PyOpenGL without SetupTools

seb.haase at gmail.com seb.haase at gmail.com
Mon Oct 1 15:19:19 CEST 2007



Are there PyOpenGL 2.0 (I guess 2.0.1.09 is goood)  binaries available
for Python 2.5 ? Anywhere ?

Thanks for the reply

-Sebastian Haase

On Oct 1, 11:49 am, Carl Banks <pavlovevide... at gmail.com> wrote:
> On Oct 1, 4:04 am, seb.ha... at gmail.com wrote:
>
>
>
> > Hi,
> > I am distributing a package with a precompiled collection of modules
> > and packages useful for Python based medical/biological/astronomical
> > image analysis and algorithm development. (Codename: Priithon).
> > For Priithon I put all modules/packages in a simple / single directory
> > (tree) including one starting batch/script file. This script sets up
> > PYTHONPATH to find modules at this place.
> > It works fine for Windows,Linux and Mac-OSX.
>
> > Now I want to upgrade everything to Python 2.5  and thought it might
> > be time get PyOpengl version 3 (aka. pyOpengl-ctypes).
>
> > The problem at hand is now that PyOpenGL  uses "all this setup-tools
> > machinery" just to initialize the formathandlers for the different
> > ways to deal with arrays. (I really need only numpy support !)
> > This is done via the pkg_resources mechanism called "entry_points".
>
> > Can I include a simple non-system-install of pkg_resources that makes
> > at least the entry_point stuff work ?  Where do I put pyOpenGL's
> > "entry_points.txt"  file ?
>
> The simple answer is "don't bother with PyOpenGL-ctypes if you don't
> have to".  Besides the hassles with binary packaging, it's quite a bit
> slower then PyOpenGL 2.0.
>
> Anyways, when I saw that I couldn't easily figure out how to register
> a setuptools package by hand (the point you seem to be at now), I
> resorted to using the same hack that setuptools uses to register its
> packages.  Setuptools puts a pth file, something like
> "ezsetup_XXXX.pth", in the site-packages directory.  The file has a
> couple lines of Python code that mark the start and end of the eggs on
> sys.path; then they call setuptools to postprocess and register the
> eggs.
>
> What I did was to duplicate the effect of these lines in my main
> script.  I don't have it in front of me, but it was something along
> these lines:
>
>     sys.__eggindex = len(sys.path)
>     sys.path.append("OpenGL-cytpes-3.0.0a7-whatever.egg")
>     setuptools.register_packages()
>
> I copied the OpenGL egg to my distro directory, and it worked.
>
> Another possibility is to do it the "setuptools" way: by not packaging
> PyOpenGL 3.0 at all, and instead marking it as a dependency.  Then,
> setuptools will helpfully download it for the user.  (Personally, I
> hate that scripts can recklessly download and install stuff into your
> site packages without even asking; seems like a possible security hole
> as well.)  But it's an option.
>
> Carl Banks





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