Re: [Visualpython-users] a new Linux install solution for Visual Python

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

It doesn't really matter whether you write to me or to the old mailing
list, since we're probably the only people viewing that mailing list.

I guess I muddied the waters by trying wxPython 2.9.5, which I think you
had mentioned. Like 2.9.4, it does require a patch, with I've included in
the VPython repository. See the updated INSTALL.txt file:

https://github.com/BruceSherwood/vpython-wx/blob/master/INSTALL.txt

I used 2.9.5 partly because it's now the version available at wxpython.org,
and I wanted to make sure VPython works with it. On 64-bit Ubuntu 12.04 I
didn't see your bug with 2.9.4 and I don't see it with 2.9.5. No one else
has reported your bug (which doesn't prove that they wouldn't see the bug
if they tried your example, of course).

I don't know anything about gmane but would be happy to make the
connection. How would I do that?

Bruce


On Sat, Oct 12, 2013 at 3:11 AM, pataphor <pat...@gm...> wrote:

> On 10/12/2013 07:37 AM, Bruce Sherwood wrote:
> > I did a fresh build from source of VPython 6.05 on Ubuntu 12.04, using
> > wxPython 2.9.5. The example programs opacity-test1.py and
> opacity-test4.py
> > run correctly (fully opaque), as expected. The only possible explanation
> > has to be the graphics driver, yet this explanation seems to be ruled out
> > by the box being opaque with VPython 5.12. ?????
>
> Thank you for testing my script. Since we're now on the public mailing
> list I'll just copy it here for those who are reading:
>
> """
> from visual import *
> import itertools
>
> scene.range = 3
> scene.background = .5,.5,.5
> scene.forward = 1,-1,-1
>
> A,B,C,D,E,F,G,H = itertools.product([-1,1],[-1,1],[-1,1])
>
> data ={(A,B,D,A,D,C) : color.red, (A,C,G,A,G,E) : color.green,
>              (A,E,F,A,F,B) : color.blue, (H,G,C,H,C,D) : color.white,
>              (H,D,B,H,B,F) : color.yellow, (H,F,E,H,E,G) : color.orange}
>
> for P,C in data.items():
>      faces(pos = P, color = C, normal = [1,1,1])
>
> sphere(color = color.yellow, radius = .5, normal = [1,1,1])
> """
>
> On my vPython 6.5 installation this results in the sphere being visible
> even if it is completely inside the colored box.
>
> Another possible explanation, apart from your idea that this could be
> caused by my graphic drivers, is I built it with wxPython 2.9.4.0, with
> the patch that can be found here:
>
> http://sourceforge.net/projects/wxpython/files/wxPython/2.9.4.0/
>
> While you built it with wxPython 2.9.5.0, which doesn't seem to need a
> patch.
>
> So I tried downloading the new version, and built wxPython 2.9.5.0 with
> the command:
>
> sudo python2.7 build-wxpython.py --build_dir=../bld
>
> and this succeeded.
>
> However, when I next tried to install wxPython 2.9.5.0 with the command:
>
> sudo python2.7 build-wxpython.py --build_dir=../bld --install
>
> This fails with a python traceback. (this same command succeeded in the
> corresponding wxPython 2.9.4.0 directory)
>
> After inspecting the relevant parts of the the traceback:
>
> Traceback (most recent call last):
>    File "build-wxpython.py", line 378, in <module>
>      wxbuild.main(wxscript, build_options)
>    File
> "/home/xxxx/src/wxPython-src-2.9.5.0/build/tools/build-wxwidgets.py",
> line 485, in main
>      wxBuilder.install(dir=buildDir, options=extra)
>    File "/home/xxxx/src/wxPython-src-2.9.5.0/build/tools/builder.py",
> line 134, in install
>      args.extend(options)
> TypeError: 'NoneType' object is not iterable
>
> and looking this up in the referenced python file build-wxwidgets.py
> I see this code around line 485:
>
>      if options.install:
>          extra=None
>          if installDir:
>              extra = ['DESTDIR='+installDir]
>          wxBuilder.install(dir=buildDir, options=extra)
>
> it seems that if installDir is false (and the empty string is false in
> python!), extra remains to be None.
>
> This seems to be a bug in wxPython 2.9.5.0, or maybe there is something
> wrong with my system. I tried to get feedback about this on freenode IRC
> in the wxPython channel but there was no one active at that time.
>
> Then I looked up the wxPython user group on gmane. Incidentally, I
> noticed that even though they are using google groups, they still are
> synced to gmane. Maybe this is also a good idea for the vPython user group?
>
> Meanwhile, I have two other options for exploring this possibility, that
> the opacity difference could be caused by different wxPython versions,
> one is to subscribe to the wxPython mailing list/google groups/gmane
> interface and ask about the possible bug in wxPython there, and the
> other is to just look at my list of installed files from 2.9.4.0 and
> copy over the corresponding files from 2.9.5.0 manually.
>
> I'm curious about whether you also had this traceback, and if not, why not?
>
> P.
>
>
>
>
>
>
>
>
>
>
> ------------------------------------------------------------------------------
> October Webinars: Code for Performance
> Free Intel webinars can help you accelerate application performance.
> Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most
> from
> the latest Intel processors and coprocessors. See abstracts and register >
> http://pubads.g.doubleclick.net/gampad/clk?id=60134071&iu=/4140/ostg.clktrk
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>