Django manage.py runserver is not working

Question

I am facing problem while trying to start the server using the command

python manage.py runserver 0.0.0.0:8000

It is showing

C:\abc>python manage.py runserver 0.0.0.0:8000
Validating models...

0 errors found
Django version 1.4.9, using settings 'abc.settings'
Development server is running at http://0.0.0.0:8000/
Quit the server with CTRL-BREAK.

But cant access in browser via http://127.0.0.1:8000

It is showing :

Unable to connect

Firefox can't establish a connection to the server at 127.0.0.1:8000.

The site could be temporarily unavailable or too busy. Try again in a few moments.
If you are unable to load any pages, check your computer's network connection.
If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.

But when I am trying the same by

python manage.py runserver 

it is working fine. i can access the application http://127.0.0.1:8000

What can be the issue.

Answer 1

It looks like Port 8000 is in use by your external IP. Please have a look if a process is running and kill it.

You can check the open ports with netstat -a. In Debian you get the PID with netstat -tulpn | grep 8000. The last line should display something like 1234/python. Now kill it with kill 1234.

Alternative you could restart your system ;-)