I was toying around with simple wsgi application (I just learnt about
mod_wsgi AddHandler directive, for so long I have been using
WSGIScriptAlias to launch my wsgi app). So the idea is to have
something that closely resemble PHP way of executing the application.
Don't ask me why, just for fun. I use Django or Flask for real thing.
So here's my application defined in ../app/php.py:-
class PHPApplication(object):
def __init__(self):
self.out = []
self.counter = 0
self.counter += 1
self.out.append(str(self.counter))
def printx(self, out):
self.out.append(out)
def __call__(self, environ, start_response):
start_response('200 OK', [('Content-type', 'text/html')])
for out in self.out:
yield out
and the index.py:-
import os
import sys
CUR_DIR = os.path.abspath(os.path.dirname(__file__))
LIB_DIR = os.path.abspath(os.path.join(CUR_DIR, '../lib'))
APP_DIR = os.path.abspath(os.path.join(CUR_DIR, '../app'))
for path in (LIB_DIR, APP_DIR,):
if path not in sys.path:
sys.path.insert(0, path)
from php import PHPApplication
php = PHPApplication()
php.printx("hello world")
application = php
and the apache vhost config:-
DocumentRoot /home/kamal/pylikephp/htdocs
DirectoryIndex index.py
Options ExecCGI
AddHandler wsgi-script .py
Order allow,deny
Allow from all
WSGIDaemonProcess pylikephp processes=1 threads=2 display-name=%
{GROUP}
WSGIProcessGroup pylikephp
My initial thought was the counter will always get incremented since
the application object was created only once during mod_wsgi daemon
process initialization. But it look like the application object is
created on each requests since the counter always stayed at 1 even
after refreshing my browser few times. What I'm missing here ?
If this is how mod_wsgi work, does it safe to build my application
like this - allow user to initialized my Application, call some method
on it and be sure that the application is destroyed when the request
end ?
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