TypeError at /nova/images_and_snapshots/

object of type 'generator' has no len()
Request Method: GET
Request URL: http://10.3.12.190/nova/images_and_snapshots/
Django Version: 1.4
Exception Type: TypeError
Exception Value: 
object of type 'generator' has no len()
Exception Location: /opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/api/glance.py in image_list_detailed, line 63
Python Executable: /usr/bin/python
Python Version: 2.7.3
Python Path: 
['/opt/stack/horizon/openstack_dashboard/wsgi/../..',
 '/opt/stack/python-keystoneclient',
 '/usr/local/lib/python2.7/dist-packages',
 '/opt/stack/python-novaclient',
 '/opt/stack/python-openstackclient',
 '/opt/stack/keystone',
 '/opt/stack/glance',
 '/opt/stack/python-glanceclient',
 '/opt/stack/nova',
 '/opt/stack/horizon',
 '/usr/lib/python2.7',
 '/usr/lib/python2.7/plat-linux2',
 '/usr/lib/python2.7/lib-tk',
 '/usr/lib/python2.7/lib-old',
 '/usr/lib/python2.7/lib-dynload',
 '/usr/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages/PIL',
 '/usr/lib/pymodules/python2.7',
 '/opt/stack/horizon/openstack_dashboard']
Server time: 星期六, 21 七月 2012 07:39:12 -0500

Traceback Switch to copy-and-paste view

Request information

GET

No GET data

POST

No POST data

FILES

No FILES data

Variable Value
csrftoken 
'5ba0545704dc6ff5749c7d6e0ea8ccf4'
horizon.tabs 
'%7B%22instance_details%22%3A%22%23instance_details__overview%22%7D'
sessionid 
'437b06d43f52d9a3de7b375d51983a86'

META

Variable Value
mod_wsgi.listener_port 
'80'
HTTP_REFERER 
'http://10.3.12.190/nova/instances/'
mod_wsgi.listener_host 
''
SERVER_SOFTWARE 
'Apache/2.2.22 (Ubuntu)'
SCRIPT_NAME 
u''
mod_wsgi.handler_script 
''
SERVER_SIGNATURE 
'<address>Apache/2.2.22 (Ubuntu) Server at 10.3.12.190 Port 80</address>\n'
REQUEST_METHOD 
'GET'
PATH_INFO 
u'/nova/images_and_snapshots/'
SERVER_PROTOCOL 
'HTTP/1.1'
QUERY_STRING 
''
HTTP_ACCEPT_CHARSET 
'GBK,utf-8;q=0.7,*;q=0.3'
HTTP_USER_AGENT 
'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11'
HTTP_CONNECTION 
'keep-alive'
HTTP_COOKIE 
'horizon.tabs=%7B%22instance_details%22%3A%22%23instance_details__overview%22%7D; sessionid=437b06d43f52d9a3de7b375d51983a86; csrftoken=5ba0545704dc6ff5749c7d6e0ea8ccf4'
SERVER_NAME 
'10.3.12.190'
REMOTE_ADDR 
'10.3.11.212'
mod_wsgi.request_handler 
'wsgi-script'
wsgi.url_scheme 
'http'
APACHE_RUN_GROUP 
'user'
PATH_TRANSLATED 
'/opt/stack/horizon/openstack_dashboard/wsgi/django.wsgi/nova/images_and_snapshots/'
SERVER_PORT 
'80'
wsgi.multiprocess 
True
mod_wsgi.input_chunked 
'0'
SERVER_ADDR 
'10.3.12.190'
DOCUMENT_ROOT 
'/opt/stack/horizon/.blackhole/'
mod_wsgi.process_group 
'horizon'
SCRIPT_FILENAME 
'/opt/stack/horizon/openstack_dashboard/wsgi/django.wsgi'
SERVER_ADMIN 
'[no address given]'
wsgi.input 
<mod_wsgi.Input object at 0x7fb38149ce70>
HTTP_HOST 
'10.3.12.190'
wsgi.multithread 
True
mod_wsgi.callable_object 
'application'
HTTP_CACHE_CONTROL 
'max-age=0'
REQUEST_URI 
'/nova/images_and_snapshots/'
HTTP_ACCEPT 
'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8'
wsgi.version 
(1, 1)
GATEWAY_INTERFACE 
'CGI/1.1'
wsgi.run_once 
False
APACHE_RUN_USER 
'user'
wsgi.errors 
<mod_wsgi.Log object at 0x7fb38149cef0>
REMOTE_PORT 
'52290'
HTTP_ACCEPT_LANGUAGE 
'zh-CN,zh;q=0.8'
mod_wsgi.version 
(3, 3)
mod_wsgi.application_group 
''
mod_wsgi.script_reloading 
'1'
wsgi.file_wrapper 
''
CSRF_COOKIE 
'5ba0545704dc6ff5749c7d6e0ea8ccf4'
HTTP_ACCEPT_ENCODING 
'gzip,deflate,sdch'

Settings

Using settings module openstack_dashboard.settings

Setting Value
COMPRESS_URL 
'/static/'
COMPRESS_OUTPUT_DIR 
'dashboard'
MAILER_EMAIL_BACKEND 
'django.core.mail.backends.console.EmailBackend'
USE_L10N 
True
COMPRESS_DATA_URI_MAX_SIZE 
1024
CSRF_COOKIE_SECURE 
False
LANGUAGE_CODE 
'en'
ROOT_URLCONF 
'openstack_dashboard.urls'
MANAGERS 
()
COMPRESS_CSS_HASHING_METHOD 
'hash'
DEFAULT_CHARSET 
'utf-8'
STATIC_ROOT 
'/opt/stack/horizon/static'
COMPRESS_CLOSURE_COMPILER_ARGUMENTS 
''
USE_THOUSAND_SEPARATOR 
False
COMPRESS_OFFLINE_MANIFEST 
'manifest.json'
MESSAGE_STORAGE 
'django.contrib.messages.storage.cookie.CookieStorage'
WSGI_APPLICATION 
None
EMAIL_SUBJECT_PREFIX 
'[Django] '
SEND_BROKEN_LINK_EMAILS 
False
URL_VALIDATOR_USER_AGENT 
'Django/1.4 (https://www.djangoproject.com)'
STATICFILES_FINDERS 
('compressor.finders.CompressorFinder',
 'django.contrib.staticfiles.finders.AppDirectoriesFinder')
COMPRESS_CSSTIDY_ARGUMENTS 
'--template=highest'
SESSION_COOKIE_DOMAIN 
None
SESSION_COOKIE_NAME 
'sessionid'
ADMIN_FOR 
()
TIME_INPUT_FORMATS 
('%H:%M:%S', '%H:%M')
DATABASES 
{'default': {'ENGINE': 'django.db.backends.sqlite3',
             'HOST': '',
             'NAME': '/opt/stack/horizon/openstack_dashboard/local/dashboard_openstack.sqlite3',
             'OPTIONS': {},
             'PASSWORD': u'********************',
             'PORT': '',
             'TEST_CHARSET': None,
             'TEST_COLLATION': None,
             'TEST_MIRROR': None,
             'TEST_NAME': '/opt/stack/horizon/openstack_dashboard/local/test.sqlite3',
             'TIME_ZONE': 'UTC',
             'USER': ''}}
SITE_BRANDING 
'OpenStack Dashboard'
COMPRESS_YUI_BINARY 
'java -jar yuicompressor.jar'
FILE_UPLOAD_PERMISSIONS 
None
FILE_UPLOAD_HANDLERS 
('django.core.files.uploadhandler.MemoryFileUploadHandler',
 'django.core.files.uploadhandler.TemporaryFileUploadHandler')
DEFAULT_CONTENT_TYPE 
'text/html'
COMPRESS_CSS_COMPRESSOR 
'compressor.css.CssCompressor'
APPEND_SLASH 
True
FIRST_DAY_OF_WEEK 
0
DATABASE_ROUTERS 
[]
YEAR_MONTH_FORMAT 
'F Y'
COMPRESS_OFFLINE_TIMEOUT 
31536000
STATICFILES_STORAGE 
'django.contrib.staticfiles.storage.StaticFilesStorage'
CACHES 
{'default': {'BACKEND': 'django.core.cache.backends.dummy.DummyCache',
             'LOCATION': ''}}
SERVER_EMAIL 
'root@localhost'
SESSION_COOKIE_PATH 
'/'
SWIFT_PAGINATE_LIMIT 
100
COMPRESS_PARSER 
'compressor.parser.HtmlParser'
COMPRESS_OFFLINE_CONTEXT 
{'MEDIA_URL': '/media/', 'STATIC_URL': '/static/'}
COMPRESS_CACHE_BACKEND 
'default'
MIDDLEWARE_CLASSES 
('django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'horizon.middleware.HorizonMiddleware',
 'django.middleware.doc.XViewMiddleware',
 'django.middleware.locale.LocaleMiddleware')
USE_I18N 
True
THOUSAND_SEPARATOR 
','
SECRET_KEY 
u'********************'
LANGUAGE_COOKIE_NAME 
'django_language'
DEFAULT_INDEX_TABLESPACE 
''
BIN_DIR 
'/opt/stack/horizon/bin'
TRANSACTIONS_MANAGED 
False
LOGGING_CONFIG 
'django.utils.log.dictConfig'
SIGNING_BACKEND 
'django.core.signing.TimestampSigner'
TEMPLATE_LOADERS 
('django.template.loaders.filesystem.Loader',
 'django.template.loaders.app_directories.Loader',
 'horizon.loaders.TemplateLoader')
OPENSTACK_KEYSTONE_ADMIN_URL 
u'********************'
TEMPLATE_DEBUG 
True
X_FRAME_OPTIONS 
'SAMEORIGIN'
CSRF_COOKIE_NAME 
'csrftoken'
FORCE_SCRIPT_NAME 
None
CACHE_BACKEND 
'dummy://'
COMPRESS_CSSTIDY_BINARY 
'csstidy'
USE_X_FORWARDED_HOST 
False
SESSION_COOKIE_SECURE 
False
COMPRESS_DEBUG_TOGGLE 
'None'
CACHE_MIDDLEWARE_KEY_PREFIX 
u'********************'
COMPRESS_VERBOSE 
False
CSRF_COOKIE_DOMAIN 
None
FILE_CHARSET 
'utf-8'
DEBUG 
True
USE_SSL 
False
SESSION_FILE_PATH 
None
COMPRESS_JS_FILTERS 
['compressor.filters.jsmin.JSMinFilter']
DEFAULT_FILE_STORAGE 
'django.core.files.storage.FileSystemStorage'
INSTALLED_APPS 
('openstack_dashboard',
 'django.contrib.contenttypes',
 'django.contrib.auth',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.humanize',
 'compressor',
 'horizon',
 'horizon.dashboards.nova',
 'horizon.dashboards.syspanel',
 'horizon.dashboards.settings',
 'openstack_auth')
LANGUAGES_BIDI 
('he', 'ar', 'fa')
COMMENTS_ALLOW_PROFANITIES 
False
COMPRESS_YUI_CSS_ARGUMENTS 
''
STATICFILES_DIRS 
()
PREPEND_WWW 
False
SECURE_PROXY_SSL_HEADER 
None
LOCAL_PATH 
'/opt/stack/horizon/openstack_dashboard/local'
SESSION_COOKIE_HTTPONLY 
True
DEBUG_PROPAGATE_EXCEPTIONS 
False
PROD 
False
MONTH_DAY_FORMAT 
'F j'
LOGIN_URL 
'/auth/login/'
SESSION_EXPIRE_AT_BROWSER_CLOSE 
True
OPENSTACK_KEYSTONE_URL 
u'********************'
TIME_FORMAT 
'P'
COMPRESS_STORAGE 
'compressor.storage.CompressorFileStorage'
HORIZON_CONFIG 
{'dashboards': ('nova', 'syspanel', 'settings'),
 'default_dashboard': 'nova',
 'user_home': 'openstack_dashboard.views.user_home'}
DATE_INPUT_FORMATS 
('%Y-%m-%d',
 '%m/%d/%Y',
 '%m/%d/%y',
 '%b %d %Y',
 '%b %d, %Y',
 '%d %b %Y',
 '%d %b, %Y',
 '%B %d %Y',
 '%B %d, %Y',
 '%d %B %Y',
 '%d %B, %Y')
COMPRESS_CSS_FILTERS 
('compressor.filters.css_default.CssAbsoluteFilter',)
AUTHENTICATION_BACKENDS 
('openstack_auth.backend.KeystoneBackend',)
EMAIL_HOST_PASSWORD 
u'********************'
COMPRESS_REBUILD_TIMEOUT 
2592000
PASSWORD_RESET_TIMEOUT_DAYS 
u'********************'
CACHE_MIDDLEWARE_ALIAS 
'default'
ROOT_PATH 
'/opt/stack/horizon/openstack_dashboard'
SESSION_SAVE_EVERY_REQUEST 
False
ADMIN_MEDIA_PREFIX 
'/static/admin/'
NUMBER_GROUPING 
0
SESSION_ENGINE 
'django.contrib.sessions.backends.cached_db'
CSRF_FAILURE_VIEW 
'django.views.csrf.csrf_failure'
CSRF_COOKIE_PATH 
'/'
COMPRESS_CACHE_KEY_FUNCTION 
u'********************'
LOGIN_REDIRECT_URL 
'/'
DECIMAL_SEPARATOR 
'.'
COMPRESS_PRECOMPILERS 
(('text/less', '/opt/stack/horizon/bin/less/lessc {infile} {outfile}'),)
COMPRESS_MTIME_DELAY 
10
SITE_ID 
1
LOCALE_PATHS 
()
TEMPLATE_STRING_IF_INVALID 
''
LOGOUT_URL 
'/auth/logout/'
EMAIL_USE_TLS 
False
TEMPLATE_DIRS 
('/opt/stack/horizon/openstack_dashboard/templates',)
FIXTURE_DIRS 
()
EMAIL_HOST 
'localhost'
DATE_FORMAT 
'N j, Y'
MEDIA_ROOT 
'/opt/stack/horizon/media'
DEFAULT_EXCEPTION_REPORTER_FILTER 
'horizon.exceptions.HorizonReporterFilter'
ADMINS 
()
FORMAT_MODULE_PATH 
None
DEFAULT_FROM_EMAIL 
'webmaster@localhost'
COMPRESS_ROOT 
'/opt/stack/horizon/static'
MEDIA_URL 
'/media/'
DATETIME_FORMAT 
'N j, Y, P'
COMPRESS_YUI_JS_ARGUMENTS 
''
OPENSTACK_KEYSTONE_BACKEND 
u'********************'
OPENSTACK_KEYSTONE_DEFAULT_ROLE 
u'********************'
COMPRESS_JS_COMPRESSOR 
'compressor.js.JsCompressor'
DISALLOWED_USER_AGENTS 
()
ALLOWED_INCLUDE_ROOTS 
()
COMPRESS_MINT_DELAY 
30
LOGGING 
{'disable_existing_loggers': False,
 'filters': {'require_debug_false': {'()': 'django.utils.log.RequireDebugFalse'}},
 'handlers': {'mail_admins': {'class': 'django.utils.log.AdminEmailHandler',
                              'filters': ['require_debug_false'],
                              'level': 'ERROR'}},
 'loggers': {'django.request': {'handlers': ['mail_admins'],
                                'level': 'ERROR',
                                'propagate': True}},
 'version': 1}
SHORT_DATE_FORMAT 
'm/d/Y'
TEST_RUNNER 
'django_nose.NoseTestSuiteRunner'
COMPRESS_ENABLED 
True
IGNORABLE_404_URLS 
()
COMPRESS_OFFLINE 
False
TIME_ZONE 
'America/Chicago'
FILE_UPLOAD_MAX_MEMORY_SIZE 
2621440
EMAIL_BACKEND 
'django.core.mail.backends.console.EmailBackend'
DEFAULT_TABLESPACE 
''
TEMPLATE_CONTEXT_PROCESSORS 
('django.core.context_processors.debug',
 'django.core.context_processors.i18n',
 'django.core.context_processors.request',
 'django.core.context_processors.media',
 'django.core.context_processors.static',
 'django.contrib.messages.context_processors.messages',
 'horizon.context_processors.horizon')
OPENSTACK_HOST 
'127.0.0.1'
SESSION_COOKIE_AGE 
1209600
SETTINGS_MODULE 
'openstack_dashboard.settings'
USE_ETAGS 
False
LANGUAGES 
(('en', 'English'),
 ('it', 'Italiano'),
 ('es', 'Spanish'),
 ('fr', 'French'),
 ('ja', 'Japanese'),
 ('pt', 'Portuguese'),
 ('pl', 'Polish'),
 ('zh-cn', 'Simplified Chinese'),
 ('zh-tw', 'Traditional Chinese'))
COMPRESS_CLOSURE_COMPILER_BINARY 
'java -jar compiler.jar'
FILE_UPLOAD_TEMP_DIR 
None
INTERNAL_IPS 
()
STATIC_URL 
'/static/'
EMAIL_PORT 
25
USE_TZ 
True
SHORT_DATETIME_FORMAT 
'm/d/Y P'
PASSWORD_HASHERS 
u'********************'
ABSOLUTE_URL_OVERRIDES 
{}
CACHE_MIDDLEWARE_SECONDS 
600
DATETIME_INPUT_FORMATS 
('%Y-%m-%d %H:%M:%S',
 '%Y-%m-%d %H:%M:%S.%f',
 '%Y-%m-%d %H:%M',
 '%Y-%m-%d',
 '%m/%d/%Y %H:%M:%S',
 '%m/%d/%Y %H:%M:%S.%f',
 '%m/%d/%Y %H:%M',
 '%m/%d/%Y',
 '%m/%d/%y %H:%M:%S',
 '%m/%d/%y %H:%M:%S.%f',
 '%m/%d/%y %H:%M',
 '%m/%d/%y')
EMAIL_HOST_USER 
''
PROFANITIES_LIST 
u'********************'

You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 500 page.