http://www.cnblogs.com/wj110reg/archive/2009/07/24/1530252.html
1.打开debug配置
2.新建一个调试
3.选择manager.py文件
4.在Arguments tab 中添加runserver –noreload
5.在Environment tab 添加两个变量：
DJANGO_SETTINGS_MODULE：settings
PYTHONPATH： $PWD
6配置完成，在Debug中运行新建的调试。
原文：
In order to debug, the preferred way for me, is to do it through the Eclipse with PyDev configured for Django. To do this, we need a couple more of adjustments in order to get the django runserver running properly.
We go the main menu and we select the Open Run Dialogue... window, there we select on the left Python Run and on the Main tab to the right we select the project where we are going to make the debugging: /some/path/to/sources/manage.py.
In the Arguments tab we add the Program Arguments: runserver --noreload and then we finally select the Environment tab where we add the DJANGO_SETTINGS_MODULE set to value settings and PYTHONPATH set to value $PWD. Click Apply and Run.
If you look at the console view, you will see the runserver output which indicates that all is well:
Validating models...
0 errors found
Django version 0.97-pre-SVN-unknown, using settings 'txm.settings'
Development server is running at [url]http://127.0.0.1:8000/[/url]
Quit the server with CONTROL-C.