不能在Django中运行manage.py runserver

我无法启动manage.py runserver。我正在使用卡桑德拉数据库，我已经导入了所有所需的模块。我正在试着运行一个非常基本的应用程序。

我在windows 10上运行python 2.7。下面是我得到的错误:

C:UsersAdityaDesktoptry_cassandratry_cass>manage.py runserver
C:Python27libsite-packagesdjangodbutils.py:238: RemovedInDjango19Warning: In Django 1.9 the TEST_NAME connection setting will be moved to a NAME entry in the TEST setting
  self.prepare_test_settings(alias)
C:Python27libsite-packagesdjangodbutils.py:238: RemovedInDjango19Warning: In Django 1.9 the TEST_NAME connection setting will be moved to a NAME entry in the TEST setting
  self.prepare_test_settings(alias)
Performing system checks...
System check identified no issues (0 silenced).
Unhandled exception in thread started by <function wrapper at 0x0454D030>
Traceback (most recent call last):
  File "C:Python27libsite-packagesdjangoutilsautoreload.py", line 229, in wrapper
    fn(*args, **kwargs)
  File "C:Python27libsite-packagesdjangocoremanagementcommandsrunserver.py", line 116, in inner_run
    self.check_migrations()
  File "C:Python27libsite-packagesdjangocoremanagementcommandsrunserver.py", line 168, in check_migrations
    executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
  File "C:Python27libsite-packagesdjangodbmigrationsexecutor.py", line 19, in __init__
    self.loader = MigrationLoader(self.connection)
  File "C:Python27libsite-packagesdjangodbmigrationsloader.py", line 47, in __init__
    self.build_graph()
  File "C:Python27libsite-packagesdjangodbmigrationsloader.py", line 182, in build_graph
    self.applied_migrations = recorder.applied_migrations()
  File "C:Python27libsite-packagesdjangodbmigrationsrecorder.py", line 60, in applied_migrations
    return set(tuple(x) for x in self.migration_qs.values_list("app", "name"))
  File "C:Python27libsite-packagesdjangodbmodelsquery.py", line 162, in __iter__
    self._fetch_all()
  File "C:Python27libsite-packagesdjangodbmodelsquery.py", line 965, in _fetch_all
    self._result_cache = list(self.iterator())
  File "C:Python27libsite-packagesdjangodbmodelsquery.py", line 1220, in iterator
    for row in compiler.results_iter():
  File "C:Python27libsite-packagesdjangodbmodelssqlcompiler.py", line 794, in results_iter
    results = self.execute_sql(MULTI)
  File "C:Python27libsite-packagesdjangodbmodelssqlcompiler.py", line 829, in execute_sql
    sql, params = self.as_sql()
  File "C:Python27libsite-packagesdjangodbmodelssqlcompiler.py", line 378, in as_sql
    extra_select, order_by, group_by = self.pre_sql_setup()
  File "C:Python27libsite-packagesdjangodbmodelssqlcompiler.py", line 48, in pre_sql_setup
    self.setup_query()
  File "C:Python27libsite-packagesdjangodbmodelssqlcompiler.py", line 39, in setup_query
    self.select, self.klass_info, self.annotation_col_map = self.get_select()
  File "C:Python27libsite-packagesdjangodbmodelssqlcompiler.py", line 219, in get_select
    ret.append((col, self.compile(col, select_format=True), alias))
  File "C:Python27libsite-packagesdjangodbmodelssqlcompiler.py", line 357, in compile
    sql, params = node.as_sql(self, self.connection)
  File "C:Python27libsite-packagesdjangodbmodelsexpressions.py", line 619, in as_sql
    return "%s.%s" % (qn(self.alias), qn(self.target.column)), []
  File "C:Python27libsite-packagesdjangodbmodelssqlcompiler.py", line 348, in quote_name_unless_alias
    r = self.connection.ops.quote_name(name)
  File "C:Python27libsite-packagesdjangodbbackendsbaseoperations.py", line 317, in quote_name
    raise NotImplementedError('subclasses of BaseDatabaseOperations may require a quote_name() method')
NotImplementedError: subclasses of BaseDatabaseOperations may require a quote_name() method

以下是我在settings.py中的数据库设置:

DATABASES = {
    'default': {
        'ENGINE': 'django_cassandra_engine',
        'NAME': 'db',
        'TEST_NAME': 'test_db',
        'HOST': '127.0.0.1',
        'OPTIONS': {
            'replication': {
                'strategy_class': 'SimpleStrategy',
                'replication_factor': 1
            }
        }
    }
}

尝试删除INSTALLED_APPS is settings.py中列出的值

删除 django.contrib。staticfiles为我做到了这一点，或者将django_cassandra_engine放在INSTALLED_APPS列表的顶部

你的错误与django-cassandra-engine后端没有实现quote_name方法有关。这是一种方法，当表或字段名包含不规则字符时，它只在表或字段名周围加上引号。最简单的修复方法可能是检查所有的表和字段名，并确保只有ASCII字符而没有其他字符(例如，您是否使用unicode字符?)。

如果这不起作用，你的其他选择是:

自己修复问题:clone &手动安装django-cassandra-engine，然后在base/operations.py中添加quote_name的实现。身体需要像return '"%s"' % name一样简单。如果你这样做，它的工作，你可以提交一个pull请求获得永久修复。

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