Re: [announce] python-kmod 0.9

[Andy Grover <agrover@redhat.com>]

On 03/26/2014 10:45 AM, Lucas De Marchi wrote:
> On Mon, Mar 24, 2014 at 10:12:26AM -0700, Andy Grover wrote:
>> On 03/24/2014 05:02 AM, Lucas De Marchi wrote:
>>> I've just pushed a branch named "python" which contains the python
>>> bindings. I did it a bit different than you:
>>>
>>>   - All the code from your repository was imported maintaining the
>>> history. I would like to keep it, so I did a merge of the final import
>>> (fast forward, but forced to contain a commit).
>>>   - Python bindings are built with autotools. This allows to easily
>>> express the dependency with libkmod... but I'm not sure this is ideal
>>> as opposed to having a target to explicitely calling setuptools.  Any
>>> opinion?
>>>
>>> Then I noticed the example given in the README file doesn't work.
>>> Neither by installing they original python-kmod package :-/
>>>
>>>      >>> import kmod
>>>      >>> km = kmod.Kmod()
>>>      Traceback (most recent call last):
>>>        File "<stdin>", line 1, in <module>
>>>      AttributeError: 'module' object has no attribute 'Kmod'
>>>      >>> dir(kmod)
>>>      ['__builtins__', '__doc__', '__file__', '__loader__', '__name__',
>>> '__package__', '__path__', '__version__', 'list', 'version']
>>>
>>
>> The old 'python-kmod' pkg works for me:
>>
>> [agrover@work ~/.../python/kmod ((fac4d09...))]$ ipython
>>
>> In [1]: import kmod
>>
>> In [2]: km = kmod.Kmod()
>>
>> In [3]: sc = list(km.lookup("soundcore"))[0]
>>
>> In [4]: sc.path
>> Out[4]: u'/lib/modules/3.13.6-200.fc20.x86_64/kernel/sound/soundcore.ko'
>>
>> but when I try to use the new stuff:
>>
>> [agrover@work ~/.../python/kmod ((fac4d09...))]$
>> PYTHONPATH="/home/agrover/git/kmod/libkmod/python/kmod/.libs" ipython
>>
>> In [1]: import kmod
>> ---------------------------------------------------------------------------
>> ImportError                               Traceback (most recent call last)
>> <ipython-input-1-ff824b795612> in <module>()
>> ----> 1 import kmod
>>
>> ImportError: dynamic module does not define init function (initkmod)
>>
>> Is this what you're seeing as well?
>
>
> humn... indeed. The error was obfuscated for me because in the
> __init__.py you catch the exception and make it pass silently.
>
> In the build system I was inheriting the CFLAGS from the library and
> unfortunately PyMODINIT_FUNC doesn't include the visibility attribute.
> Since we use -fvisibility=hidden by default, this was breaking the
> module.
>
> It's working now, though I don't like to let it as -fvisibility=default.
>
> I just pushed the python branch again. Could you ack on it?

I'm still getting this error.

[agrover@work ~/git/kmod (python)]$ 
PYTHONPATH="/home/agrover/git/kmod/libkmod/python/kmod/.libs" python
Python 2.7.5 (default, Feb 19 2014, 13:47:28)
[GCC 4.8.2 20131212 (Red Hat 4.8.2-7)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
 >>> import kmod
Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   File "list.pxd", line 21, in init kmod.kmod 
(libkmod/python/kmod/kmod.c:3831)
ImportError: No module named list

I'm sorry I'm not being more help.. maybe we could get W. Trevor King or 
another Cython contributor to help us out here? I played around with it 
a bit and changing "kmod.list" to "list" on the line reporting an error 
in kmod.c seemed to help, and then repeating for additional errors, but 
kmod.c is a generated file so that's not the actual solution.

Regards -- Andy