Sure. Here is what I got.

>$ file /Users/jianbao/projects/
tao.com/djangoSite/lib/python2.7/site-packages/_mysql.so
/Users/jianbao/projects/
tao.com/djangoSite/lib/python2.7/site-packages/_mysql.so: Mach-O 64-bit
bundle x86_64

>$ otool -L /Users/jianbao/projects/
tao.com/djangoSite/lib/python2.7/site-packages/_mysql.so
/Users/jianbao/projects/
tao.com/djangoSite/lib/python2.7/site-packages/_mysql.so:
libmysqlclient.18.dylib (compatibility version 18.0.0, current version
18.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version
125.2.0)

I don't see why full path would make any difference, though.

Any thoughts?

Jim

On Tue, Aug 23, 2011 at 9:39 PM, Graham Dumpleton <
[email protected]> wrote:

> On 24 August 2011 12:31, Jianbao Tao <[email protected]> wrote:
> > Graham,
> > This is what I got.
> >>$ file ./lib/python2.7/site-packages/_mysql.so
> > ./lib/python2.7/site-packages/_mysql.so: Mach-O 64-bit bundle x86_64
> >>$ otool -L ./lib/python2.7/site-packages/_mysql.so
> > ./lib/python2.7/site-packages/_mysql.so:
> > libmysqlclient.18.dylib (compatibility version 18.0.0, current version
> > 18.0.0)
>
> Can you change working directory and run this again with full path
> name to _mysql.so.
>
> It says libmysqlclient.18.dylib but missing full path context to know
> for sure where that is coming from.
>
> > /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version
> > 125.2.0)
> > So, it seems _mysql.so is already for x86_64 architecture. But there is a
> > inconsistency about libSystem.B.dylib according the versions reported by
> > otool. But I am not sure if that dylib is ever used by MySQLdb or not.
>
> No so worried about the system library versioning. Probably normal.
>
> Graham
>
> > Any thoughts?
> > Jim
> > On Tue, Aug 23, 2011 at 6:41 PM, Graham Dumpleton
> > <[email protected]> wrote:
> >>
> >> What do you get if you run 'file' on _mysql.so extension module file in
> >> Python installation? Also run 'otool -L _mysql.so' as well to see what
> >> library it is finding. You have 64 bit libraries so should be okay
> unless
> >> you have 32 bit somewhere else and it is finding that instead.
> >>
> >> Graham
> >>
> >> On Wednesday, 24 August 2011, Jianbao Tao <[email protected]>
> wrote:
> >> > Thank you so much, Graham. You may have pointed me to the right
> >> > direction.
> >> > So, the following is what I get, where I basically filed all
> >> > libmysqlclient* files under /usr/local/mysql/lib/. It seems the mysql
> I
> >> > installed is for i386 architecture, but all the libmysqlclient files
> seem
> >> > for x86_64, which is really confusing. Anyway, do you have any ideas
> of
> >> > what's happening here?
> >> >>$ mysql --version
> >> > mysql  Ver 14.14 Distrib 5.5.14, for osx10.6 (i386) using readline 5.1
> >> >>$ ls /usr/local/mysql/lib/libmysqlclient*
> >> > /usr/local/mysql/lib/libmysqlclient.18.dylib
> >> > /usr/local/mysql/lib/libmysqlclient_r.18.dylib
> >> > /usr/local/mysql/lib/libmysqlclient.a
> >> >  /usr/local/mysql/lib/libmysqlclient_r.a
> >> > /usr/local/mysql/lib/libmysqlclient.dylib
> >> >  /usr/local/mysql/lib/libmysqlclient_r.dylib
> >> >>$ file /usr/local/mysql/lib/libmysqlclient.18.dylib
> >> > /usr/local/mysql/lib/libmysqlclient.18.dylib: Mach-O 64-bit
> dynamically
> >> > linked shared library x86_64
> >> >>$ file /usr/local/mysql/lib/libmysqlclient.dylib
> >> > /usr/local/mysql/lib/libmysqlclient.dylib: Mach-O 64-bit dynamically
> >> > linked shared library x86_64
> >> >>$ file /usr/local/mysql/lib/libmysqlclient.a
> >> > /usr/local/mysql/lib/libmysqlclient.a: current ar archive random
> library
> >> >>$ file /usr/local/mysql/lib/libmysqlclient_r.18.dylib
> >> > /usr/local/mysql/lib/libmysqlclient_r.18.dylib: Mach-O 64-bit
> >> > dynamically linked shared library x86_64
> >> >>$ file /usr/local/mysql/lib/libmysqlclient_r.dylib
> >> > /usr/local/mysql/lib/libmysqlclient_r.dylib: Mach-O 64-bit dynamically
> >> > linked shared library x86_64
> >> >>$ file /usr/local/mysql/lib/libmysqlclient_r.a
> >> > /usr/local/mysql/lib/libmysqlclient_r.a: current ar archive random
> >> > library
> >> >
> >> >
> >> > On Tue, Aug 23, 2011 at 5:09 PM, Graham Dumpleton
> >> > <[email protected]> wrote:
> >> >
> >> > On 24 August 2011 08:58, Jim <[email protected]> wrote:
> >> >> Hello folks,
> >> >> This probably has been discussed many times, but I still can't find
> any
> >> >> solution yet. Basically, it turns out that python can load MySQLdb
> just
> >> >> fine, but Apache can't load MySQLdb from the wsgi script.
> >> >> Here is the configuration of my machine.
> >> >> Mac OS X Snow Leopard 10.6.8
> >> >> Apache2 (shipped with Snow Leopard)
> >> >
> >> > Which is fat and by default will run as 64 bit.
> >> >
> >> >> Python 2.7 (from python.org)
> >> >
> >> > Which I believe now comes as fat binary so should be okay.
> >> >
> >> >> virtualenv
> >> >> MySQL-python 1.2.3
> >> >
> >> > This is where problems start.
> >> >
> >> > Because Apache is going to run as 64 bit, and because MySQL client
> >> > libraries are not fat but for a specific architecture, you need to
> >> > ensure you installed 64 bit MySQL and not 32 but version.
> >> >
> >> > For example, on my system I have:
> >> >
> >> >  mysql-5.1.53-osx10.6-x86_64
> >> >
> >> > and get:
> >> >
> >> >  $ file /usr/local/mysql/lib/libmysqlclient.16.dylib
> >> >  /usr/local/mysql/lib/libmysqlclient.16.dylib: Mach-O 64-bit
> >> > dynamically linked shared library x86_64
> >> >
> >> > I suspect you will find that yours is only 32 bit and not 64 bit. That
> >> > is why you would get error:
> >> >
> >> >  Reason: image not found
> >> >
> >> > Can you run the 'file' command on the dylib and see what it says.
> >> >
> >> > Graham
> >> >
> >> >> BTW, I can import MySQLdb with no problem under python interpreter.
> >> >> I am using python2.7 in a virtual environment created by virtualenv.
> >> >> Here is
> >> >> the error info extracted from the Apache error log. To make the lines
> >> >> shorter, I deleted all the time tags in the brackets.
> >> >> Any ideas how to fix it?
> >> >> [] mod_wsgi (pid=3136): Target WSGI script
> >> >> '/Users/jianbao/projects/tao.com/mysite/apache/django.wsgi' cannot
> be
> >> >> loaded
> >> >> as Python module.
> >> >> [] mod_wsgi (pid=3136): Exception occurred processing WSGI script
> >> >> '/Users/jianbao/projects/tao.com/mysite/apache/django.wsgi'.
> >> >> [] Traceback (most recent call last):
> >> >> []   File "/Users/jianbao/projects/tao.com/mysite/apache/django.wsgi
> ",
> >> >> line
> >> >> 56, in <module>
> >> >> []     import MySQLdb
> >> >> []   File
> >> >>
> >> >> "/Users/jianbao/projects/
> tao.com/mysite/lib/python2.7/site-packages/MySQLdb/__init__.py",
> >> >> line 19, in <module>
> >> >> []     import _mysql
> >> >> [] ImportError:
> >> >>
> >> >> dlopen(/Users/jianbao/projects/
> tao.com/mysite/lib/python2.7/site-packages/_mysql.so,
> >> >> 2): Library not loaded: libmysqlclient.18.dylib
> >> >> []   Referenced from:
> >> >>
> >> >> /Users/jianbao/projects/
> tao.com/mysite/lib/python2.7/site-packages/_mysql.so
> >> >> []   Reason: image not found
> >> >>
> >> >> --
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