我不得不更改模型的名称，现在出现此错误：
Traceback:
File "/usr/lib/python2.7/dist-packages/django/core/handlers/exception.py" in inner
41. response = get_response(request)
File "/usr/lib/python2.7/dist-packages/django/core/handlers/base.py" in _legacy_get_response
249. response = self._get_response(request)
File "/usr/lib/python2.7/dist-packages/django/core/handlers/base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "/usr/lib/python2.7/dist-packages/django/core/handlers/base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/django/django_project/personal/views.py" in delete_mobile
134. Chart.objects.filter(id=pk).delete()
File "/usr/lib/python2.7/dist-packages/django/db/models/query.py" in delete
617. deleted, _rows_count = collector.delete()
File "/usr/lib/python2.7/dist-packages/django/db/models/deletion.py" in delete
284. count = qs._raw_delete(using=self.using)
File "/usr/lib/python2.7/dist-packages/django/db/models/query.py" in _raw_delete
631. return sql.DeleteQuery(self.model).delete_qs(self, using)
File "/usr/lib/python2.7/dist-packages/django/db/models/sql/subqueries.py" in delete_qs
80. cursor = self.get_compiler(using).execute_sql(CURSOR)
File "/usr/lib/python2.7/dist-packages/django/db/models/sql/compiler.py" in execute_sql
899. raise original_exception
Exception Type: OperationalError at /mobiles/delete/135
Exception Value: attempt to write a readonly database
我尝试重置数据库，但没有帮助，我该怎么办？
感谢您的任何帮助
用以下方法解决：
sudo chmod a+w db.sqlite3