mod_pythonメモ
http://www.python.jp/doc/contrib/modpython/installation.htmlを試してみました。
Python version mismatch, expected '2.5.1', found '2.6.2'.
とか
[Sat May 23 23:24:37 2009] [error] [client ::1] mod_python (pid=9312, interpreter='Macintosh-6.local', phase='PythonHandler', ha
ndler='mptest'): Application error
[Sat May 23 23:24:37 2009] [error] [client ::1] ServerName: 'Macintosh-6.local'
[Sat May 23 23:24:37 2009] [error] [client ::1] DocumentRoot: '/usr/local/apache2/htdocs'
[Sat May 23 23:24:37 2009] [error] [client ::1] URI: '/test/mptest.py'
[Sat May 23 23:24:37 2009] [error] [client ::1] Location: None
[Sat May 23 23:24:37 2009] [error] [client ::1] Directory: '/usr/local/apache2/htdocs/test/'
[Sat May 23 23:24:37 2009] [error] [client ::1] Filename: '/usr/local/apache2/htdocs/test/mptest.py'
[Sat May 23 23:24:37 2009] [error] [client ::1] PathInfo: ''
[Sat May 23 23:24:37 2009] [error] [client ::1] Traceback (most recent call last):
[Sat May 23 23:24:37 2009] [error] [client ::1] File "/Library/Python/2.5/site-packages/mod_python/importer.py", line 1537, in
HandlerDispatch\n default=default_handler, arg=req, silent=hlist.silent)
[Sat May 23 23:24:37 2009] [error] [client ::1] File "/Library/Python/2.5/site-packages/mod_python/importer.py", line 1202, in
_process_target\n module = import_module(module_name, path=path)
[Sat May 23 23:24:37 2009] [error] [client ::1] File "/Library/Python/2.5/site-packages/mod_python/importer.py", line 304, in
import_module\n return __import__(module_name, {}, {}, ['*'])
[Sat May 23 23:24:37 2009] [error] [client ::1] ImportError: No module named mptest
[Sat May 23 23:24:39 2009] [error] [client ::1] mod_python (pid=9309, interpreter='Macintosh-6.local', phase='PythonHandler', ha
ndler='mptest'): Application error
[Sat May 23 23:24:39 2009] [error] [client ::1] ServerName: 'Macintosh-6.local'
[Sat May 23 23:24:39 2009] [error] [client ::1] DocumentRoot: '/usr/local/apache2/htdocs'
[Sat May 23 23:24:39 2009] [error] [client ::1] URI: '/test/mptest.py'
[Sat May 23 23:24:39 2009] [error] [client ::1] Location: None
[Sat May 23 23:24:39 2009] [error] [client ::1] Directory: '/usr/local/apache2/htdocs/test/'
[Sat May 23 23:24:39 2009] [error] [client ::1] Filename: '/usr/local/apache2/htdocs/test/mptest.py'
[Sat May 23 23:24:39 2009] [error] [client ::1] PathInfo: ''
[Sat May 23 23:24:39 2009] [error] [client ::1] Traceback (most recent call last):
[Sat May 23 23:24:39 2009] [error] [client ::1] File "/Library/Python/2.5/site-packages/mod_python/importer.py", line 1537, in
HandlerDispatch\n default=default_handler, arg=req, silent=hlist.silent)
[Sat May 23 23:24:39 2009] [error] [client ::1] File "/Library/Python/2.5/site-packages/mod_python/importer.py", line 1202, in
_process_target\n module = import_module(module_name, path=path)
[Sat May 23 23:24:39 2009] [error] [client ::1] File "/Library/Python/2.5/site-packages/mod_python/importer.py", line 304, in
import_module\n return __import__(module_name, {}, {}, ['*'])
[Sat May 23 23:24:39 2009] [error] [client ::1] ImportError: No module named mptestとかいわれてはまりました。。。
とりあえずport経由じゃなくてインストールしたPython2.6を削除して、pythonスクリプトをhtdocs直下においたらうまくいきました。以下は作業記録です。
mod_pythonのインストール
$ wget http://ftp.riken.jp/net/apache/httpd/modpython/mod_python-3.3.1.tgz $ tar zxvf mod_python-3.3.1.tgz $ cd mod_python-3.3.1 $ ./configure --with-apxs=/usr/local/apache2/bin/apxs --with-python=/usr/bin/python $ make $ sudo make install
httpd.confの編集
LoadModule python_module modules/mod_python.so <Directory /usr/local/apache2/htdocs/> AddHandler mod_python .py PythonHandler mptest PythonDebug On </Directory>
$ cat /usr/local/apache2/htdocs/mptest.py
from mod_python import apache
def handler(req):
req.write("Hello World!")
return apache.OKアクセスするURLはhttp://localhost/mptest.py
$ sudo gdb /usr/local/apache2/bin/httpd
Password:
GNU gdb 6.3.50-20050815 (Apple version gdb-962) (Sat Jul 26 08:14:40 UTC 2008)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-apple-darwin"...Reading symbols for shared libraries ........ done
(gdb) b python_handler
Function "python_handler" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (python_handler) pending.
(gdb) r -X
Starting program: /usr/local/apache2/bin/httpd -X
Reading symbols for shared libraries +++++++. done
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
Reading symbols for shared libraries .. done
Breakpoint 1 at 0x21865a: file mod_python.c, line 1533.
Pending breakpoint 1 - "python_handler" resolved
Reading symbols for shared libraries . done
Reading symbols for shared libraries . done
Reading symbols for shared libraries .. done
Breakpoint 1 at 0x21865a: file mod_python.c, line 1533.
Pending breakpoint 1 - "python_handler" resolved
Breakpoint 1, 0x0021865a in python_handler (req=0x8fd050, phase=0x21d960 "PythonInitHandler") at mod_python.c:1533
1533 {
(gdb) l
1528 **
1529 * A generic python handler. Most handlers should use this.
1530 */
1531
1532 static int python_handler(request_rec *req, char *phase)
1533 {
1534
1535 PyObject *resultobject = NULL;
1536 interpreterdata *idata;
1537 requestobject *request_obj;
(gdb) n
1535 PyObject *resultobject = NULL;
(gdb) n
1540 const char *interp_name = NULL;
(gdb) bt
#0 python_handler (req=0x8fd050, phase=0x21d960 "PythonInitHandler") at mod_python.c:1540
#1 0x0021afa6 in PythonPostReadRequestHandler (req=0x8fd050) at mod_python.c:2898
#2 0x0001c113 in ap_run_post_read_request ()
#3 0x0001a95b in ap_read_request ()
#4 0x0003a41e in ap_process_http_connection ()
#5 0x00012c0d in ap_run_process_connection ()
#6 0x00013089 in ap_process_connection ()
#7 0x000586ff in child_main ()
#8 0x0005881c in make_child ()
#9 0x00058eb9 in ap_mpm_run ()
#10 0x0000a9d5 in main ()
(gdb) c
Continuing.
mod_python.cのpython_handler関数をちろっとみるとget_interpreterでインタープリタを取得してPyObject_CallMethodでpythonスクリプトを起動してrelease_interpreterでインタープリタを解放してるっぽい。
1627 /* get/create interpreter */ 1628 idata = get_interpreter(interp_name); 1629 1630 if (!idata) { 1631 ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, req, 1632 "python_handler: Can't get/create interpreter."); 1633 return HTTP_INTERNAL_SERVER_ERROR; 1634 } 1635 1636 /* create/acquire request object */ 1637 request_obj = python_get_request_object(req, phase); 1638 1639 /* remember the extension if any. used by publisher */ 1640 if (ext) 1641 request_obj->extension = apr_pstrdup(req->pool, ext); 1642 1643 /* construct a new handler list object */ 1644 Py_XDECREF(request_obj->hlo); 1645 request_obj->hlo = (hlistobject *)MpHList_FromHLEntry(hlohle); 1646 1647 /* 1648 * Here is where we call into Python! 1649 * This is the C equivalent of 1650 * >>> resultobject = obCallBack.Dispatch(request_object, phase) 1651 */ 1652 resultobject = PyObject_CallMethod(idata->obcallback, "HandlerDispatch", 1653 "O", request_obj); 1654 1655 /* clear phase from request object */ 1656 Py_XDECREF(request_obj->phase); 1657 request_obj->phase = NULL; 1658 1659 /* release the lock and destroy tstate*/ 1660 release_interpreter();
