listinfo/scipy-cvs

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gui_thread and wxPython events
by Travis Oliphant March 6, 2003

March 6, 2003

Question on architecture, Say you are trying to do plotting from the command line using wxPython and gui_thread. How are the proxy classes available to the first thread (the command line) supposed to be able to receive events from the second thread (wxPython) such as what happens when the window gets closed by the user. Right now, this is not working at least on Linux as I've described before --- if it works on Windows, I'd like to know why because it doesn't seem like it should there either. I noticed there is something called a PushEventHandler but I don't know what it is doing. Any words of advice.� I'd like to start making the plotting routines more capable by building on chaco.� -Travis O. -- Travis Oliphant Assistant Professor 459 CB Electrical and Computer Engineering Brigham Young University Provo, UT 84602 Tel: (801) 422-3108 oliphant.travis(a)ieee.org

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(no subject)
by Travis Oliphant March 5, 2003

March 5, 2003

When using wxplt, I've noticed that I can't close windows. I get an error about the object not being in the list. I've tracked the problem down to the fact that the _figure list stores the proxy objects but the event handler compares self (a wxPython class) to see if it is in the list of current figures and deletes it from there first. That is where the error is occuring, because self (a wxPython class) is not found among any of the proxy objects. I don't know enough about the intended design to fix this. Should _figure store actual wxPython classes or should the wxPython class do something to destroy the proxy class as well? -teo -- Travis Oliphant Assistant Professor 459 CB Electrical and Computer Engineering Brigham Young University Provo, UT 84602 Tel: (801) 422-3108 oliphant.travis(a)ieee.org

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RE: [Scipy-cvs] world/scipy/scipy_distutils mingw32_support.py,1.9,1.10
by eric jones March 5, 2003

March 5, 2003

Looks like this fixed things. The vq build is dying on my desktop which has mingw gcc 3.2 on it. It is the dllwrap call that is failing. It needs dllwrap.exe --driver-name g++ ... specified so that it links in the correct C++ libraries. How was this working before? Maybe 2.95.3 didn't have the problem?? Anyway, I'll build the vq version by hand for the moment. Thanks for the fix, eric ---------------------------------------------- eric jones 515 Congress Ave www.enthought.com Suite 1614 512 536-1057 Austin, Tx 78701 > -----Original Message----- > From: scipy-cvs-admin(a)scipy.org [mailto:scipy-cvs-admin@scipy.org] On > Behalf Of pearu(a)scipy.org > Sent: Friday, February 28, 2003 5:33 PM > To: scipy-cvs(a)scipy.org > Subject: [Scipy-cvs] world/scipy/scipy_distutils > mingw32_support.py,1.9,1.10 > > Update of /home/cvsroot/world/scipy/scipy_distutils > In directory scipy.org:/tmp/cvs-serv23974 > > Modified Files: > mingw32_support.py > Log Message: > Enabled use_gcc,g77 again in mingw32_support.py as calling them in > build_flib may be too late. Not sure if this was the cause of building > failures on win32.. > > > Index: mingw32_support.py > =================================================================== > RCS file: /home/cvsroot/world/scipy/scipy_distutils/mingw32_support.py,v > retrieving revision 1.9 > retrieving revision 1.10 > diff -C2 -d -r1.9 -r1.10 > *** mingw32_support.py 27 Feb 2003 16:21:00 -0000 1.9 > --- mingw32_support.py 28 Feb 2003 23:33:15 -0000 1.10 > *************** > *** 68,72 **** > # raise DistutilsPlatformError, msg > > ! if 0: > # See build_flib.finalize_options method in build_flib.py > # where set_windows_compiler is called with proper > --- 68,72 ---- > # raise DistutilsPlatformError, msg > > ! if 1: > # See build_flib.finalize_options method in build_flib.py > # where set_windows_compiler is called with proper > > > _______________________________________________ > Scipy-cvs mailing list > Scipy-cvs(a)scipy.org > http://scipy.net/mailman/listinfo/scipy-cvs

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ga.. examples.py
by Kasper Souren March 5, 2003

March 5, 2003

Hi, I want to try out the genetic programming stuff from scipy. But not even examples.py works. And I couldn't find a lot of documentation... I'm using Python 2.2.1 (Debian) and an up-to-date cvs version of scipy. I'm trying to get examples.py running by fixing stuff in several places. But I'm wondering: is scipy.ga still being maintained? And if I manage fix it, can I send the patches somewhere? bye, Kasper

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#its-not-too-late# cf
by Lynn Khan March 5, 2003

March 5, 2003

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Exact real arithmetic and Functional C++
by M. Evans March 4, 2003

March 4, 2003

Exact real arithmetic in C++ and Python, http://more.btexact.com/people/briggsk2/XR.html using the awesome FC++ library, http://www.cc.gatech.edu/~yannis/fc++/ M.

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Asking about aplication GA's on root finding
by Huang Wen Long March 4, 2003

March 4, 2003

Dear sir, My name is Saiman, I am an undergraduate student at Institute Bandung of Technology (ITB), west-java , Indonesia. I take mathematics course and now is my final year. Now I am taking a subject called Mathematical Modelling which the students devided into groups and each group handle one project. While doing our project, we are facing a problem to solve system of non-linear equations such as : - F1(x,y,z) = z*exp(2*x) + z*y - F2(x,y,z) = x^2 +3*x*y^2 . . . We have tried to solve the problem using conventional/analytical methods such as Newton's Method and its variant, but they failed to converge. Our conclusion about the failure is that maybe we are unable to determine the suitable initial points so that they can't converge. Then our advisor introduce us to Genetic Algorithms. While searching on internet, we found that GA's is used widely in optimization. At this occasion we would like to ask if there is possibility GA's can be aplied to our problem and how. Also, what refferences related to the problem should we have ? Thank you for the time and we are looking forward for your comments. sincerely, Saiman nb. I found your email add while searching on internet, in a millist discussing about GA's and root finding.

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Re: [Scipy-cvs] world/chaco/demo wxdemo_plot.py,1.28,1.29
by Eric Jones March 4, 2003

March 4, 2003

How about mapping this to the ESC key? eric dmorrill(a)scipy.org wrote .. > Update of /home/cvsroot/world/chaco/demo > In directory scipy.org:/tmp/cvs-serv28406 > > Modified Files: > wxdemo_plot.py > Log Message: > Added ability to deselect all objects by ctrl-clicking the PlotWindow. > > > Index: wxdemo_plot.py > =================================================================== > RCS file: /home/cvsroot/world/chaco/demo/wxdemo_plot.py,v > retrieving revision 1.28 > retrieving revision 1.29 > diff -C2 -d -r1.28 -r1.29 > *** wxdemo_plot.py 1 Mar 2003 17:35:56 -0000 1.28 > --- wxdemo_plot.py 3 Mar 2003 16:21:45 -0000 1.29 > *************** > *** 985,992 **** > > def on_left_up ( self, event ): > if self._x is None: > return > > - global object > objects = self.objects_at( event ) > stack = [] > --- 985,998 ---- > > def on_left_up ( self, event ): > + global object > + > if self._x is None: > return > + > + if event.ControlDown(): > + object = self._x = None > + self.select( None ) > + return > > objects = self.objects_at( event ) > stack = [] > *************** > *** 1009,1013 **** > except: > self._last_top = object = None > ! if event.ShiftDown() or event.ControlDown() or event.MetaDown(): > self._x = None > return > --- 1015,1019 ---- > except: > self._last_top = object = None > ! if event.ShiftDown() or event.MetaDown(): > self._x = None > return > > > _______________________________________________ > Scipy-cvs mailing list > Scipy-cvs(a)scipy.org > http://scipy.net/mailman/listinfo/scipy-cvs

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