我尝试在我的mac pro中安装django并完成安装，但是当我想运行此命令时：
python manage.py runserver
堆栈反馈：
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/core/management/__init__.py", line 338, in execute_from_command_line
utility.execute()
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/core/management/__init__.py", line 330, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/core/management/base.py", line 393, in run_from_argv
self.execute(*args, **cmd_options)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/core/management/base.py", line 444, in execute
output = self.handle(*args, **options)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/core/management/commands/syncdb.py", line 25, in handle
call_command("migrate", **options)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/core/management/__init__.py", line 120, in call_command
return command.execute(*args, **defaults)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/core/management/base.py", line 444, in execute
output = self.handle(*args, **options)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/core/management/commands/migrate.py", line 93, in handle
executor = MigrationExecutor(connection, self.migration_progress_callback)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/migrations/executor.py", line 19, in __init__
self.loader = MigrationLoader(self.connection)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/migrations/loader.py", line 47, in __init__
self.build_graph()
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/migrations/loader.py", line 182, in build_graph
self.applied_migrations = recorder.applied_migrations()
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/migrations/recorder.py", line 59, in applied_migrations
self.ensure_schema()
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/migrations/recorder.py", line 49, in ensure_schema
if self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor()):
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/backends/base/base.py", line 162, in cursor
cursor = self.make_debug_cursor(self._cursor())
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/backends/base/base.py", line 135, in _cursor
self.ensure_connection()
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/backends/base/base.py", line 130, in ensure_connection
self.connect()
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/utils.py", line 97, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/backends/base/base.py", line 130, in ensure_connection
self.connect()
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/backends/base/base.py", line 119, in connect
self.connection = self.get_new_connection(conn_params)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.4-py2.7.egg/django/db/backends/sqlite3/base.py", line 204, in get_new_connection
conn = Database.connect(**conn_params)
django.db.utils.OperationalError: unable to open database file
然后我在python中尝试了我的sqlite3，它有效。 所以我想怎么做呢？