Farbflash

mod_python on Leopard

Compiling mod_python on Leopard is not as simple as it would appear. The default install only builds a i386 version that fails when restarting Apache with the error:

httpd: Syntax error on line ** of /Users/*******/Downloads/mod_python-3.3.1/test/conf/test.conf: Cannot load /usr/libexec/apache2/mod_python.so into server: dlopen(/usr/libexec/apache2/mod_python.so, 10): no suitable image found. Did find:\n\t/usr/libexec/apache2/mod_python.so: mach-o, but wrong architecture

my own rundown is:

downloaded mod_python:

wget http://www.apache.org/dist/httpd/modpython/mod_python-3.3.1.tgz

unstuff:

tar -xzf mod_python-3.3.1.tgz
cd mod_python-3.3.1

configure with apxs (actually I think a simple ./configure would also do)

./configure --with-apxs=/usr/sbin/apxs

now patch src/MakeFile:

• Add -arch x86_64 -arch ppc -arch i386 to the end of the LDFLAGS line (no quotes, of course).
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• Add -arch x86_64 -arch ppc -arch i386 to the end of the CFLAGS line , otherwise you‰Ä™ll get the "symbol not found" error.
• Under the mod_python.so target add the following to the line after the -c but before the -Wc,"-arch x86_64" -Wc,"-arch ppc" -Wc,"-arch i386" so the complete line looks like. -c -Wc,"-arch x86_64" -Wc,"-arch ppc" -Wc,"-arch i386"

and now:

make && sudo make install

now edit your apache config file (sudo nano /etc/apache2/httpd.conf) in order to load mod_python add (or uncomment) the following line:

LoadModule python_module libexec/apache2/mod_python.so

In order to test whether mod_python works add the following to your apache config:

<Location /mpinfo>
  SetHandler mod_python
  PythonInterpreter main_interpreter
  PythonHandler mod_python.testhandler
</Location>

restart the apache webserver (sudo apachectl graceful) and point your browser to localhost/mpinfo

That should give you a page with the mod_python configuration info

You can check the architecture of your mod_python module in the terminal with:

file /usr/libexec/apache2/mod_python.so

It should return the following result:

/usr/libexec/apache2/mod_python.so: Mach-O universal binary with 3 architectures
/usr/libexec/apache2/mod_python.so (for architecture x86_64):	Mach-O 64-bit bundle x86_64
/usr/libexec/apache2/mod_python.so (for architecture ppc7400):	Mach-O bundle ppc
/usr/libexec/apache2/mod_python.so (for architecture i386):	Mach-O bundle i386

Comments:

Thursday, 29.November 2007 22:47:11 Nicolas wrote:

for that works, my line under the mod_python.so target looks like to $(APXS) $(INCLUDES) -c -Wc,"-arch x86_64" -Wc,"-arch ppc" -Wc,"-arch i386" $(SRCS) $(LDFLAGS) $(LIBS)