照着官网的教程一步一步做的，到第五步关于test，运行manage.py test polls 时，出现错误：
/usr/local/lib/python2.7/dist-packages/django/db/backends/sqlite3/base.py:366: UnicodeWarning: Unicode unequal comparison failed to convert both arguments to Unicode - interpreting them as being unequal
if self.settings_dict['NAME'] != ":memory:":

求大神

自挽