[Pythonmac-SIG] 64-bit mode no work

[Ned Deily]

In article <378C26CA-4CF5-4DD6-B2BB-0D24B8AA7906 at raeder.dk>,
 Lars Clausen <lars at raeder.dk> wrote:

Sorry, it's a bit difficult to tell what's going on here with all the 
changing pieces but one thing stands out: there's something very 
suspicious about the path names showing up in your tracebacks.  Note 
here:

> However, importing MySQLdb in python directly shows something  
> interesting:
>  >>> import MySQLdb
> Traceback (most recent call last):
>    File "<stdin>", line 1, in <module>
>    File "build/bdist.macosx-10.5-universal/egg/MySQLdb/__init__.py",  
> line 19, in <module>
>    File "build/bdist.macosx-10.5-universal/egg/_mysql.py", line 7, in  
> <module>
>    File "build/bdist.macosx-10.5-universal/egg/_mysql.py", line 6, in  
> __bootstrap__
> ImportError: dlopen(/Users/larsrc/.python-eggs/MySQL_python-1.2.2- 
> py2.6-macosx-10.5-universal.egg-tmp/_mysql.so, 2): Library not  
> loaded: /usr/local/mysql/lib/libmysqlclient_r.16.dylib
>    Referenced from: /Users/larsrc/.python-eggs/MySQL_python-1.2.2- 
> py2.6-macosx-10.5-universal.egg-tmp/_mysql.so
>    Reason: image not found
> It tries to fine the .16 version, but the 64-bit mysql has the .15  
> version:

The paths for the python files in MySQLdb do not look like they come 
from a normal installed egg.  Compare:
"build/bdist.macosx-10.5-universal/egg/_mysql.py"
to the path for the c extension:
"/Users/larsrc/.python-eggs/MySQL_python-1.2.2-py2.6-macosx-10.5-universa
l.egg-tmp/_mysql.so"
The latter looks correct.  _mysql.so and _mysql.py should  be in the 
same directory which probably explains the problem in your second 
example after rebuilding:

>  >>> import MySQLdb
> Traceback (most recent call last):
>    File "<stdin>", line 1, in <module>
>    File "build/bdist.macosx-10.5-universal/egg/MySQLdb/__init__.py",  
> line 19, in <module>
>    File "build/bdist.macosx-10.5-universal/egg/_mysql.py", line 7, in  
> <module>
>    File "build/bdist.macosx-10.5-universal/egg/_mysql.py", line 6, in  
> __bootstrap__
> ImportError: dynamic module does not define init function (init_mysql)

Depending on you settings, the installed egg may just be one zip file.  
If you look at the unzipped version, the layout of the top level of the 
egg should look something like this:

EGG-INFO/
MySQLdb/
_mysql.py*
_mysql.pyc
_mysql.pyo
_mysql.so*
_mysql_exceptions.py*
_mysql_exceptions.pyc
_mysql_exceptions.pyo

So it looks like there's something wrong with your sys.path here.  Are 
you using your python-64 to install the built egg to its site-packages 
directory?  It should just work.

cd build
/path/to/python-64 setup.py clean
/path/to/python-64 setup.py build
sudo /path/to/python-64 setup.py install

Don't know about the path for running under mod_python though.

-- 
 Ned Deily,
 nad at acm.org