Running sage's python on a python file gives ImportError:
sage subshell$ sage -python lp.py
Traceback (most recent call last):
File "lp.py", line 3, in <module>
from cvxopt import matrix
File "/home/dima/sage/sage-4.5.1/local/lib/python2.6/site-packages/
cvxopt/__init__.py", line 30, in <module>
import base
ImportError: /home/dima/sage/sage-4.5.1/local/lib/liblapack.so:
undefined symbol: __powidf2
--------------------------
on the other hand, load'ing this file in sage happily works:
sage subshell$ sage
----------------------------------------------------------------------
| Sage Version 4.5.1, Release Date: 2010-07-19 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage: load('lp.py')
pcost dcost gap pres dres k/t
0: -8.1000e+00 -1.8300e+01 4e+00 0e+00 8e-01 1e+00
[....]
This all happens on skynet's taurus:
sage subshell$ uname -a
Linux taurus 2.6.32.12-115.fc12.x86_64 #1 SMP Fri Apr 30 19:46:25 UTC
2010 x86_64 x86_64 x86_64 GNU/Linux
with Sage compiled using gcc-4.5.0
I was unable to reproduce this on systems that run gcc-4.x with x<5.
Any ideas where to look?
Thanks,
Dima
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