1 ImportError: Settings cannot be imported, because environment variable DJANGO_SETTINGS_MODULE is undefined.
$ which python2.7
/usr/bin/python2.7
$ export PYTHONPATH=/usr/bin/python2.7:~/(projectname)
$ export DJANGO_SETTINGS_MODULE=(appname).settings
把上面2行加到 ~/.profile文件中就可以永久的解决这个问题了