title: uWSGI server does not respond
body: <p>I'm trying to run a Django application using Nginx + uWSGI with no success.
  After hours of googling and debugging I made the simplest possible uwsgi configuration that must work:</p>
  
  <pre><code>$ uwsgi --http 127.0.0.1:8000 --wsgi-file test.py
  </code></pre>
  
  <p>Where test.py is</p>
  
  <pre><code>def application(env, start_response):
      start_response('200 OK', [('Content-Type','text/html')])
      return "Hello World"
  </code></pre>
  
  <p>The problem is: it doesn't. A wget call on the same machine hangs:</p>
  
  <pre><code>$ wget http://127.0.0.1:8000
  --2013-04-28 12:43:36--  http://127.0.0.1:8000/
  Connecting to 127.0.0.1:8000... connected.
  HTTP request sent, awaiting response... 
  </code></pre>
  
  <p>uWSGI output is silent (except for initial information):</p>
  
  <pre><code>*** Starting uWSGI 1.9.8 (32bit) on [Sun Apr 28 12:43:56 2013] ***
  compiled with version: 4.4.5 on 28 April 2013 06:22:28
  os: Linux-2.6.27-ovz-4 #1 SMP Mon Apr 27 00:26:17 MSD 2009
  ...
  </code></pre>
  
  <p>The connection is in fact established, because killing uWSGI aborts wget.</p>
  
  <p>Probably uWSGI isn't detailed enough about occurred errors, or I must've missed something.
  Any tip of where to look further is appreciated.</p>
  
  <h3>Update:</h3>
  
  <p>More system details: Debian 6.0.7, Python 2.6.6.</p>
  
  <p>A full uWSGI log on start:</p>
  
  <pre><code>$ uwsgi --http 127.0.0.1:8000 --wsgi-file test.py
  *** Starting uWSGI 1.9.8 (32bit) on [Mon Apr 29 04:50:03 2013] ***
  compiled with version: 4.4.5 on 28 April 2013 06:22:28
  os: Linux-2.6.27-ovz-4 #1 SMP Mon Apr 27 00:26:17 MSD 2009
  nodename: max.local
  machine: i686
  clock source: unix
  detected number of CPU cores: 4
  current working directory: /home/user/dir
  detected binary path: /home/user/dir/env/ENV/bin/uwsgi
  *** WARNING: you are running uWSGI without its master process manager ***
  your memory page size is 4096 bytes
  detected max file descriptor number: 1024
  lock engine: pthread robust mutexes
  uWSGI http bound on 127.0.0.1:8000 fd 4
  spawned uWSGI http 1 (pid: 19523)
  uwsgi socket 0 bound to TCP address 127.0.0.1:57919 (port auto-assigned) fd 3
  Python version: 2.6.6 (r266:84292, Dec 27 2010, 00:18:12)  [GCC 4.4.5]
  *** Python threads support is disabled. You can enable it with --enable-threads ***
  Python main interpreter initialized at 0x80f6240
  your server socket listen backlog is limited to 100 connections
  your mercy for graceful operations on workers is 60 seconds
  mapped 63944 bytes (62 KB) for 1 cores
  *** Operational MODE: single process ***
  WSGI app 0 (mountpoint='') ready in 0 seconds on interpreter 0x80f6240 pid: 19522 (default app)
  *** uWSGI is running in multiple interpreter mode ***
  spawned uWSGI worker 1 (and the only) (pid: 19522, cores: 1)
  </code></pre>
  
  <p>And nothing else is ever printed.</p>