I've just recently switched over to using 64-bit Python 2.6.1 on Mac OS X 10.6 (Snow Leopard). IPython won't work with Django anymore, but IPython works from the command-line. The error says: shell = IPython.Shell.IPShell(argv=[]) AttributeError: 'module' object has no attribute 'Shell' I could use the ./manage.py --plain option, but it's not really a fix. Any help very gratefully received!