I'm trying to make a vpython package for SAGE:
see http://www.vpython.org/index.html
With the correct prefix <path_to>sage-2.7.3/local all seems to go well, but
"make install" fails to make an executable vpython:
1) there is still a ${prefix} in the file vpython
2) IDLE points to the wrong place
This is a known issue.
You have to edit ../bin/vpython by hand or use a script like:
cd /usr/local/lib/python2.5/site-packages/visual/examples
/usr/local/bin/python2.5 /usr/local/lib/python2.5/idlelib/idle.pyw
adapted to the actual situation (see the download page)
But running vpython then fails on the examples:
> > Python 2.5.1 (r251:54863, Aug 12 2007, 13:20:03)
> > [GCC 4.1.2 20070502 (Red Hat 4.1.2-12)] on linux2
> > Type "copyright", "credits" or "license()" for more information.
> >
> > ****************************************************************
> > Personal firewall software may warn about the connection IDLE
> > makes to its subprocess using this computer's internal loopback
> > interface. This connection is not visible on any external
> > interface and no data is sent to or received from the Internet.
> > ****************************************************************
> >
> > IDLE 1.2.1
>>>> >>>> ================================ RESTART
>>>> >>>> ================================
>>>> >>>>
> >
> > Traceback (most recent call last):
> > File
> > "/home/jaap/work/downloads/sage-2.7.3/local/lib/python2.5/site-packages/visual/examples/bounce.py",
> > line 1, in <module>
> > from visual import *
> > File
> > "/home/jaap/downloads/sage-2.7.3/local//lib/python2.5/site-packages/visual/__init__.py",
> > line 27, in <module>
> > import cvisual
> > ImportError: /usr/lib/libboost_python.so.2: undefined symbol:
> > PyUnicodeUCS4_FromEncodedObject
> >
> >
No problems with libboost_python when I install visual-4.beta16 with my
standard python2.5 (python-2.5)
Any suggestions?
Jaap
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