pymat strange behavior

[John Houston]

Hi, there,

I recently build pymat (python2.3, matlab 6.5) on a Linux PC, 
Everything goes well until I tried to use it in python2.3:

Python 2.3 (#2, Aug 31 2003, 17:27:29) 
[GCC 3.3.1 (Mandrake Linux 9.2 3.3.1-1mdk)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pymat
>>> pymat.__version__
'1.1'
>>> H=pymat.open()
Traceback (most recent call last):
  File "<input>", line 1, in ?
AttributeError: 'module' object has no attribute 'open'

Anybody can help?
Thanks
John Houston