visualpython-users

[Visualpython-users] rpm for redhat 7.1

[Karsten W. J. <kw...@fy...>]

Does anybody know if there is vpython rpm which works with redhat 7.1?
Or is it possible to do a compilation from scratch?

I tried to install the package python-visual-2001.01.22-2.i386.rpm on my
system and got the information that it requires "libgtkgl.so.4".

This can be provided by gtkglarea-1.2.1-1.i386.rpm which I installed
(The most up to date version
of this package which I found (gtkglarea-1.2.2-4.i386.rpm) provides
libgtkgl.so.5 and cannot be used).

After installation of gklarea and python-visual I get the following
mesage when I try to import visual:

>>> from visual import *
Visual-2000-11-26
Traceback (innermost last):
  File "<stdin>", line 1, in ?
  File "/usr/lib/python1.5/site-packages/visual/__init__.py", line 17,
in ?
    import cvisual
ImportError: /usr/lib/libgtkgl.so.4: undefined symbol: glXUseXFont

Any help would be appreciated.

Best regards,
Karsten.


-- 
Karsten W. Jacobsen, Professor
CAMP, Dept. of Physics, Building 307, DTU, DK-2800 Lyngby, Denmark
Phone: +45 45 25 31 86  Fax: +45 45 93 23 99
E-mail: kw...@fy...; WWW: http://www.fysik.dtu.dk/~kwj

Re: [Visualpython-users] rpm for redhat 7.1

[David A. <dm...@an...>]

I've been wanting to build an RPM for RedHat 7.1 but have been held up by a 
serious bug which causes several of the demo programs to segfault.

If you speak CVS, you can get the complete source for VPython from 
www.sourceforge.org and compile it yourself - but you'll almost certainly 
get the same bug.

[Visualpython-users] Bug on redhat 7.1

[David A. <dm...@an...>]

On the off chance that someone has an insight:

I've been wanting to build an RPM for RedHat 7.1 but have been held up by a 
difficult bug that affects several of the demo programs.

The following short VPython program segfaults:

from visual import *
value = 1.0
pos = vector(-1.01475,0.0876125,0)
axis = vector(0,1,0)
value = value*dot(pos,axis)

The following code in "getattr_methods" crashes deep in the "throw" 
machinery:

virtual Object getattr_methods( const char *_name )
		{
		STD::string name( _name );

		method_map_t &mm = methods();

		if( name == "__methods__" )
			{
			List methods;

			for( method_map_t::iterator i = mm.begin(); i != mm.end(); ++i )
				methods.append( String( (*i).first ) );

			return methods;
			}

		// see if name exists
		if( mm.find( name ) == mm.end() )
			throw AttributeError( name );


#0  0x4008b801 in __kill () from /lib/i686/libc.so.6
#1  0x4002e61b in raise (sig=6) at signals.c:65
#2  0x4008cd82 in abort () at ../sysdeps/generic/abort.c:88
#3  0x4087d9dc in __cxxabiv1::__terminate(void (*)()) ()
   from /usr/lib/libstdc++.so.3
#4  0x4087d8cf in __gxx_personality_v0 () from /usr/lib/libstdc++.so.3
#5  0x408d1fd7 in _Unwind_GetTextRelBase () from /lib/libgcc_s.so.1
#6  0x408d210e in _Unwind_RaiseException () from /lib/libgcc_s.so.1
#7  0x4087db54 in __cxa_throw () from /usr/lib/libstdc++.so.3
#8  0x40286772 in Py::PythonExtension<Vector>::getattr_methods(char const*) 
(
    this=0x80e7ed0, _name=0x401a8bb0 "__array__")
    at CXX/Include/CXX_Extensions.h:578
#9  0x402596ee in Vector::getattr(char const*) (this=0x80e7ed0,
    attr=0x401a8bb0 "__array__") at pvector.cpp:250
#10 0x40262ea9 in Py::PythonType::getattr_handler(_object*, char*) (
    self=0x80e7ed4, name=0x401a8bb0 "__array__")
    at CXX/Src/cxx_extensions.cxx:357
#11 0x0807db0e in PyObject_GetAttrString () at eval.c:41
#12 0x0807db3f in PyObject_HasAttrString () at eval.c:41
#13 0x401a4512 in array_fromobject (op_in=0x80e7ed4, type=12, min_depth=0,
    max_depth=0, flags=0) at ./Src/arrayobject.c:1723
#14 0x401a48a1 in PyArray_FromObject (op=0x80e7ed4, type=12, min_depth=0,
    max_depth=0) at ./Src/arrayobject.c:1797
#15 0x40196659 in array_array (ignored=0x0, args=0x80bae08, kws=0x80e8280)
    at ./Src/multiarraymodule.c:883
#16 0x080557e2 in PyEval_CallObjectWithKeywords () at eval.c:41
#17 0x080556be in PyEval_CallObjectWithKeywords () at eval.c:41
#18 0x080544e0 in PyEval_EvalCode () at eval.c:41
#19 0x08054399 in PyEval_EvalCode () at eval.c:41
#20 0x08054399 in PyEval_EvalCode () at eval.c:41
#21 0x08054399 in PyEval_EvalCode () at eval.c:41
#22 0x08054399 in PyEval_EvalCode () at eval.c:41
#23 0x080521b5 in PyEval_EvalCode () at eval.c:41
#24 0x08065785 in PyRun_File () at eval.c:41
#25 0x08064d00 in PyRun_SimpleFile () at eval.c:41
#26 0x080648fb in PyRun_AnyFile () at eval.c:41
#27 0x080502c4 in Py_Main () at eval.c:41
#28 0x0804fc73 in main () at eval.c:41
#29 0x4007a177 in __libc_start_main (main=0x804fc54 <main>, argc=2,
---Type <return> to continue, or q <return> to quit---
    ubp_av=0xbffffadc, init=0x804f1ec <_init>, fini=0x8096a1c <_fini>,
    rtld_fini=0x4000e184 <_dl_fini>, stack_end=0xbffffacc)
    at ../sysdeps/generic/libc-start.c:129

Re: [Visualpython-users] rpm for redhat 7.1

[Randall A. J. <Ran...@gs...>]

Which demos fail under RH 7.1?
I recently compiled/installed under RH 7.1 and I haven't had a problem,
things seem to work.  I don't think I've exhaustively tested all the
demos/features though.  I'll do that and let you know if things work.

Randy
-- 

David Andersen wrote:
> 
> I've been wanting to build an RPM for RedHat 7.1 but have been held up by a
> serious bug which causes several of the demo programs to segfault.
> 
> If you speak CVS, you can get the complete source for VPython from
> www.sourceforge.org and compile it yourself - but you'll almost certainly
> get the same bug.
> 
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> http://lists.sourceforge.net/lists/listinfo/visualpython-users

Re: [Visualpython-users] rpm for redhat 7.1

[David A. <dm...@an...>]

Try the following short test program (extracted from colorsliders.py if I 
remember correctly)

from visual import *
value = 1.0
pos = vector(-1.01475,0.0876125,0)
axis = vector(0,1,0)
value = value*dot(pos,axis)

Re: [Visualpython-users] rpm for redhat 7.1

[Randall A. J. <Ran...@gs...>]

Sure enough, it seg faults under RH 7.1.

Let me see if I have the details correct.
dot is provided by Numeric, vector is provided by visual.
so the following code should break as well.
--
from visual import *
dot(vector(0,0,0),vector(0,0,0))
--

and this is equivalent to:
--
import visual
import Numeric
Numeric.dot(visual.vector(0,0,0),visual.vector(0,0,0))
--

But... this code works; passing tuples to dot instead of vectors.
--
from visual import *
dot((0,0,0),(0,0,0))
--

It seems that Numeric.dot is not happy with visual.vector arguments.
How much investigation has been done into the bug?

Randy
--

David Andersen wrote:
> 
> Try the following short test program (extracted from colorsliders.py if I
> remember correctly)
> 
> from visual import *
> value = 1.0
> pos = vector(-1.01475,0.0876125,0)
> axis = vector(0,1,0)
> value = value*dot(pos,axis)

-- 
__________________________________________________________________
   Scientific Visualization Studio                         

     _/_/_/_/ _|    _/ _/_/_/_/  NASA Goddard Space Flight Center
    _/        _|   _/ _/        Code 935           301-286-2239
   _/_/_/_/   _|  _/ _/_/_/_/  Randall A. Jones           GST
        _/    _| _/       _/  Ran...@gs...
 _/_/_/_/     _|_/ _/_/_/_/  http://svs.gsfc.nasa.gov
__________________________________________________________________

Re: [Visualpython-users] rpm for redhat 7.1

[David A. <dm...@an...>]

>How much investigation has been done into the bug?

I've stepped thru the code a few times, but I don't yet claim to have any 
understanding of what is going on....

Note that things work fine on Windows and on Debian.

Re: [Visualpython-users] rpm for redhat 7.1

[Ari H. <ahe...@an...>]

On Sun, Aug 26, 2001 at 08:48:20AM -0400, David Andersen wrote:
> >How much investigation has been done into the bug?
> 
> I've stepped thru the code a few times, but I don't yet claim to have any 
> understanding of what is going on....
> 
> Note that things work fine on Windows and on Debian.

<sigh> indeed it does work on Debian :)

I wish I could be more useful in debugging this one ...




Ari

[Visualpython-users] RPM for redhat 7.1

[David A. <dm...@an...>]

I've built an RPM package for RedHat 7.1 and put it on the Web site.

Re: [Visualpython-users] RPM for redhat 7.1

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

David Andersen wrote:
> I've built an RPM package for RedHat 7.1 and put it on the Web site.

Thanks!  I'll try to test it later today.

-- 

Dethe Elza (de...@bu...)
Chief Mad Scientist
Burning Tiger Technologies (http://burningtiger.com)
Living Code Weblog (http://livingcode.ca)

Re: [Visualpython-users] RPM for redhat 7.1

[Ari H. <ahe...@an...>]

On Tue, Aug 28, 2001 at 01:05:57PM -0400, David Andersen wrote:
> I've built an RPM package for RedHat 7.1 and put it on the Web site.

Does this mean that the bug is solved?



Ari

Re: [Visualpython-users] RPM for redhat 7.1

[David A. <dm...@an...>]

Yes.  To my considerable chagrin I realized I must have mis-run one of the 
early experiments (probably by forgetting to do the "make install" or to 
copy cvisualmodule to site-packages).

Replacing the getattr_methods call in pvector/getattr does solve the 
problem.

Re: [Visualpython-users] RPM for redhat 7.1

[Michael Katz-H. <mi...@go...>]

Can you post a src rpm?

I get the following dependency errors...

libgcc_s.so.1   is needed by visual-20010828-3
libgtkgl.so.5   is needed by visual-20010828-3
libstdc++.so.3   is needed by visual-20010828-3

I guess the gcc and stdc++ are version 3.0 which is not installed on any
major distrib. yet.

-Michael

On Wed, 29 Aug 2001, David Andersen wrote:

> Yes.  To my considerable chagrin I realized I must have mis-run one of the
> early experiments (probably by forgetting to do the "make install" or to
> copy cvisualmodule to site-packages).
>
> Replacing the getattr_methods call in pvector/getattr does solve the
> problem.
>
>
>
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> http://lists.sourceforge.net/lists/listinfo/visualpython-users
>

-- 
/-------------------------------------------------------------\
| Michael Katz-Hyman	                  mz...@an... |
| Pittsburgh, PA USA 	       http://www.andrew.cmu.edu/~mzk |
\-------------------------------------------------------------/

[Visualpython-users] Macintosh update

[David A. <dm...@an...>]

I've updated the Macintosh version of Visual Python on our Web site.