Development server errors

[pbzrpa@…]

Hi, I am running django 1.3.0 final, python 2.6.5, ubuntu 10.04 server, mysql 5.1.41. Note that I have this issue when running the development server ( python manage.py runserver). I have had this issue on other servers too. Every few times when saving files and the server starts to revalidate models it throws out the following exception. It does not stop the server from running but does cause the first page request to fail.

Development server is running at http://x.x.x.x:9206/
Quit the server with CONTROL-C.
Unhandled exception in thread started by <bound method Command.inner_run of <django.contrib.staticfiles.management.commands.runserver.Command object at 0x9de50cc>>
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/apport_python_hook.py", line 48, in apport_excepthook
    if not enabled():
TypeError: 'NoneType' object is not callable

Original exception was:
Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/django/core/management/commands/runserver.py", line 107, in inner_run
    run(self.addr, int(self.port), handler, ipv6=self.use_ipv6)
  File "/usr/local/lib/python2.6/dist-packages/django/core/servers/basehttp.py", line 696, in run
    httpd.serve_forever()
  File "/usr/lib/python2.6/SocketServer.py", line 224, in serve_forever
    r, w, e = select.select([self], [], [], poll_interval)
AttributeError: 'NoneType' object has no attribute 'select'
Validating models...

0 errors found
Django version 1.3, using settings 'x'
Development server is running at http://x.x.x.x:9206/
Quit the server with CONTROL-C.

I am not sure if my application has simply become too big for django and it does not manage to revalidate all the stuff before trying to serve the request.

[Jannis Leidel]

Not sure what causes that, but others have it on Python 2.6.X, too:

​http://trac.edgewall.org/ticket/3957
​http://trac.edgewall.org/ticket/9960

[anonymous]

I have this problem as well. Running same as above except Django 1.4.2

[mardini]

I'm closing it since the bug is no longer relevant.