无法消除 django-cms 产生的警告

Question

我使用 djangocms-installer 脚本安装了 Django-cms，除了每次启动服务器、使用 manage.py 执行任何操作，甚至执行一个 manage.py 选项卡自动完成（最烦人的）！所以我想我会使用warnings模块来消除警告：

# in manage.py, just after `import os; import sys`:
import warnings
warnings.filterwarnings("ignore")

我想更具体地了解静音，但事实证明，即使是这个简单的案例也没有做任何事情，仍然会显示警告！我做错了什么？！

警告：

/Users/fran/.virtualenvs/dkde2015/lib/python2.7/site-packages/cms/publisher/manager.py:5: RemovedInDjango18Warning: `PublisherManager.get_query_set` method should be renamed `get_queryset`.
  class PublisherManager(models.Manager):

/Users/fran/.virtualenvs/dkde2015/lib/python2.7/site-packages/cms/models/managers.py:15: RemovedInDjango18Warning: `PageManager.get_query_set` method should be renamed `get_queryset`.
  class PageManager(PublisherManager):

/Users/fran/.virtualenvs/dkde2015/lib/python2.7/site-packages/cms/admin/change_list.py:39: RemovedInDjango18Warning: `CMSChangeList.get_query_set` method should be renamed `get_queryset`.
  class CMSChangeList(ChangeList):

/Users/fran/.virtualenvs/dkde2015/lib/python2.7/site-packages/cms/admin/forms.py:340: RemovedInDjango18Warning: Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is deprecated - form PagePermissionInlineAdminForm needs updating
  class PagePermissionInlineAdminForm(forms.ModelForm):

/Users/fran/.virtualenvs/dkde2015/lib/python2.7/site-packages/cms/admin/forms.py:442: RemovedInDjango18Warning: Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is deprecated - form ViewRestrictionInlineAdminForm needs updating
  class ViewRestrictionInlineAdminForm(PagePermissionInlineAdminForm):

/Users/fran/.virtualenvs/dkde2015/lib/python2.7/site-packages/cms/admin/forms.py:491: RemovedInDjango18Warning: Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is deprecated - form PageUserForm needs updating
  class PageUserForm(UserCreationForm, GenericCmsPermissionForm):

/Users/fran/.virtualenvs/dkde2015/lib/python2.7/site-packages/django/forms/widgets.py:143: RemovedInDjango18Warning: `PagePermissionInlineAdmin.queryset` method should be renamed `get_queryset`.
  .__new__(mcs, name, bases, attrs))

/Users/fran/.virtualenvs/dkde2015/lib/python2.7/site-packages/django/forms/widgets.py:143: RemovedInDjango18Warning: `ViewRestrictionInlineAdmin.queryset` method should be renamed `get_queryset`.
  .__new__(mcs, name, bases, attrs))

/Users/fran/.virtualenvs/dkde2015/lib/python2.7/site-packages/django/forms/widgets.py:143: RemovedInDjango18Warning: `PageUserAdmin.queryset` method should be renamed `get_queryset`.
  .__new__(mcs, name, bases, attrs))

Answer 1

解决这个问题的外科手术方法是创建一个日志过滤器，它只会过滤掉明确指定为静音的警告。你知道的：

错误绝不应该悄无声息地过去。
除非明确静音。

---

考虑到这一点，这是我的过滤器机器，全部在settings.py（现在无论如何）：

MY_IGNORED_WARNINGS = {
    'RemovedInDjango18Warning: `PublisherManager.get_query_set`',
    'RemovedInDjango18Warning: `PageManager.get_query_set`',
    'RemovedInDjango18Warning: `CMSChangeList.get_query_set`',
    'form PagePermissionInlineAdminForm needs updating',
    'form ViewRestrictionInlineAdminForm needs updating',
    'form PageUserForm needs updating',
    '/cms/admin/placeholderadmin.py:133: RemovedInDjango18Warning: Options.module_name has been deprecated',
    '/cms/admin/settingsadmin.py:28: RemovedInDjango18Warning: Options.module_name has been deprecated',
    '/cms/admin/pageadmin.py:111: RemovedInDjango18Warning: Options.module_name has been deprecated',
    'RemovedInDjango18Warning: `PagePermissionInlineAdmin.queryset',
    'RemovedInDjango18Warning: `ViewRestrictionInlineAdmin.queryset`',
    'RemovedInDjango18Warning: `PageUserAdmin.queryset`',

}

def filter_djangocms_warnings(record):
    for ignored in MY_IGNORED_WARNINGS:
        if ignored in record.args[0]:
            return False
    return True

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'console': {
            'class': 'logging.StreamHandler',
        },
    },
    'filters': {
        'ignore_djangocms_warnings': {
            '()': 'django.utils.log.CallbackFilter',
            'callback': filter_djangocms_warnings,
        },
    },
    'loggers': {
        'py.warnings': {
            'handlers': ['console', ],
            'filters': ['ignore_djangocms_warnings', ],
        }
    },
}

我想它可以进一步完善......有什么想法吗？

---

何必呢？

首先，我现在可以（再次）使用django bash autocomplete，而不会在每次按 [tab] 时回显一堆警告。

另外，既然我没有来自 DjangoCMS 的 20 多个警告，我实际上可以看到来自我自己的代码的警告并修复它。

Answer 2

这实际上与 Django CMS 无关，尽管您可能会看到 Django CMS 使用的模块发出的警告。

原因是 Django >= 1.5.x 根据 change 将所有警告路由到日志系统。因此，要在 Django 中禁用警告，您必须为 py.warnings 添加一个记录器（如 Python 的 warning module 中所述）：

# settings.py
LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
         'null': {
           'level': 'DEBUG',
           'class': 'logging.NullHandler',
         }
     },
    'loggers': {
         'py.warnings': {
             'propagate': False,
             'handlers': ['null']
          }
     },
}

Answer 3

您可以使用-W 标志来过滤警告。

python -W ignore manage.py runserver