我现在已经使用PostgreSQL设置了3台服务器，到目前为止还没有看到这个问题。我现在正在设置第一台没有在丹麦服务器上运行的服务器，并且从Web访问数据库时我开始出错。
我可以毫无问题地使用createsuperuser，它创建了我的超级用户。但是，当我尝试使用它登录我的网站时，我收到错误。
File "/usr/lib64/python3.4/site-packages/django/db/models/sql/compiler.py", line 1239, in cursor_iter
sentinel):
File "/usr/lib64/python3.4/site-packages/django/db/models/sql/compiler.py", line 1238, in <lambda>
for rows in iter((lambda: cursor.fetchmany(GET_ITERATOR_CHUNK_SIZE)),
File "/usr/lib64/python3.4/site-packages/django/db/utils.py", line 102, in inner
return func(*args, **kwargs)
File "/usr/lib64/python3.4/site-packages/django/db/backends/postgresql/utils.py", line 6, in utc_tzinfo_factory
raise AssertionError("database connection isn't set to UTC")
AssertionError: database connection isn't set to UTC
我一直在查看代码，错误来自此代码。
from django.utils.timezone import utc
def utc_tzinfo_factory(offset):
if offset != 0:
raise AssertionError("database connection isn't set to UTC")
return utc
虽然我找不到偏移量的起始位置，但我无法弄清楚Django如何判断偏移是否已关闭。
我的postgresql数据库的时区设置为UTC，并验证了django文档中写的所有postgresql参数，现在我已经知道为什么会发生这种情况。
我希望有人可以提供帮助吗？
python3.4 -V：Python 3.4.3
psql -V：psql（PostgreSQL）9.2.15
django-admin --version：1.9.2
更新11 / 8-2016 - 来自DEBUG视图的完整堆栈
我在utc_tzinfo_factory中找到了偏移量的值，它的值为120.虽然我无法解释它是如何或为何获得此值。
以下是Django调试页面的副本，其中包含完整堆栈和变量的错误。
Environment:
Request Method: POST
Request URL: http://myweb.dk/accounts/login/
Django Version: 1.9.2
Python Version: 3.4.3
Installed Applications:
['polls.apps.PollsConfig',
'teamTournamentApp.apps.TeamtournamentappConfig',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback:
File "/usr/lib64/python3.4/site-packages/django/core/handlers/base.py" in get_response
149. response = self.process_exception_by_middleware(e, request)
File "/usr/lib64/python3.4/site-packages/django/core/handlers/base.py" in get_response
147. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/lib64/python3.4/site-packages/django/contrib/auth/views.py" in inner
49. return func(*args, **kwargs)
File "/usr/lib64/python3.4/site-packages/django/views/decorators/debug.py" in sensitive_post_parameters_wrapper
76. return view(request, *args, **kwargs)
File "/usr/lib64/python3.4/site-packages/django/utils/decorators.py" in _wrapped_view
149. response = view_func(request, *args, **kwargs)
File "/usr/lib64/python3.4/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
57. response = view_func(request, *args, **kwargs)
File "/usr/lib64/python3.4/site-packages/django/contrib/auth/views.py" in login
69. if form.is_valid():
File "/usr/lib64/python3.4/site-packages/django/forms/forms.py" in is_valid
161. return self.is_bound and not self.errors
File "/usr/lib64/python3.4/site-packages/django/forms/forms.py" in errors
153. self.full_clean()
File "/usr/lib64/python3.4/site-packages/django/forms/forms.py" in full_clean
363. self._clean_form()
File "/usr/lib64/python3.4/site-packages/django/forms/forms.py" in _clean_form
390. cleaned_data = self.clean()
File "/usr/lib64/python3.4/site-packages/django/contrib/auth/forms.py" in clean
159. password=password)
File "/usr/lib64/python3.4/site-packages/django/contrib/auth/__init__.py" in authenticate
74. user = backend.authenticate(**credentials)
File "/usr/lib64/python3.4/site-packages/django/contrib/auth/backends.py" in authenticate
17. user = UserModel._default_manager.get_by_natural_key(username)
File "/usr/lib64/python3.4/site-packages/django/contrib/auth/base_user.py" in get_by_natural_key
45. return self.get(**{self.model.USERNAME_FIELD: username})
File "/usr/lib64/python3.4/site-packages/django/db/models/manager.py" in manager_method
122. return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/usr/lib64/python3.4/site-packages/django/db/models/query.py" in get
381. num = len(clone)
File "/usr/lib64/python3.4/site-packages/django/db/models/query.py" in __len__
240. self._fetch_all()
File "/usr/lib64/python3.4/site-packages/django/db/models/query.py" in _fetch_all
1074. self._result_cache = list(self.iterator())
File "/usr/lib64/python3.4/site-packages/django/db/models/query.py" in __iter__
68. for row in compiler.results_iter(results):
File "/usr/lib64/python3.4/site-packages/django/db/models/sql/compiler.py" in results_iter
805. for rows in results:
File "/usr/lib64/python3.4/site-packages/django/db/models/sql/compiler.py" in cursor_iter
1239. sentinel):
File "/usr/lib64/python3.4/site-packages/django/db/models/sql/compiler.py" in <lambda>
1238. for rows in iter((lambda: cursor.fetchmany(GET_ITERATOR_CHUNK_SIZE)),
File "/usr/lib64/python3.4/site-packages/django/db/utils.py" in inner
102. return func(*args, **kwargs)
File "/usr/lib64/python3.4/site-packages/django/db/backends/postgresql/utils.py" in utc_tzinfo_factory
6. raise AssertionError("database connection isn't set to UTC")
Exception Type: AssertionError at /accounts/login/
Exception Value: database connection isn't set to UTC
Request information
GET
No GET data
POST
Variable Value
next
''
password
'xxxxxxx'
username
'admin'
csrfmiddlewaretoken
'f8E50d9kpS2j4Wlc7O9KsKtUXHxbuX58'
FILES
No FILES data
COOKIES
Variable Value
_ga
'GA1.2.1308578855.1465289038'
csrftoken
'f8E50d9kpS2j4Wlc7O9KsKtUXHxbuX58'
META
Variable Value
UNIQUE_ID
'xxxxx'
HTTP_USER_AGENT
('Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like '
'Gecko) Chrome/51.0.2704.103 Safari/537.36')
mod_wsgi.total_requests
1
REMOTE_ADDR
'xx.yy.zz.tt'
mod_wsgi.handler_script
''
mod_wsgi.script_name
''
HTTP_ACCEPT
'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'
REQUEST_SCHEME
'http'
mod_wsgi.script_start
'1470934394985429'
HTTP_REFERER
'http://myweb.dk/accounts/login/'
mod_wsgi.version
(4, 5, 3)
SERVER_PROTOCOL
'HTTP/1.1'
HTTP_HOST
'myweb.dk'
wsgi.url_scheme
'http'
HTTP_ACCEPT_ENCODING
'gzip, deflate'
PATH_INFO
'/accounts/login/'
wsgi.multiprocess
True
HTTP_CONNECTION
'keep-alive'
mod_wsgi.listener_port
'80'
mod_wsgi.path_info
'/accounts/login/'
CONTEXT_DOCUMENT_ROOT
'/var/www/vhosts/default/htdocs'
REMOTE_PORT
'59723'
wsgi.errors
<_io.TextIOWrapper encoding='utf-8'>
mod_wsgi.callable_object
'application'
SCRIPT_NAME
''
REQUEST_URI
'/accounts/login/'
SCRIPT_FILENAME
'/var/www/vhosts/myweb.dk/httpdocs/TeamTournament/TeamTournament/wsgi.py'
SERVER_ADMIN
'.....'
mod_wsgi.request_start
'1470934394985053'
mod_wsgi.listener_host
''
mod_wsgi.enable_sendfile
'0'
HTTP_UPGRADE_INSECURE_REQUESTS
'1'
mod_wsgi.script_reloading
'1'
SERVER_SIGNATURE
''
mod_wsgi.application_group
'myweb.dk|'
mod_wsgi.thread_requests
0
wsgi.input
<mod_wsgi.Input object at 0x7f6266286920>
QUERY_STRING
''
SERVER_ADDR
'xx.yy.zz.tt'
wsgi.multithread
True
wsgi.version
(1, 0)
CONTEXT_PREFIX
''
wsgi.run_once
False
REQUEST_METHOD
'POST'
HTTP_ORIGIN
'http://myweb.dk'
SERVER_NAME
'myweb.dk'
mod_wsgi.request_handler
'wsgi-script'
mod_wsgi.process_group
''
CONTENT_TYPE
'application/x-www-form-urlencoded'
HTTP_CACHE_CONTROL
'max-age=0'
SERVER_SOFTWARE
'Apache'
HTTP_COOKIE
'_ga=GA1.2.1308578855.1465289038; csrftoken=f8E50d9kpS2j4Wlc7O9KsKtUXHxbuX58'
HTTP_ACCEPT_LANGUAGE
'da-DK,da;q=0.8,en-US;q=0.6,en;q=0.4,sv;q=0.2'
SERVER_PORT
'80'
wsgi.file_wrapper
''
apache.version
(2, 4, 6)
PATH_TRANSLATED
'/var/www/vhosts/myweb.dk/httpdocs/TeamTournament/TeamTournament/wsgi.py/accounts/login/'
CONTENT_LENGTH
'91'
mod_wsgi.thread_id
2
CSRF_COOKIE
'f8E50d9kpS2j4Wlc7O9KsKtUXHxbuX58'
GATEWAY_INTERFACE
'CGI/1.1'
DOCUMENT_ROOT
'/var/www/vhosts/default/htdocs'
Settings
Using settings module TeamTournament.settings
Setting Value
LOGIN_REDIRECT_URL
'/accounts/profile/'
FILE_UPLOAD_HANDLERS
['django.core.files.uploadhandler.MemoryFileUploadHandler',
'django.core.files.uploadhandler.TemporaryFileUploadHandler']
SECURE_SSL_HOST
None
DATETIME_FORMAT
'N j, Y, P'
EMAIL_HOST
'localhost'
SESSION_COOKIE_PATH
'/'
FORMAT_MODULE_PATH
None
DEFAULT_TABLESPACE
''
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']
TEMPLATE_DIRS
[]
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']
FILE_UPLOAD_DIRECTORY_PERMISSIONS
None
FILE_UPLOAD_MAX_MEMORY_SIZE
2621440
FIRST_DAY_OF_WEEK
0
STATICFILES_STORAGE
'django.contrib.staticfiles.storage.StaticFilesStorage'
SESSION_ENGINE
'django.contrib.sessions.backends.db'
TIME_FORMAT
'P'
FORCE_SCRIPT_NAME
None
SECURE_SSL_REDIRECT
False
ALLOWED_INCLUDE_ROOTS
[]
SHORT_DATETIME_FORMAT
'm/d/Y P'
DEFAULT_CONTENT_TYPE
'text/html'
NUMBER_GROUPING
0
DEFAULT_EXCEPTION_REPORTER_FILTER
'django.views.debug.SafeExceptionReporterFilter'
SESSION_EXPIRE_AT_BROWSER_CLOSE
False
LANGUAGE_CODE
'en-us'
TIME_INPUT_FORMATS
['%H:%M:%S', '%H:%M:%S.%f', '%H:%M']
SESSION_COOKIE_NAME
'sessionid'
ALLOWED_HOSTS
['xx.yy.zz.tt', 'myweb.net', 'myweb.dk']
SESSION_COOKIE_DOMAIN
None
EMAIL_SSL_CERTFILE
None
DEFAULT_FROM_EMAIL
'webmaster@localhost'
EMAIL_PORT
25
DATE_FORMAT
'N j, Y'
ABSOLUTE_URL_OVERRIDES
{}
USE_ETAGS
False
CSRF_FAILURE_VIEW
'django.views.csrf.csrf_failure'
EMAIL_SSL_KEYFILE
'********************'
CSRF_COOKIE_HTTPONLY
False
SESSION_CACHE_ALIAS
'default'
LANGUAGES
[('af', 'Afrikaans'),
('ar', 'Arabic'),
('ast', 'Asturian'),
('az', 'Azerbaijani'),
('bg', 'Bulgarian'),
('be', 'Belarusian'),
('bn', 'Bengali'),
('br', 'Breton'),
('bs', 'Bosnian'),
('ca', 'Catalan'),
('cs', 'Czech'),
('cy', 'Welsh'),
('da', 'Danish'),
('de', 'German'),
('el', 'Greek'),
('en', 'English'),
('en-au', 'Australian English'),
('en-gb', 'British English'),
('eo', 'Esperanto'),
('es', 'Spanish'),
('es-ar', 'Argentinian Spanish'),
('es-co', 'Colombian Spanish'),
('es-mx', 'Mexican Spanish'),
('es-ni', 'Nicaraguan Spanish'),
('es-ve', 'Venezuelan Spanish'),
('et', 'Estonian'),
('eu', 'Basque'),
('fa', 'Persian'),
('fi', 'Finnish'),
('fr', 'French'),
('fy', 'Frisian'),
('ga', 'Irish'),
('gd', 'Scottish Gaelic'),
('gl', 'Galician'),
('he', 'Hebrew'),
('hi', 'Hindi'),
('hr', 'Croatian'),
('hu', 'Hungarian'),
('ia', 'Interlingua'),
('id', 'Indonesian'),
('io', 'Ido'),
('is', 'Icelandic'),
('it', 'Italian'),
('ja', 'Japanese'),
('ka', 'Georgian'),
('kk', 'Kazakh'),
('km', 'Khmer'),
('kn', 'Kannada'),
('ko', 'Korean'),
('lb', 'Luxembourgish'),
('lt', 'Lithuanian'),
('lv', 'Latvian'),
('mk', 'Macedonian'),
('ml', 'Malayalam'),
('mn', 'Mongolian'),
('mr', 'Marathi'),
('my', 'Burmese'),
('nb', 'Norwegian Bokmal'),
('ne', 'Nepali'),
('nl', 'Dutch'),
('nn', 'Norwegian Nynorsk'),
('os', 'Ossetic'),
('pa', 'Punjabi'),
('pl', 'Polish'),
('pt', 'Portuguese'),
('pt-br', 'Brazilian Portuguese'),
('ro', 'Romanian'),
('ru', 'Russian'),
('sk', 'Slovak'),
('sl', 'Slovenian'),
('sq', 'Albanian'),
('sr', 'Serbian'),
('sr-latn', 'Serbian Latin'),
('sv', 'Swedish'),
('sw', 'Swahili'),
('ta', 'Tamil'),
('te', 'Telugu'),
('th', 'Thai'),
('tr', 'Turkish'),
('tt', 'Tatar'),
('udm', 'Udmurt'),
('uk', 'Ukrainian'),
('ur', 'Urdu'),
('vi', 'Vietnamese'),
('zh-hans', 'Simplified Chinese'),
('zh-hant', 'Traditional Chinese')]
X_FRAME_OPTIONS
'SAMEORIGIN'
AUTH_USER_MODEL
'auth.User'
SILENCED_SYSTEM_CHECKS
[]
LOGOUT_URL
'/accounts/logout/'
STATICFILES_FINDERS
['django.contrib.staticfiles.finders.FileSystemFinder',
'django.contrib.staticfiles.finders.AppDirectoriesFinder']
TEMPLATES
[{'APP_DIRS': True,
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': ['/var/www/vhosts/myweb.dk/httpdocs/TeamTournament/templates'],
'OPTIONS': {'context_processors': ['django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
'django.template.context_processors.request']}}]
SERVER_EMAIL
'root@localhost'
SECURE_BROWSER_XSS_FILTER
False
TEMPLATE_CONTEXT_PROCESSORS
['django.contrib.auth.context_processors.auth',
'django.template.context_processors.debug',
'django.template.context_processors.i18n',
'django.template.context_processors.media',
'django.template.context_processors.static',
'django.template.context_processors.tz',
'django.contrib.messages.context_processors.messages']
DEBUG_APPS
False
USE_X_FORWARDED_PORT
False
ADMINS
[]
SIGNING_BACKEND
'django.core.signing.TimestampSigner'
CSRF_COOKIE_SECURE
False
EMAIL_USE_SSL
False
CACHES
{'default': {'BACKEND': 'django.core.cache.backends.locmem.LocMemCache'}}
LOCALE_PATHS
[]
TEMPLATE_STRING_IF_INVALID
''
MESSAGE_STORAGE
'django.contrib.messages.storage.fallback.FallbackStorage'
PRODUCTION
False
FIXTURE_DIRS
[]
CSRF_COOKIE_PATH
'/'
MIDDLEWARE_CLASSES
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
MANAGERS
[]
CSRF_TRUSTED_ORIGINS
[]
CACHE_MIDDLEWARE_SECONDS
600
APPEND_SLASH
True
TEST_NON_SERIALIZED_APPS
[]
SECURE_HSTS_INCLUDE_SUBDOMAINS
False
MIGRATION_MODULES
{}
LANGUAGE_COOKIE_AGE
None
TEMPLATE_LOADERS
['django.template.loaders.filesystem.Loader',
'django.template.loaders.app_directories.Loader']
STATIC_URL
'/static/'
SESSION_COOKIE_AGE
1209600
SETTINGS_MODULE
'TeamTournament.settings'
DECIMAL_SEPARATOR
'.'
YEAR_MONTH_FORMAT
'F Y'
EMAIL_TIMEOUT
None
SESSION_SAVE_EVERY_REQUEST
False
BASE_DIR
'/var/www/vhosts/myweb.dk/httpdocs/TeamTournament'
SECURE_CONTENT_TYPE_NOSNIFF
False
FILE_UPLOAD_TEMP_DIR
None
CACHE_MIDDLEWARE_KEY_PREFIX
'********************'
DEBUG
True
SESSION_COOKIE_HTTPONLY
True
CSRF_HEADER_NAME
'HTTP_X_CSRFTOKEN'
USE_L10N
True
STATICFILES_DIRS
[]
SESSION_SERIALIZER
'django.contrib.sessions.serializers.JSONSerializer'
USE_THOUSAND_SEPARATOR
False
EMAIL_BACKEND
'django.core.mail.backends.smtp.EmailBackend'
USE_X_FORWARDED_HOST
False
STATIC_ROOT
'/var/www/vhosts/myweb.dk/httpdocs/static/'
SECRET_KEY
'********************'
PASSWORD_RESET_TIMEOUT_DAYS
'********************'
MEDIA_ROOT
''
TIME_ZONE
'CET'
DATABASES
{'default': {'ATOMIC_REQUESTS': False,
'AUTOCOMMIT': True,
'CONN_MAX_AGE': 0,
'ENGINE': 'django.db.backends.postgresql',
'HOST': '127.0.0.1',
'NAME': 'user',
'OPTIONS': {},
'PASSWORD': '********************',
'PORT': '5432',
'TEST': {'CHARSET': None,
'COLLATION': None,
'MIRROR': None,
'NAME': None},
'TIME_ZONE': None,
'USER': 'user'}}
DEFAULT_INDEX_TABLESPACE
''
EMAIL_USE_TLS
False
LOGIN_URL
'/accounts/login/'
SHORT_DATE_FORMAT
'm/d/Y'
CSRF_COOKIE_NAME
'csrftoken'
LANGUAGE_COOKIE_DOMAIN
None
USE_I18N
True
SESSION_COOKIE_SECURE
False
CACHE_MIDDLEWARE_ALIAS
'default'
DEFAULT_CHARSET
'utf-8'
TEMPLATE_DEBUG
False
ROOT_URLCONF
'TeamTournament.urls'
SECURE_PROXY_SSL_HEADER
None
EMAIL_HOST_PASSWORD
'********************'
FILE_UPLOAD_PERMISSIONS
None
CSRF_COOKIE_AGE
31449600
DEBUG_PROPAGATE_EXCEPTIONS
False
WSGI_APPLICATION
'TeamTournament.wsgi.application'
PASSWORD_HASHERS
'********************'
SECURE_REDIRECT_EXEMPT
[]
LANGUAGES_BIDI
['he', 'ar', 'fa', 'ur']
CSRF_COOKIE_DOMAIN
None
DEFAULT_FILE_STORAGE
'django.core.files.storage.FileSystemStorage'
POSTGRES
True
PREPEND_WWW
False
EMAIL_SUBJECT_PREFIX
'[Django] '
LOGGING
{'disable_existing_loggers': False,
'filters': {'require_debug_false': {'()': 'django.utils.log.RequireDebugFalse'}},
'handlers': {'logfile': {'class': 'logging.handlers.WatchedFileHandler',
'filename': '/var/log/django/error.log'},
'mail_admins': {'class': 'django.utils.log.AdminEmailHandler',
'filters': ['require_debug_false'],
'level': 'ERROR'}},
'loggers': {'django': {'handlers': ['logfile'],
'level': 'ERROR',
'propagate': False},
'django.request': {'handlers': ['mail_admins'],
'level': 'ERROR',
'propagate': True}},
'version': 1}
SESSION_FILE_PATH
None
TEST_RUNNER
'django.test.runner.DiscoverRunner'
INTERNAL_IPS
[]
DATABASE_ROUTERS
[]
FILE_CHARSET
'utf-8'
LANGUAGE_COOKIE_NAME
'django_language'
INSTALLED_APPS
['polls.apps.PollsConfig',
'teamTournamentApp.apps.TeamtournamentappConfig',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles']
LANGUAGE_COOKIE_PATH
'/'
IGNORABLE_404_URLS
[]
MEDIA_URL
''
DISALLOWED_USER_AGENTS
[]
LOG_PATH
'/var/log/django/error.log'
LOGGING_CONFIG
'logging.config.dictConfig'
THOUSAND_SEPARATOR
','
MONTH_DAY_FORMAT
'F j'
USE_TZ
True
EMAIL_HOST_USER
''
AUTH_PASSWORD_VALIDATORS
'********************'
SECURE_HSTS_SECONDS
0
AUTHENTICATION_BACKENDS
['django.contrib.auth.backends.ModelBackend']
答案 0 :(得分：26)
对于 18/06/2021，这是一个已知问题，它来自 psycopg-2/psycopg2-binary 软件包。幸运的是，他们的 GitHub 页面上已经有一个 open issue，所以希望它很快得到修复。
作为临时修复，您可以将 Canvas x:Name="ProcessPanel" Visibility="Hidden" 中的版本固定到 requirements.txt 或 psycopg2-binary>=2.8,<2.9，具体取决于您使用的软件包。
感谢@vinkomlacic 在评论中提及这一点。
答案 1 :(得分：4)
我遇到了同样的问题，也遇到了通常使用UTC + 2运行的服务器（在我的情况下，是欧洲/奥斯陆）。
事实证明，我的服务器（Centos 7）上的系统zoneinfo文件已损坏，这在pg_timezone_names中显而易见。
postgres=# select * from pg_timezone_names where name like 'UTC';
name | abbrev | utc_offset | is_dst
------+--------+------------+--------
UTC | CEST | 02:00:00 | t
(1 row)
运行yum update tzdata以更新我的服务器的时区文件，然后重新启动PostgreSQL服务器后，问题似乎已得到解决。
postgres=# select * from pg_timezone_names where name like 'UTC';
name | abbrev | utc_offset | is_dst
------+--------+------------+--------
UTC | UTC | 00:00:00 | f
(1 row)
我的猜测我之前可能已经运行cat /usr/share/zoneinfo/Europe/Oslo > /etc/localtime而没有先删除/etc/localtime来更改系统上的时区，有效地使用zoneinfo for Europe / Oslo覆盖UTC的zoneinfo。
答案 2 :(得分：3)
如果您使用的是 psycopg2 2.9，请降级到 psycopg2==2.8.6 或 pip3 install psycopg2-binary==2.8.6。 此问题是由最近对 psycopg2 2.9 版的更新引起的。
答案 3 :(得分：1)
这里有一个简单的解决方法，我发现它可以为我解决这个问题。 即设置：
USE_TZ = False
这有助于解决问题。 默认情况下，它设置为 True，因此当我在 Heroku 上使用 PostgreSql 时会出现错误。也许 Django 引擎和数据库之间发生了一些同步。
答案 4 :(得分：0)
非常感谢KFH的回答，它对我有很大帮助。如果您使用的是Ubuntu，请执行以下操作修复该问题：
sudo apt install tzdata --reinstall
问题对我来说是一样的，因为我以前运行过sudo cp /usr/share/zoneinfo/America/Montreal /etc/localtime，它弄乱了我的postgres数据库。重新安装tzdata并重新启动postgres对我来说解决了这个问题。
答案 5 :(得分：0)
我在 windows 上通过安装 psycopg2==2.8.6 和 psycopg2-binary==2.8.6 并卸载其中任何一个的最新版本解决了这个错误。