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POapache2 and mod wsgi : Target WSGI script cannot be loaded as Python module
 

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    <p>I am trying to install mod_wsgi on apache2, on ubuntu. So I install libapache2-mod-wsgi package, I activate him with a2enmod.</p> <p>I got a web site (languageAnalyz), that I am trying to use with mod_wsgi. When I call localhost/languageAnalyz, I got an error 500.</p> <p>In apache2 log, I can see this :</p> <pre><code>[Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] mod_wsgi (pid=4993): Target WSGI script '/var/www/languageAnalyz/test-wsgi.py' cannot be loaded as Python module. [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] mod_wsgi (pid=4993): SystemExit exception raised by WSGI script '/var/www/languageAnalyz/test-wsgi.py' ignored. [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] Traceback (most recent call last): [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] File "/var/www/languageAnalyz/test-wsgi.py", line 10, in &lt;module&gt; [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] WSGIServer(app).run() [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/flup/server/fcgi.py", line 112, in run [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] sock = self._setupSocket() [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/flup/server/fcgi_base.py", line 997, in _setupSocket [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] req.run() [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/flup/server/fcgi_base.py", line 572, in run [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] self._end(appStatus, protocolStatus) [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/flup/server/fcgi_base.py", line 601, in _end [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] sys.exit(appStatus) [Sun Aug 25 11:28:21 2013] [error] [client 127.0.0.1] SystemExit: 0 </code></pre> <p>I googled this error, and I find lot of solutions (most of the times for Django project). What I undsertand, is that I need to create a <code>__init__.py</code> file. What I did, here is my <code>__init__.py</code> file :</p> <pre><code>__all__ = ['app','get_size_dir','get_nbrf_dir','getStats'] #name of my functions import index # my three python files import analyz import test-wsgi </code></pre> <p>In the <code>__all__</code> list, this is the name of the functions in the three files. I am just trying to launch test-wsgi.py, and get the same error 500.</p> <p>Here is my test-wsgi.py file :</p> <pre><code>import os,sys sys.path.append(os.path.dirname(__file__)) from cgi import escape,parse_qs from flup.server.fcgi import WSGIServer def app(environ, start_response): start_response('200 OK',[('Content-Type','text/plain; charset=utf-8')]) yield "hello world!" WSGIServer(app).run() </code></pre> <p>So what's wrong ? Thank you,</p> <p>Edit : here is my apache2 conf :</p> <pre><code>WSGIPythonPath /var/www/languageAnalyz &lt;VirtualHost *:80&gt; ... &lt;Directory /var/www/languageAnalyz/&gt; Options +Indexes ExecCGI FollowSymLinks MultiViews AllowOverride None Order allow,deny Allow from all DirectoryIndex index.py SetHandler wsgi-script &lt;/Directory&gt; ... &lt;/VirtualHost&gt; </code></pre> <p>Edit_bis : So I try to do as I read on django doc. I change my apache2 conf to :</p> <pre><code>WSGIPythonPath /var/www/languageAnalyz &lt;VirtualHost *:80&gt; ... WSGIScriptAlias /IPA /var/www/languageAnalyz/testwsgi.py &lt;Directory /var/www/languageAnalyz/&gt; Options +Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny Allow from all DirectoryIndex testwsgi.py &lt;/Directory&gt; ... &lt;/VirtualHost&gt; </code></pre> <p>I restart apache2, and I got the same error, and one more before :</p> <pre><code>[Sun Aug 25 12:47:18 2013] [notice] caught SIGTERM, shutting down [Sun Aug 25 12:47:19 2013] [notice] FastCGI: wrapper mechanism enabled (wrapper: /usr/lib/apache2/suexec) [Sun Aug 25 12:47:19 2013] [notice] FastCGI: process manager initialized (pid 7879) [Sun Aug 25 12:47:19 2013] [notice] mod_python: Creating 8 session mutexes based on 150 max processes and 0 max threads. [Sun Aug 25 12:47:19 2013] [notice] mod_python: using mutex_directory /tmp [Sun Aug 25 12:47:19 2013] [warn] mod_wsgi: Compiled for Python/2.7.3. [Sun Aug 25 12:47:19 2013] [warn] mod_wsgi: Runtime using Python/2.7.4. [Sun Aug 25 12:47:19 2013] [notice] Apache/2.2.22 (Ubuntu) mod_fastcgi/mod_fastcgi-SNAP-0910052141 PHP/5.4.9-4ubuntu2.2 mod_python/3.3.1 Python/2.7.4 mod_ruby/1.2.6 Ruby/1.8.7(2012-02-08) mod_wsgi/3.4 configured$ [Sun Aug 25 12:47:19 2013] [error] WSGIServer: missing FastCGI param REQUEST_METHOD required by WSGI! [Sun Aug 25 12:47:19 2013] [error] WSGIServer: missing FastCGI param SERVER_NAME required by WSGI! [Sun Aug 25 12:47:19 2013] [error] WSGIServer: missing FastCGI param SERVER_PORT required by WSGI! [Sun Aug 25 12:47:19 2013] [error] WSGIServer: missing FastCGI param SERVER_PROTOCOL required by WSGI! [Sun Aug 25 12:47:19 2013] [error] Status: 200 OK\r [Sun Aug 25 12:47:19 2013] [error] Content-Type: text/plain; charset=utf-8\r [Sun Aug 25 12:47:19 2013] [error] \r [Sun Aug 25 12:47:19 2013] [error] hello world! [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] mod_wsgi (pid=7884): Target WSGI script '/var/www/languageAnalyz/testwsgi.py' cannot be loaded as Python module. [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] mod_wsgi (pid=7884): SystemExit exception raised by WSGI script '/var/www/languageAnalyz/testwsgi.py' ignored. [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] Traceback (most recent call last): [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] File "/var/www/languageAnalyz/testwsgi.py", line 10, in &lt;module&gt; [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] WSGIServer(app).run() [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/flup/server/fcgi.py", line 112, in run [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] sock = self._setupSocket() [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/flup/server/fcgi_base.py", line 997, in _setupSocket [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] req.run() [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/flup/server/fcgi_base.py", line 572, in run [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] self._end(appStatus, protocolStatus) [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/flup/server/fcgi_base.py", line 601, in _end [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] sys.exit(appStatus) [Sun Aug 25 12:47:19 2013] [error] [client 127.0.0.1] SystemExit: 0 </code></pre> <p>Edit_ter :</p> <p>Ok, I just successfully launch testwsgi.py. I change my app function into application, and I add some lines at the end :</p> <pre><code>if __name__ == '__main__': from wsgiref.simple_server import make_server server = make_server('localhost', 8080, application) server.serve_forever() </code></pre> <p>I event don't know, why it's working, why it was not working before. ... And now I got some problem to open files, with their path (config files, or templates files ...)</p> <pre><code>[Sun Aug 25 13:10:51 2013] [error] [client 127.0.0.1] File "/var/www/languageAnalyz/analyz.py", line 22, in getStats [Sun Aug 25 13:10:51 2013] [error] [client 127.0.0.1] flangs=open('config/languages.yml') </code></pre> <p>I try with absolute path, it didn't work too ...</p>
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