visualpython-users

Re: [Visualpython-users] Native Mac version of VPython

[Dethe E. <det...@gm...>]

Thanks for this.  I'm on vacation right now and just left the Rockies  
on our way to the sea, but will be taking a look at this when I get  
back to Vancouver.  My first impression is that it's just one more  
layer between Python and OpenGL, which is not neccessary since OS X  
has great OpenGL support, but there may be something I've missed.

--Dethe

On 9-Aug-05, at 9:11 PM, Eric Ayars wrote:

> Hello all,
>
> I'm here at the AAPT meeting, where Bruce Sherwood and Ruth Chabay  
> have both suggested I post this information to the list in hopes  
> that it helps with the development of a native OSX version of VPython.
>
> There is a program for OSX called AquaTerm:
> http://www.apple.com/downloads/macosx/unix_open_source/aquaterm.html
> http://sourceforge.net/projects/aquaterm/
>
> It's my understanding that this was built to serve as a Mac-native  
> X output window for programs that would otherwise need to be run in  
> X. I know nothing about its inner workings, but it's supposed to  
> make porting from X->OSX easier. I primarily use it for Gnuplot (an  
> X-based plotting program) output under OS X. Would this be a simple  
> way to get vpython working in OS X without using Xwindows?
>
> I'd be happy to help in any way possible, but my area of expertise  
> does not extend to any serious system coding so someone else will  
> have to take lead on this. I would LOVE to be able to use vpython  
> directly from the terminal with the default OS X install of python...
>
> -EA
>
> -----------------------------------------------------------------
> Dr. Eric Ayars
> Assistant Professor of Physics
> California State University, Chico
> ay...@ma...
>
>
>
>
> -------------------------------------------------------
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[Visualpython-users] Native Mac version of VPython

[Eric A. <Ay...@ma...>]

Hello all,

I'm here at the AAPT meeting, where Bruce Sherwood and Ruth Chabay  
have both suggested I post this information to the list in hopes that  
it helps with the development of a native OSX version of VPython.

There is a program for OSX called AquaTerm:
http://www.apple.com/downloads/macosx/unix_open_source/aquaterm.html
http://sourceforge.net/projects/aquaterm/

It's my understanding that this was built to serve as a Mac-native X  
output window for programs that would otherwise need to be run in X.  
I know nothing about its inner workings, but it's supposed to make  
porting from X->OSX easier. I primarily use it for Gnuplot (an X- 
based plotting program) output under OS X. Would this be a simple way  
to get vpython working in OS X without using Xwindows?

I'd be happy to help in any way possible, but my area of expertise  
does not extend to any serious system coding so someone else will  
have to take lead on this. I would LOVE to be able to use vpython  
directly from the terminal with the default OS X install of python...

-EA

-----------------------------------------------------------------
Dr. Eric Ayars
Assistant Professor of Physics
California State University, Chico
ay...@ma...

[Visualpython-users] Another correction to povexport

[Bruce S. <Bru...@nc...>]

Posted another corrected version of povexport, the module for converting 
a VPython scene to Pov-Ray ray-tracing scene description. The new 
scaling failed to handle arrow shafts correctly.

Bruce Sherwood

[Visualpython-users] Updated Windows installers

[Bruce S. <Bru...@nc...>]

Updated the latest Windows installers for Python 2.3 and 2.4 to correct 
two errors: There was no listing of the Visual documentation on the Help 
menu in IDLE, and the installer didn't install precompiled .pyc files 
for Visual and Numeric, which would cause a minor slowdown on 
administered computers where the user doesn't have access to the Python 
site-packages folder, so that the .pyc files generated during a session 
wouldn't be saved.

Bruce Sherwood

[Visualpython-users] Correction to povexport

[Bruce S. <Bru...@nc...>]

Corrected an error in povexport which I'd introduced in fixing a scaling 
problem; frame translations weren't properly scaled.

Bruce Sherwood

[Visualpython-users] 3.2.3 for Windows

[Bruce S. <Bru...@nc...>]

New installer for Windows, version 3.2.3.

This addresses the problems identified by Debbie Carraway at NCSU having 
to do with Python 2.4 using registry entries for user (HKCU) rather than 
machine (HKLM) under some circumstances.

It also corrects an error in the helix object (in the constructor, 
specifying an axis whose length was not 1 nevertheless gave you a length 
of 1). This correction is in CVS, but no Linux/Unix package has been 
built yet.

Bruce Sherwood

[Visualpython-users] Re: visualization to animated gif file

[Rob S. <sa...@ph...>]

There was a recent email on this:
http://sourceforge.net/mailarchive/forum.php?thread_id=7474645&forum_id=3591

Basically, you have to get the PIL (Python Imaging Library)
http://www.pythonware.com/products/pil/
and use ImageGrab repeatedly to generate a sequence of .gif files.

From there, you can use something like ImageMagick or
something simpler like "Microsoft GIF Animator" or "Gifsicle"
to make animated gifs. 

rob

RE: [Visualpython-users] visualization to animated gif file

[Arthur <ajs...@op...>]

> -----Original Message-----
> From: vis...@li... [mailto:visualpython-
> 
> Hi all,
> 
> Has anyone tried to convert visualization to an
> animated gif file ?
> If yes, please. I need suggestion how to do it, I want
> to put the visualization on a web server.
> 
> Thx

Yes.

For example the animated gif at :

http://home.netcom.com/~ajs/download.html

The process was essentially using the povexport.py utility, rendering
individual frames in Povray, and using one of the many available utilities
to convert the collection of frames to an animated gif.

Sounds like a PITA. 

But, it is not too difficult to automate a good deal of the process, and it
can be made to be pretty painless.

But I don't know how much detail you are asking for.

Art   

[Visualpython-users] visualization to animated gif file

[Titi A. <tia...@ya...>]

Hi all,

Has anyone tried to convert visualization to an
animated gif file ?
If yes, please. I need suggestion how to do it, I want
to put the visualization on a web server. 

Thx

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

[Visualpython-users] VPython install question, Slackware 10.1

[Eric A. <Ay...@ma...>]

Hello,

I'm having a bit of trouble installing vpython on a Slackware 10.1 box.

I have installed:
     boost 1.32.0 (slackware package)
     gtk+ 2.6.1 (comes with standard install)
     gtkglarea 1.2.3 (slack package)
     Numeric 24.0 (python setup.py install)
     numarray 1.3.3 (python setup.py install)
     python 2.4 (comes with standard install) located at /usr/bin/python

I am using gcc 3.3.4.

Here's what I do:
     $ tar -xjf visual-3.2.1.tar.bz2
     $ mkdir build
     $ cd build
     $ ../visual-3.2.1/configure --prefix=/usr
         (Note -- there is an error on http://vpython.org/ 
linux_download.html: it says "./visual..." (one dot) which could  
cause confusion.)
     $ make
...And here it dies. The last couple lines of build/src/build.log are:

g++ -shared -nostdlib /usr/lib/gcc-lib/i486-slackware-linux/ 
3.3.4/../../../crti.o /usr/lib/gcc-lib/i486-slackware-linux/3.3.4/ 
crtbeginS.o  .libs/arrow.o .libs/axial.o .libs/box.o .libs/ 
color.o .libs/cone.o .libs/convex.o .libs/curve.o .libs/ 
cvisualmodule.o .libs/cylinder.o .libs/display.o .libs/ 
displaylist.o .libs/ellipsoid.o .libs/exceptions.o .libs/ 
num_util.o .libs/scalar_array.o .libs/vector_array.o .libs/ 
slice.o .libs/sphmodel.o .libs/faceset.o .libs/frame.o .libs/ 
gldevice.o .libs/kbobject.o .libs/light.o .libs/label.o .libs/ 
mouseobject.o .libs/prim.o .libs/vector.o .libs/pyramid.o .libs/ 
rate.o .libs/ring.o .libs/sphere.o .libs/tmatrix.o .libs/ 
vcache.o .libs/cylmodel.o .libs/num_util_impl_numeric.o .libs/ 
num_util_impl_numarray.o .libs/platlinux.o .libs/xgl.o  -Wl,--rpath - 
Wl,/usr/lib/. -Wl,--rpath -Wl,/usr/lib/. -L/usr/lib -L/usr/X11R6/lib / 
usr/lib/libgtk.so /usr/lib/libgdk.so /usr/lib/libgmodule.so -ldl - 
lXext -lX11 /usr/lib/libgtkgl.so -lGL /usr/lib/libgthread.so - 
lpthread /usr/lib/libglib.so -lboost_python -L/usr/lib/gcc-lib/i486- 
slackware-linux/3.3.4 -L/usr/lib/gcc-lib/i486-slackware-linux/ 
3.3.4/../../../../i486-slackware-linux/lib -L/usr/lib/gcc-lib/i486- 
slackware-linux/3.3.4/../../.. /usr/lib/./libstdc++.so -lm -lc - 
lgcc_s /usr/lib/gcc-lib/i486-slackware-linux/3.3.4/crtendS.o /usr/lib/ 
gcc-lib/i486-slackware-linux/3.3.4/../../../crtn.o  -Wl,--version- 
script=../../visual-3.2.1/src/linux-symbols.map -Wl,-soname - 
Wl,cvisualmodule.so.1 -o .libs/cvisualmodule.so.1.0.0
/usr/lib/gcc-lib/i486-slackware-linux/3.3.4/../../../../i486- 
slackware-linux/bin/ld: cannot find -lboost_python
collect2: ld returned 1 exit status

I'm stumped. Boost is located at /usr/include/boost, with libraries  
at /usr/lib/libboost_*, if that helps.

Any suggestions?
-EA

Interestingly enough, I had a lab full of Slackware 10.0 boxes with  
vpython. When I updated them to 10.1, it changed the default python  
from 2.3 to 2.4 and broke vpython: but the fix was as simple as:
     # cp -Rup /usr/lib/python2.3/site-packages/* /usr/lib/python2.4/ 
site-packages/

-----------------------------------------------------------------
Dr. Eric Ayars
Assistant Professor of Physics
California State University, Chico
ay...@ma...

Re: [Visualpython-users] VPython install problem & workarounds (Windows)

[<aun...@da...>]

Yesssss!!! That's it!

Thank you.

Reagards, Christoph

Debbie Carraway wrote:
> Hello,
> 
> I noticed in reading the list archives that a few people mentioned an 
> installation problem with VPython under Windows. I encountered this 
> while trying to automate the installs for widespread distribution, and I 
> have found the cause and have some workarounds.
> 
> I'm sorry for the length of this post but I wanted to be sure there's 
> enough detail for folks to be sure they are seeing the same problem 
> before trying the workarounds.
> 
> ---
> 
> VPython depends on Python. The current version of VPython (2.4-3.22b) 
> depends on Python 2.4.1.
> 
> There are problems with both the Python installer and the VPython 
> installer.
> 
> Python installer issue
> ------------------------
> The real problem is with the Python 2.4.1 installer. Python will put the 
> InstallPath registry setting (which indicates where Python is installed) 
>  under HKEY_CURRENT_USER instead of HKEY_LOCAL_MACHINE under some 
> circumstances:
>  (1) if you are not a member of the Administrators group
>  (2) if you choose "Install for Just Me" rather than "Install for All 
> Users",
>  (3) if you automate the Python install using "msiexec.exe /i 
> python-2.4.1.msi /q". The /q (quiet) switch causes different behavior 
> than the defaults with a manual install ("msiexec.exe /i 
> python-2.4.1.msi").
> 
> This is a mistake in the Python installer. The path to an installed 
> application always belongs under HKLM, because the path to installed 
> software is a machine-specific setting. If the path is in HKCU, the 
> InstallPath setting can follow a user to a machine where Python is not 
> installed.
> 
> 
> 
> VPython installer issue
> ------------------------
> The VPython installer looks for the path to Python. The installer *only* 
> looks in HKEY_LOCAL_MACHINE for the InstallPath (specifically,
> HKLM\Software\Python\PythonCore\2.4\InstallPath). This is a reasonable 
> assumption, but doesn't actually work with the Python installer.
> 
> The problem is that the VPython installer does not gracefully handle the 
> situation in which it cannot find the InstallPath for Python, such as 
> when the InstallPath is in HKEY_CURRENT_USER (see "What it looks like 
> when things go wront installing VPython" below). The VPython installer 
> prompts for the path to Python, and then does not seem to be able use it.
> 
> 
> This will result in the following scenario when you try to run the 
> VPython installer:
> 
> 
> What it looks like when things go wrong installing VPython
> --------------------------------------------------------------------
> 1. Start the VPython Installer. Under Windows XP Service Pack 2, you'll 
> be prompted by Windows to run the app because it's from an "Unknown 
> Publisher". Click Run.
>     (It would be helpful if the installer were digitally signed, or if 
> the publisher were not Unknown. But in the interim I've written a little 
> helper called DoRunRun that can be downloaded from 
> http://www.novell.com/coolsolutions/tools/15465.html/ for anyone 
> interested in automating the installation.)
> 
> 2. Click Next to get started. An error message appears. Setup is the 
> title, and the text says "Could not locate where Python 2.4 is 
> installed. You will be asked where to install the VPython extensions." 
> Click OK.
> 
> 3. The dialog box says "Setup will install VPython for Python 2.4 into 
> the following folder." However, no folder is listed. You are prompted 
> for a location. You might try manually entering or browsing to 
> C:\Python24 or C:\Python24\.
> 
> 4. Then there is a second error message, identical to the first.  Setup 
> is the title, and the text says "Could not locate where Python 2.4 is 
> installed. You will be asked where to install the VPython extensions." 
> Click OK.
> 
> 5. You are at the Select Components dialog. Accept the defaults for a 
> full install and click Next.
> 
> 6. Then the Additional Tasks dialog appears. Accept the defaults and 
> click Next.
> 
> 7. You are at the Ready to Install dialog. Click Install. Now you get 
> the final error message. The title is Error, and the text is "You must 
> enter a folder name." Click OK. The installer quits without installing 
> VPython.
> 
> 
> 
> 
> Workarounds
> ------------
> 
> There are three workarounds. All require installing or reinstalling Python.
> 
> (1) Easiest:
> Uninstall Python, and reinstall it as Administrator. Choose the "Install 
> for All Users" option. You should then be able to install VPython.
> 
> 
> (2) Registry hack:
> Manually add both of the following in the registry entries (string values):
> 
> HKEY_LOCAL_MACHINE\Software\Python\PythonCore\2.4\InstallPath\@="C:\Python24" 
> 
> HKEY_LOCAL_MACHINE\Software\Python\PythonCore\2.4\InstallPath\InstallGroup\@="Python 
> 2.4"
> 
> Note: @ is the (Default) value.
> 
>     This is the minimum to get through the VPython install. You should 
> make sure that you get all the Python registry settings, really. You'd 
> probably want to duplicate everything under 
> HKEY_CURRENT_USER\Software\Python in HKEY_LOCAL_MACHINE. The settings 
> under that key really belong under HKLM, not HKCU.
> 
> 
> (3) How to make a silent install of Python that puts its InstallPath 
> settings in HKLM rather than HKCU:
> Specify a property on the command line so that the application is 
> installed for all users. Here's how (case DOES matter):
> "msiexec.exe /i python-2.4.1.msi ALLUSERS=1 /q"
> 
> 
> Regards,
> Debbie Carraway
> 
> -- 
> Debbie Carraway
> Asst. Director, Microcomputer Systems
> Information Technology Division, NC State University
> Voice: 919.515.5498  AIM: DeborahCarraway
> 
> 
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by the 'Do More With Dual!' webinar 
> happening
> July 14 at 8am PDT/11am EDT. We invite you to explore the latest in dual
> core and dual graphics technology at this free one hour event hosted by 
> HP, AMD, and NVIDIA.  To register visit http://www.hp.com/go/dualwebinar
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
> 
> 

Re: [Visualpython-users] VPython install problem & workarounds (Windows)

[<Jim...@no...>]

Thank-you for this wonderfully detailed posting.

Have you considered raising the issues, regarding the Microsoft 
Installer, on comp.lang.python or entering it as a bug?

-- jv

----- Original Message -----
From: Debbie Carraway <deb...@nc...>
Date: Friday, July 8, 2005 9:17 am
Subject: [Visualpython-users] VPython install problem & workarounds 
(Windows)

> Hello,
> 
> I noticed in reading the list archives that a few people mentioned 
> an 
> installation problem with VPython under Windows. I encountered 
> this 
> while trying to automate the installs for widespread distribution, 
> and I 
> have found the cause and have some workarounds.
> 
> I'm sorry for the length of this post but I wanted to be sure 
> there's 
> enough detail for folks to be sure they are seeing the same 
> problem 
> before trying the workarounds.
> 
> ---
> 
> VPython depends on Python. The current version of VPython (2.4-
> 3.22b) 
> depends on Python 2.4.1.
> 
> There are problems with both the Python installer and the VPython 
> installer.
> Python installer issue
> ------------------------
> The real problem is with the Python 2.4.1 installer. Python will 
> put the 
> InstallPath registry setting (which indicates where Python is 
> installed) 
>  under HKEY_CURRENT_USER instead of HKEY_LOCAL_MACHINE under some 
> circumstances:
>  (1) if you are not a member of the Administrators group
>  (2) if you choose "Install for Just Me" rather than "Install for 
> All 
> Users",
>  (3) if you automate the Python install using "msiexec.exe /i 
> python-2.4.1.msi /q". The /q (quiet) switch causes different 
> behavior 
> than the defaults with a manual install ("msiexec.exe /i python-
> 2.4.1.msi").
> This is a mistake in the Python installer. The path to an 
> installed 
> application always belongs under HKLM, because the path to 
> installed 
> software is a machine-specific setting. If the path is in HKCU, 
> the 
> InstallPath setting can follow a user to a machine where Python is 
> not 
> installed.
> 
> 
> 
> VPython installer issue
> ------------------------
> The VPython installer looks for the path to Python. The installer 
> *only* 
> looks in HKEY_LOCAL_MACHINE for the InstallPath (specifically,
> HKLM\Software\Python\PythonCore\2.4\InstallPath). This is a 
> reasonable 
> assumption, but doesn't actually work with the Python installer.
> 
> The problem is that the VPython installer does not gracefully 
> handle the 
> situation in which it cannot find the InstallPath for Python, such 
> as 
> when the InstallPath is in HKEY_CURRENT_USER (see "What it looks 
> like 
> when things go wront installing VPython" below). The VPython 
> installer 
> prompts for the path to Python, and then does not seem to be able 
> use it.
> 
> 
> This will result in the following scenario when you try to run the 
> VPython installer:
> 
> 
> What it looks like when things go wrong installing VPython
> -------------------------------------------------------------------
> -
> 1. Start the VPython Installer. Under Windows XP Service Pack 2, 
> you'll 
> be prompted by Windows to run the app because it's from an 
> "Unknown 
> Publisher". Click Run.
> 	(It would be helpful if the installer were digitally signed, 
or 
> if the 
> publisher were not Unknown. But in the interim I've written a 
> little 
> helper called DoRunRun that can be downloaded from 
> http://www.novell.com/coolsolutions/tools/15465.html/ for anyone 
> interested in automating the installation.)
> 
> 2. Click Next to get started. An error message appears. Setup is 
> the 
> title, and the text says "Could not locate where Python 2.4 is 
> installed. You will be asked where to install the VPython 
> extensions." 
> Click OK.
> 
> 3. The dialog box says "Setup will install VPython for Python 2.4 
> into 
> the following folder." However, no folder is listed. You are 
> prompted 
> for a location. You might try manually entering or browsing to 
> C:\Python24 or C:\Python24\.
> 
> 4. Then there is a second error message, identical to the first.  
> Setup 
> is the title, and the text says "Could not locate where Python 2.4 
> is 
> installed. You will be asked where to install the VPython 
> extensions." 
> Click OK.
> 
> 5. You are at the Select Components dialog. Accept the defaults 
> for a 
> full install and click Next.
> 
> 6. Then the Additional Tasks dialog appears. Accept the defaults 
> and 
> click Next.
> 
> 7. You are at the Ready to Install dialog. Click Install. Now you 
> get 
> the final error message. The title is Error, and the text is "You 
> must 
> enter a folder name." Click OK. The installer quits without 
> installing 
> VPython.
> 
> 
> 
> 
> Workarounds
> ------------
> 
> There are three workarounds. All require installing or 
> reinstalling Python.
> 
> (1) Easiest:
> Uninstall Python, and reinstall it as Administrator. Choose the 
> "Install 
> for All Users" option. You should then be able to install VPython.
> 
> 
> (2) Registry hack:
> Manually add both of the following in the registry entries (string 
> values):
> HKEY_LOCAL_MACHINE\Software\Python\PythonCore\2.4
\InstallPath\@="C:\Python24"
> HKEY_LOCAL_MACHINE\Software\Python\PythonCore\2.4
\InstallPath\InstallGroup\@="Python 
> 2.4"
> 
> Note: @ is the (Default) value.
> 
> 	This is the minimum to get through the VPython install. You 
> should make 
> sure that you get all the Python registry settings, really. You'd 
> probably want to duplicate everything under 
> HKEY_CURRENT_USER\Software\Python in HKEY_LOCAL_MACHINE. The 
> settings 
> under that key really belong under HKLM, not HKCU.
> 
> 
> (3) How to make a silent install of Python that puts its 
> InstallPath 
> settings in HKLM rather than HKCU:
> Specify a property on the command line so that the application is 
> installed for all users. Here's how (case DOES matter):
> "msiexec.exe /i python-2.4.1.msi ALLUSERS=1 /q"
> 
> 
> Regards,
> Debbie Carraway
> 
> --
> Debbie Carraway
> Asst. Director, Microcomputer Systems
> Information Technology Division, NC State University
> Voice: 919.515.5498  AIM: DeborahCarraway
> 
> 
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by the 'Do More With Dual!' webinar 
> happeningJuly 14 at 8am PDT/11am EDT. We invite you to explore the 
> latest in dual
> core and dual graphics technology at this free one hour event 
> hosted by HP, 
> AMD, and NVIDIA.  To register visit http://www.hp.com/go/dualwebinar
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
> 

[Visualpython-users] VPython install problem & workarounds (Windows)

[Debbie C. <deb...@nc...>]

Hello,

I noticed in reading the list archives that a few people mentioned an 
installation problem with VPython under Windows. I encountered this 
while trying to automate the installs for widespread distribution, and I 
have found the cause and have some workarounds.

I'm sorry for the length of this post but I wanted to be sure there's 
enough detail for folks to be sure they are seeing the same problem 
before trying the workarounds.

---

VPython depends on Python. The current version of VPython (2.4-3.22b) 
depends on Python 2.4.1.

There are problems with both the Python installer and the VPython installer.

Python installer issue
------------------------
The real problem is with the Python 2.4.1 installer. Python will put the 
InstallPath registry setting (which indicates where Python is installed) 
  under HKEY_CURRENT_USER instead of HKEY_LOCAL_MACHINE under some 
circumstances:
  (1) if you are not a member of the Administrators group
  (2) if you choose "Install for Just Me" rather than "Install for All 
Users",
  (3) if you automate the Python install using "msiexec.exe /i 
python-2.4.1.msi /q". The /q (quiet) switch causes different behavior 
than the defaults with a manual install ("msiexec.exe /i python-2.4.1.msi").

This is a mistake in the Python installer. The path to an installed 
application always belongs under HKLM, because the path to installed 
software is a machine-specific setting. If the path is in HKCU, the 
InstallPath setting can follow a user to a machine where Python is not 
installed.



VPython installer issue
------------------------
The VPython installer looks for the path to Python. The installer *only* 
looks in HKEY_LOCAL_MACHINE for the InstallPath (specifically,
HKLM\Software\Python\PythonCore\2.4\InstallPath). This is a reasonable 
assumption, but doesn't actually work with the Python installer.

The problem is that the VPython installer does not gracefully handle the 
situation in which it cannot find the InstallPath for Python, such as 
when the InstallPath is in HKEY_CURRENT_USER (see "What it looks like 
when things go wront installing VPython" below). The VPython installer 
prompts for the path to Python, and then does not seem to be able use it.


This will result in the following scenario when you try to run the 
VPython installer:


What it looks like when things go wrong installing VPython
--------------------------------------------------------------------
1. Start the VPython Installer. Under Windows XP Service Pack 2, you'll 
be prompted by Windows to run the app because it's from an "Unknown 
Publisher". Click Run.
	(It would be helpful if the installer were digitally signed, or if the 
publisher were not Unknown. But in the interim I've written a little 
helper called DoRunRun that can be downloaded from 
http://www.novell.com/coolsolutions/tools/15465.html/ for anyone 
interested in automating the installation.)

2. Click Next to get started. An error message appears. Setup is the 
title, and the text says "Could not locate where Python 2.4 is 
installed. You will be asked where to install the VPython extensions." 
Click OK.

3. The dialog box says "Setup will install VPython for Python 2.4 into 
the following folder." However, no folder is listed. You are prompted 
for a location. You might try manually entering or browsing to 
C:\Python24 or C:\Python24\.

4. Then there is a second error message, identical to the first.  Setup 
is the title, and the text says "Could not locate where Python 2.4 is 
installed. You will be asked where to install the VPython extensions." 
Click OK.

5. You are at the Select Components dialog. Accept the defaults for a 
full install and click Next.

6. Then the Additional Tasks dialog appears. Accept the defaults and 
click Next.

7. You are at the Ready to Install dialog. Click Install. Now you get 
the final error message. The title is Error, and the text is "You must 
enter a folder name." Click OK. The installer quits without installing 
VPython.




Workarounds
------------

There are three workarounds. All require installing or reinstalling Python.

(1) Easiest:
Uninstall Python, and reinstall it as Administrator. Choose the "Install 
for All Users" option. You should then be able to install VPython.


(2) Registry hack:
Manually add both of the following in the registry entries (string values):

HKEY_LOCAL_MACHINE\Software\Python\PythonCore\2.4\InstallPath\@="C:\Python24"
HKEY_LOCAL_MACHINE\Software\Python\PythonCore\2.4\InstallPath\InstallGroup\@="Python 
2.4"

Note: @ is the (Default) value.

	This is the minimum to get through the VPython install. You should make 
sure that you get all the Python registry settings, really. You'd 
probably want to duplicate everything under 
HKEY_CURRENT_USER\Software\Python in HKEY_LOCAL_MACHINE. The settings 
under that key really belong under HKLM, not HKCU.


(3) How to make a silent install of Python that puts its InstallPath 
settings in HKLM rather than HKCU:
Specify a property on the command line so that the application is 
installed for all users. Here's how (case DOES matter):
"msiexec.exe /i python-2.4.1.msi ALLUSERS=1 /q"


Regards,
Debbie Carraway

--
Debbie Carraway
Asst. Director, Microcomputer Systems
Information Technology Division, NC State University
Voice: 919.515.5498  AIM: DeborahCarraway

Re: [Visualpython-users] Apple's gcc 3.3

[Jonathan B. <jbr...@ea...>]

On Tue, 2005-07-05 at 13:37 -0400, Joe Heafner wrote:
> I'm trying very hard to build visual 3.2.1 (from Sourceforge) under  
> Mac OS X 10.4.1 but I'm having difficulties. Will Apple's gcc 3.3 as  
> supplied with 10.4 work?

I haven't had a chance to look at our 10.4 machine yet, but I should be
able to soon.  It will definitely not work with the gcc 3.3 found in
10.3.

-Jonathan

[Visualpython-users] Apple's gcc 3.3

[Joe H. <hea...@ct...>]

I'm trying very hard to build visual 3.2.1 (from Sourceforge) under  
Mac OS X 10.4.1 but I'm having difficulties. Will Apple's gcc 3.3 as  
supplied with 10.4 work?

Joe Heafner
heafnerj(at)ctc(dot)net

[Visualpython-users] VisualPython over the web

[Bruce P. <bap...@te...>]

I don't think the bandwidth is enough for running and controlling a Visual 
Python program over the Internet. I've used VNC (a program for remotely 
running another computer) to run a visual python program over a 100 Mbs 
network with less than satisfactory results. There was enough lag in the 
controls that the usual Visual Python operations (rotation, zoom) were 
basically useless ( you always ended up overshooting the desired result). 
Visual Python over the net might work if you didn't want control -- but 
then you'd be better off dumping the animation to an animated GIF file 
which is supported by most browsers. VRML would be the next step up -- 
giving the user some control of viewpoint.



At 08:23 PM 7/2/2005, you wrote:
>Message: 1
>Date: Fri, 1 Jul 2005 21:39:19 -0700 (PDT)
>From: Titi Anggono <tia...@ya...>
>Subject: RE: [Visualpython-users] to show visualization in a web page
>To: vis...@li...
>
>I was told to try using VRML, and I have found VRML
>export for vpython at
>http://www.andrew.cmu.edu/user/mzk/vrmlexport/
>
>Have somebody tried using this tool ?
>And i think, the web browser will need plug in, isn't
>it ?

RE: [Visualpython-users] to show visualization in a web page

[Titi A. <tia...@ya...>]

I was told to try using VRML, and I have found VRML
export for vpython at
http://www.andrew.cmu.edu/user/mzk/vrmlexport/

Have somebody tried using this tool ?
And i think, the web browser will need plug in, isn't
it ?

--- "Kuzminski, Stefan R" <SKu...@fa...>
wrote:

> Jython is a Java only solution, so most of VPython (
> parts in C ) and
> supporting libraries ( numarray ) would not be
> available.  A quick and
> dirty way to be able to distribute a VPython program
> to a web-surfer
> would be to use the MacMillian installer to build a
> stand alone
> executable, that the user then clicks on a link to
> download and run.  Of
> course the exe would be several meg and would not
> run in the browser but
> in a separate window.
> 


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
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Re: [Visualpython-users] building against python24

[Martin C. <cos...@wa...>]

Joe Heafner wrote:
> Can the current Sourceforge visual-3.2.1 package be built against  
> python24 from Fink?

I don't see why not, if you manage to get all the build requisites 
compiled. There is no Fink package for recent versions of visual, and 
unless I suddenly find a lot of time on my hands this will remain so, 
until the boost people get their act together and produce a version that 
builds python libs with a standard compiler. I refuse to make a Fink 
package for visual that first needs to compile a special old version of 
gcc just to make a boost python lib.

-- 
Martin

[Visualpython-users] building against python24

[Joe H. <hea...@ct...>]

Can the current Sourceforge visual-3.2.1 package be built against  
python24 from Fink?

Joe Heafner
heafnerj(at)ctc(dot)net

Re: [Visualpython-users] Help with SciPy

[Gary P. <gp...@ri...>]

I'll bet you're using python 2.4

I'm still using 2.3 for exactly one reason:  there are Windows binaries 
available for scipy.  Not yet for 2.4, although someone over there said 
that they should be arriving a a few weeks.

Bruce says he has coexisting 2.4 and 2.3 on a Windows box.  I haven't 
had the guts to try it.

If you want to compile for  2.4, I might be able to help you.  I have 
tried to compile for Windows.  I got distracted before I succeeded, but 
I was close.  Probably better to join the discussion group SciPy-user.  
The people on that group are just incredibly responsive.  Solutions to 
problems are usually posted within minutes.  Many problems are 
installation problems on various platforms.

Easier:  use python 2.3, use binaries.  Two paths:  use the installer on 
thier website.  Even easier: install the Enthon Edition of python
( http://www.enthought.com/downloads/downloads.htm#download ),
and you will automatically get scipy and *lots* of other goodies.  
(Assumes an ocean of empty disk space.)  The Enthon edition is a 
one-click install. 

And you are right: compiling on Windows is not for the novice or faint 
of heart.  BTW, plenty of people have had no problem with their 
instructions.  Apparantly, it does work.  I've not been one of the 
fortunate ones :)

FWIW, I think scipy is fabulous.

You can contact me off-line, but warning: Friday p.m. I'm going out of 
town for about 10 days.

-gary

Rodney Dunning wrote:

>Colleagues,
>
>I'm curious if anyone is using the SciPy package, and if so, how did
>you get it set up?  I'm trying to learn how to wrap C and/or Fortran
>(with f2py, for example) routines in my Python code to achieve a
>performance boost, but I can't even get the libraries installed
>correctly.  The documentation at SciPy.org looks like it's written for
>experts.  I can't understand it.  I don't think I'm stupid, but maybe
>I am.  I've completely removed my Python installation twice to start
>from scratch, but in the end I get strange errors I can't interpret.
>
>It seems everyone is using this package, so it can't be that hard to install.
>
>Can anyone give me some help?  If anyone would be willing to contact
>me off-list and walk me through the process of getting f2py, weave,
>etc. ready to go, I would really appreciate it.
>
>I'm attempting to build the libraries on a standard Windows-XP
>machine.  Thank you.
>
>--
>Rodney Dunning
>Assistant Professor of Physics
>Birmingham-Southern College
>
>
>-------------------------------------------------------
>SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
>from IBM. Find simple to follow Roadmaps, straightforward articles,
>informative Webcasts and more! Get everything you need to get up to
>speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id492&op=click
>_______________________________________________
>Visualpython-users mailing list
>Vis...@li...
>https://lists.sourceforge.net/lists/listinfo/visualpython-users
>
>  
>

[Visualpython-users] Help with SciPy

[Rodney D. <rod...@gm...>]

Colleagues,

I'm curious if anyone is using the SciPy package, and if so, how did
you get it set up?  I'm trying to learn how to wrap C and/or Fortran
(with f2py, for example) routines in my Python code to achieve a
performance boost, but I can't even get the libraries installed
correctly.  The documentation at SciPy.org looks like it's written for
experts.  I can't understand it.  I don't think I'm stupid, but maybe
I am.  I've completely removed my Python installation twice to start
from scratch, but in the end I get strange errors I can't interpret.

It seems everyone is using this package, so it can't be that hard to instal=
l.

Can anyone give me some help?  If anyone would be willing to contact
me off-list and walk me through the process of getting f2py, weave,
etc. ready to go, I would really appreciate it.

I'm attempting to build the libraries on a standard Windows-XP
machine.  Thank you.

--
Rodney Dunning
Assistant Professor of Physics
Birmingham-Southern College

[Visualpython-users] Need some help with SciPy

[Rodney D. <rod...@gm...>]

Colleagues,

I'm curious if anyone is using the SciPy package, and if so, how did
you get it set up?  I'm trying to learn how to wrap C and/or Fortran
(with f2py, for example) routines in my Python code to achieve a
performance boost, but I can't even get the libraries installed
correctly.  The documentation at SciPy.org looks like it's written for
experts.  I can't understand it.  I don't think I'm stupid, but maybe
I am.  I've completely removed my Python installation twice to start
from scratch, but in the end I get strange errors I can't interpret.

It seems everyone is using this package, so it can't be that hard to instal=
l.

Can anyone give me some help?  If anyone would be willing to contact
me off-list and walk me through the process of getting f2py, weave,
etc. ready to go, I would really appreciate it.

I'm attempting to build the libraries on a standard Windows-XP
machine.  Please respond to rdu...@bs....  Thank you.

--
Rodney Dunning
Assistant Professor of Physics
Birmingham-Southern College

RE: [Visualpython-users] to show visualization in a web page

[Kuzminski, S. R <SKu...@fa...>]

Jython is a Java only solution, so most of VPython ( parts in C ) and
supporting libraries ( numarray ) would not be available.  A quick and
dirty way to be able to distribute a VPython program to a web-surfer
would be to use the MacMillian installer to build a stand alone
executable, that the user then clicks on a link to download and run.  Of
course the exe would be several meg and would not run in the browser but
in a separate window.

S

-----Original Message-----
From: vis...@li...
[mailto:vis...@li...] On Behalf Of
Gary
Sent: Thursday, June 30, 2005 12:25 PM
To: vis...@li...
Subject: Re: [Visualpython-users] to show visualization in a web page

While we're brainstorming about web pages and native OSX, let me toss in

JPython.  I've now entered territory I know nothing about.  But if=20
vpython were to work under JPython, wouldn't that cover the web app
issue?

Yours in ingnorance,
gary



-------------------------------------------------------
SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
from IBM. Find simple to follow Roadmaps, straightforward articles,
informative Webcasts and more! Get everything you need to get up to
speed, fast. =
http://ads.osdn.com/?ad_id=3D7477&alloc_id=3D16492&op=3Dclick
_______________________________________________
Visualpython-users mailing list
Vis...@li...
https://lists.sourceforge.net/lists/listinfo/visualpython-users

Re: [Visualpython-users] to show visualization in a web page

[Gary <pa...@in...>]

While we're brainstorming about web pages and native OSX, let me toss in 
JPython.  I've now entered territory I know nothing about.  But if 
vpython were to work under JPython, wouldn't that cover the web app issue?

Yours in ingnorance,
gary

Re: [Visualpython-users] to show visualization in a web page

[Dethe E. <de...@li...>]

There are web plugins for X3D (an XML-based 3D modelling language, =20
the successor to VRML), so VPython could conceivably export to X3D =20
the way it does to POVRay.  You would lose any custom Python =20
interactivity (unless it was recoded in Javascript and X3D), but have =20=

basic X3D interactivity (grab, walk, fly, if I recall correctly).

I don't know of any X3D exporters at this time, but I would expect it =20=

to be easier than porting VPython to a plugin.

--Dethe

On 30-Jun-05, at 7:25 AM, Flavio Coelho wrote:

> 2005/6/30, Jonathan Brandmeyer <jbr...@ea...>:
>
>>
>> On Wed, 2005-06-29 at 23:21 -0700, Anton Sherwood wrote:
>>
>>> Titi Anggono wrote:
>>>
>>>> I have a physics visualization using vpython. I just
>>>> curios to show it in a web page. I want when a visitor
>>>> clicks this file, a web browser will execute the
>>>> program and generate the visualization.
>>>>
>>
>> Starting your script from a web page shouldn't be a problem , see =20
>> cherrypy
>>
> (www.cherrypy.org <http://www.cherrypy.org>) for a web application
> framework, see also snakelets (www.snakelets.org <http://=20
> www.snakelets.org>).
> your main chalenge will be to get the output of vpython in a format =20=

> that can
> be visualized through a web-browser: animated gif, mpg perhaps?
> In any case, I believe, interactivity such as we heve in the standard
> vpython canvas, would be out of the question.
>
> I hope someone in vpython development team will correct if I am =20
> wrong. It
> would be really good to have a way to integrate vpython into a web
> application.
>
>
>
> --=20
> Fl=E1vio Code=E7o Coelho
> registered Linux user # 386432
> ---------------------------
> Great spirits have always found violent opposition from =20
> mediocrities. The
> latter cannot understand it when a man does not thoughtlessly =20
> submit to
> hereditary prejudices but honestly and courageously uses his =20
> intelligence.
> Albert Einstein
>


"Why is Virtual Reality always posited in terms of space, when time =20
is the only real commodity left?" --Rich Gold