importing site fails - why?

Helmut Jarausch jarausch at igpm.rwth-aachen.de
Fri Nov 12 20:24:26 CET 2010


On Fri, 12 Nov 2010 19:42:46 +0100, Stefan Sonnenberg-Carstens wrote:

> Am 12.11.2010 19:32, schrieb Helmut Jarausch:
>> Hi,
>>
>> as often before, I've cloned a working system (GenToo) onto another
>> machine. There, from a livecd and chroot to the cloned root partition
>>
>> python -v
>> import site
>>
>> fails with the following error
>> Python 2.6.6 (r266:84292, Oct 13 2010, 09:06:24) [GCC 4.4.4] on linux2
>> Type "help", "copyright", "credits" or "license" for more information.
>> dlopen("/usr/lib64/python2.6/lib-dynload/readline.so", 2); import
>> readline # dynamically loaded from /usr/lib64/python2.6/lib-
>> dynload/readline.so
>>>>> import site
>> # /usr/lib64/python2.6/site.pyc matches /usr/lib64/python2.6/site.py
>> import site # precompiled from /usr/lib64/python2.6/site.pyc Traceback
>> (most recent call last):
>>    File "<stdin>", line 1, in<module>
>>    File "/usr/lib64/python2.6/site.py", line 526, in<module>
>>      main()
>>    File "/usr/lib64/python2.6/site.py", line 509, in main
>>      known_paths = addsitepackages(known_paths)
>>    File "/usr/lib64/python2.6/site.py", line 289, in addsitepackages
>>      addsitedir(sitedir, known_paths)
>>    File "/usr/lib64/python2.6/site.py", line 185, in addsitedir
>>      addpackage(sitedir, name, known_paths)
>>    File "/usr/lib64/python2.6/site.py", line 159, in addpackage
>>      if not dircase in known_paths and os.path.exists(dir):
>>    File "/usr/lib64/python2.6/genericpath.py", line 18, in exists
>>      st = os.stat(path)
>> TypeError: stat() argument 1 must be encoded string without NULL bytes,
>> not str
>>>>>>> I'm puzzled and I'd appreciate any hints to the reason for this
>> failure.
>>
>> Many thanks,
>> Helmut.
> You gave the answer yourself.
> Chrooting does not automatically mean your SO cache is where it should
> be for the target system.
> Perhaps your livecd is newer/older than the target system or simply the
> python in live environment
> is not (most likely) compiled as the one in the target system.
> 

It has been working dozens of time!
Are you saying, an  ldconfig  would rectify the situation?

Unfortunately, I can only test it on monday.

Thanks,
Helmut.





-- 
Helmut Jarausch
Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany



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