Ondrej Certik wrote:
> On Dec 10, 2007 11:03 PM, David Joyner <[EMAIL PROTECTED]> wrote:
>> On Dec 10, 2007 4:58 PM, William Stein <[EMAIL PROTECTED]> wrote:
>>> On Dec 10, 2007 1:39 PM, David Joyner <[EMAIL PROTECTED]> wrote:
>>>> The plots look really nice. Thanks for posting this.
>>>> Since pyglet depends on it, I'm curious what people think of opengl.
>>> Try this in Sage right now.  It might work for you.
>>>
>>> (1) From the command line, type
>>>
>>>     sage -sh
>>>
>>> (2) Type
>>>
>>>    bash$    pythonw
>>
>> "pythonw" gave "command not found". If you meant "python", I got a
>> segfault:
>>
>>
>> [EMAIL PROTECTED]:/mnt/drive_hda1/sagefiles/sage-2.8.13.alpha1$ python
>> Python 2.5.1 (r251:54863, Nov 26 2007, 13:44:20)
>> [GCC 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)] on linux2
>> Type "help", "copyright", "credits" or "license" for more information.
>>>>> from sympy import symbols, Plot
>>>>> x,y,z = symbols('xyz')
>>>>> Plot(x*y**3-y*x**3)
>> [0]: x*y**3 - y*x**3, 'mode=cartesian'
>>>>> Window initialization failed: No conforming visual exists
>> Segmentation fault (core dumped)
> 
> It needs fixing to work from Sage notebook, there is some pythonw
> exception, but I have no idea what pythonw is. As to the segfault, it
> is probably a bug in pyglet, I just updated to the newest one and
> released sympy with that a few days ago. But ubuntu should work out of
> the box (if you are using ubuntu).
> 
> Ondrej
> 
> > 
> 

I got the following on Ubunty 7.10 (32-bit).  Any ideas what went wrong?

$ sage -sh
Starting subshell with Sage environment variables set:
$ pythonw

KABOOOM!!!

Whoops, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/ubuntu/+source/command-not-found
Please include the following information with the report:
No module named CommandNotFound
Traceback (most recent call last):
   File "/usr/lib/command-not-found", line 10, in <module>
     from CommandNotFound import CommandNotFound
ImportError: No module named CommandNotFound
Python version: 2.5.1 final 0
bash: pythonw: command not found
$ python<TAB>
python                python2.5-config      python-config
python2.4             python2.5-dbg         python-dbg
python2.4-config      python2.5-dbg-config  python-dbg-config
python2.5             python.cex
$ python
Python 2.5.1 (r251:54863, Nov 26 2007, 12:10:35)
[GCC 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
 >>> from sympy import symbols, Plot
 >>> x,y,z=symbols('xyz')
 >>> Plot(x*y**3-y*x**3)
Xlib:  extension "XFree86-DRI" missing on display ":1.0".
Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   File 
"/home/grout/sage/local/lib/python2.5/site-packages/sympy/plotting/__init
__.py", line 16, in Plot
     import plot
   File 
"/home/grout/sage/local/lib/python2.5/site-packages/sympy/plotting/plot.p
y", line 8, in <module>
     from plot_axes import PlotAxes
   File 
"/home/grout/sage/local/lib/python2.5/site-packages/sympy/plotting/plot_a
xes.py", line 2, in <module>
     from pyglet import font
   File 
"/home/grout/sage/local/lib/python2.5/site-packages/sympy/plotting/pyglet 
                                  /font/__init__.py", line 79, in <module>
     from pyglet import image
   File 
"/home/grout/sage/local/lib/python2.5/site-packages/sympy/plotting/pyglet 
                                  /image/__init__.py", line 1964, in 
<module>
     _codecs.add_default_image_codecs()
   File 
"/home/grout/sage/local/lib/python2.5/site-packages/sympy/plotting/pyglet 
                                  /image/codecs/__init__.py", line 173, 
in add_default_image_codecs
     import pyglet.image.codecs.gdkpixbuf2
   File 
"/home/grout/sage/local/lib/python2.5/site-packages/sympy/plotting/pyglet 
                                  /image/codecs/gdkpixbuf2.py", line 50, 
in <module>
     gdk = pyglet.lib.load_library('gdk-x11-2.0')
   File 
"/home/grout/sage/local/lib/python2.5/site-packages/sympy/plotting/pyglet 
                                  /lib.py", line 43, in load_library
     return ctypes.cdll.LoadLibrary(path)
   File "/home/grout/sage/local/lib/python2.5/ctypes/__init__.py", line 
425, in L                                  oadLibrary
     return self._dlltype(name)
   File "/home/grout/sage/local/lib/python2.5/ctypes/__init__.py", line 
342, in _                                  _init__
     self._handle = _dlopen(self._name, mode)
OSError: /usr/lib/libcairo.so.2: undefined symbol: FT_Library_SetLcdFilter
 >>>


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