On 08/22/2011 05:57 AM, fbissey@... wrote:
> Quoting P Purkayastha <ppurka@...>:
>
>> On 08/22/2011 05:38 AM, fbissey@... wrote:
>>> Quoting v_2e@...:
>>>
>>>> Hello!
>>>>
>>>> On Sun, 21 Aug 2011 23:50:50 +0800
>>>> P Purkayastha <ppurka@...> wrote:
>>>>
>>>>> Hi all,
>>>>> Thanks to the quick help, I could upgrade my sage to 4.7.1 (from
>>>>> 4.7.0). However, I am unable to run the notebook. And I also get a
>>>>> similar error when I run sage by itself.
>>>>
>>>> The very same problem here.
>>>> Just in case: I do not use Java at all and thus I have no jdk at all
>>>> on my system.
>>>>
>>> Hope webmail gets me to the list.
>>> What version of pynac do you have installed?
>>>
>>> Francois
>>
>> You are on the list :)
>>
>> pynac version is 0.2.3:
>>
>> ~> eix -e pynac
>> [I] sci-libs/pynac [1]
>> Available versions: (~)0.2.1-r1!m (~)0.2.3!m {static-libs}
>> Installed versions: 0.2.3!m(07:55:25 PM 08/20/2011)(-static-libs)
>> Homepage: http://pynac.sagemath.org/
>> https://bitbucket.org/burcin/pynac/overview
>> Description: A modified version of GiNaC that replaces the
>> dependency on CLN by Python
>>
>> [1] "sage-on-gentoo" /var/lib/layman/sage-on-gentoo
> Have you guys rebuilt cython recently? The version to be used is
> 0.14.1-r1 from the sage-on-gentoo overlay.
>
> Francois

Indeed cython was not rebuilt after/during the update of sage. 
Rebuilding it doesn't make any difference. Still get the same errors. 
eix output just before remerging cython:

[I] dev-python/cython
      Available versions:  0.14.1 0.14.1-r1[1] {doc examples}
      Installed versions:  0.14.1-r1[1](10:34:40 PM 08/05/2011)(-doc 
-examples)
      Homepage:            http://www.cython.org/ 
http://pypi.python.org/pypi/Cython
      Description:         The Cython compiler for writing C extensions 
for the Python language