this is the error report:

“No module named math”
“Traceback (most recent call last):
File \”<stdin>\“, line 2, in <module>
ImportError: No module named math
”
Traceback (most recent call last):
File “<string>”, line 3, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools
Error in sys.excepthook:
Traceback (most recent call last):
File “/usr/lib/python2.6/dist-packages/apport_python_hook.py”, line 38, in apport_excepthook
from apport.packaging_impl import impl as packaging
File “/usr/lib/python2.6/dist-packages/apport/__init__.py”, line 1, in <module>
from apport.report import Report
File “/usr/lib/python2.6/dist-packages/apport/report.py”, line 14, in <module>
import subprocess, tempfile, os.path, urllib, re, pwd, grp, os, sys
File “/usr/lib/python2.6/subprocess.py”, line 401, in <module>
import select
ImportError: No module named select

Original exception was:
Traceback (most recent call last):
File “<string>”, line 3, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools
PyClerk: Traceback (most recent call last):
File “<stdin>”, line 1, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/shopclerks/i3dclerk.py”, line 5, in <module>
import hou
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools

PyClerk: No getName() method found
PyClerk: Traceback (most recent call last):
File “<stdin>”, line 1, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/shopclerks/ifdclerk.py”, line 5, in <module>
import hou
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools

PyClerk: No getName() method found
PyClerk: Traceback (most recent call last):
File “<stdin>”, line 1, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/shopclerks/miclerk.py”, line 5, in <module>
import hou
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools

PyClerk: No getName() method found
PyClerk: Traceback (most recent call last):
File “<stdin>”, line 1, in <module>
File “/opt/hfs11.0.579/houdini/python2.6libs/shopclerks/ribclerk.py”, line 5, in <module>
import hou, sys
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32491, in <module>
Vector2.almostEqual = __deprecated(Vector2.almostEqual)
File “/opt/hfs11.0.579/houdini/python2.6libs/hou.py”, line 32482, in __deprecated
import warnings, functools
File “/usr/lib/python2.6/functools.py”, line 10, in <module>
from _functools import partial, reduce
ImportError: No module named _functools

PyClerk: No getName() method found
hbatch Version 11.0.579 (Compiled on 11/29/10)

and this is python -v in shell:

# installing zipimport hook
import zipimport # builtin
# installed zipimport hook
# /usr/lib/python2.6/site.pyc matches /usr/lib/python2.6/site.py
import site # precompiled from /usr/lib/python2.6/site.pyc
# /usr/lib/python2.6/os.pyc matches /usr/lib/python2.6/os.py
import os # precompiled from /usr/lib/python2.6/os.pyc
import errno # builtin
import posix # builtin
# /usr/lib/python2.6/posixpath.pyc matches /usr/lib/python2.6/posixpath.py
import posixpath # precompiled from /usr/lib/python2.6/posixpath.pyc
# /usr/lib/python2.6/stat.pyc matches /usr/lib/python2.6/stat.py
import stat # precompiled from /usr/lib/python2.6/stat.pyc
# /usr/lib/python2.6/genericpath.pyc matches /usr/lib/python2.6/genericpath.py
import genericpath # precompiled from /usr/lib/python2.6/genericpath.pyc
# /usr/lib/python2.6/warnings.pyc matches /usr/lib/python2.6/warnings.py
import warnings # precompiled from /usr/lib/python2.6/warnings.pyc
# /usr/lib/python2.6/linecache.pyc matches /usr/lib/python2.6/linecache.py
import linecache # precompiled from /usr/lib/python2.6/linecache.pyc
# /usr/lib/python2.6/types.pyc matches /usr/lib/python2.6/types.py
import types # precompiled from /usr/lib/python2.6/types.pyc
# /usr/lib/python2.6/UserDict.pyc matches /usr/lib/python2.6/UserDict.py
import UserDict # precompiled from /usr/lib/python2.6/UserDict.pyc
# /usr/lib/python2.6/_abcoll.pyc matches /usr/lib/python2.6/_abcoll.py
import _abcoll # precompiled from /usr/lib/python2.6/_abcoll.pyc
# /usr/lib/python2.6/abc.pyc matches /usr/lib/python2.6/abc.py
import abc # precompiled from /usr/lib/python2.6/abc.pyc
# /usr/lib/python2.6/copy_reg.pyc matches /usr/lib/python2.6/copy_reg.py
import copy_reg # precompiled from /usr/lib/python2.6/copy_reg.pyc
# /usr/lib/python2.6/sitecustomize.pyc matches /usr/lib/python2.6/sitecustomize.py
import sitecustomize # precompiled from /usr/lib/python2.6/sitecustomize.pyc
# /usr/lib/python2.6/dist-packages/apport_python_hook.pyc matches /usr/lib/python2.6/dist-packages/apport_python_hook.py
import apport_python_hook # precompiled from /usr/lib/python2.6/dist-packages/apport_python_hook.pyc
import encodings # directory /usr/lib/python2.6/encodings
# /usr/lib/python2.6/encodings/__init__.pyc matches /usr/lib/python2.6/encodings/__init__.py
import encodings # precompiled from /usr/lib/python2.6/encodings/__init__.pyc
# /usr/lib/python2.6/codecs.pyc matches /usr/lib/python2.6/codecs.py
import codecs # precompiled from /usr/lib/python2.6/codecs.pyc
import _codecs # builtin
# /usr/lib/python2.6/encodings/aliases.pyc matches /usr/lib/python2.6/encodings/aliases.py
import encodings.aliases # precompiled from /usr/lib/python2.6/encodings/aliases.pyc
# /usr/lib/python2.6/encodings/utf_8.pyc matches /usr/lib/python2.6/encodings/utf_8.py
import encodings.utf_8 # precompiled from /usr/lib/python2.6/encodings/utf_8.pyc
Python 2.6.2 (release26-maint, Apr 19 2009, 01:58:18)
on linux2
Type “help”, “copyright”, “credits” or “license” for more information.
dlopen(“/usr/lib/python2.6/lib-dynload/readline.so”, 2);
import readline # dynamically loaded from /usr/lib/python2.6/lib-dynload/readline.so


ubuntu9.04 64bit.
what's wrong with my config?