/usr/lib/python2.4/site-packages/myproject$ django-admin.py runserver
Traceback (most recent call last):
  File "/usr/bin/django-admin.py", line 5, in ?
    pkg_resources.run_script('Django==0.90', 'django-admin.py')
  File "/usr/lib/python2.4/site-packages/setuptools-0.6a9-py2.4.egg/pkg_resources.py", line 407, in run_script
    self.require(requires)[0].run_script(script_name, ns)
  File "/usr/lib/python2.4/site-packages/setuptools-0.6a9-py2.4.egg/pkg_resources.py", line 920, in run_script
    execfile(script_filename, namespace, namespace)
  File "/usr/lib/python2.4/site-packages/Django-0.90-py2.4.egg/EGG-INFO/scripts/django-admin.py", line 139, in ?
    main()
  File "/usr/lib/python2.4/site-packages/Django-0.90-py2.4.egg/EGG-INFO/scripts/django-admin.py", line 81, in main
    translation.activate('en-us')
  File "/usr/lib/python2.4/site-packages/Django-0.90-py2.4.egg/django/utils/translation.py", line 192, in activate
    _active[currentThread()] = translation(language)
  File "/usr/lib/python2.4/site-packages/Django-0.90-py2.4.egg/django/utils/translation.py", line 111, in translation
    from django.conf import settings
  File "/usr/lib/python2.4/site-packages/Django-0.90-py2.4.egg/django/conf/settings.py", line 29, in ?
    raise EnvironmentError, "Environment variable %s is undefined." % ENVIRONMENT_VARIABLE
EnvironmentError: Environment variable DJANGO_SETTINGS_MODULE is undefined.