我正在开发一个 celery 独立应用程序，它使用 Django ORM 访问我的数据库并在我的数据中执行操作。我遵循了这个问题的答案:Use Django ORM as standalone
但是当我运行我的 celery worker 时，它给了我以下错误:
django.core.exceptions.ImproperlyConfigured: Requested setting LOGGING_CONFIG, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.
这是我的完整应用程序代码和目录结构:
standAlone/
----init.py
----settings.py
DATABASE_ENGINE = "django.db.backends.mysql"
DATABASE_NAME = "my_database_name"
DATABASE_USER = "my_database_username"
DATABASE_PASSWORD = "my_database_password"
DATABASE_HOST = "my_host"
DATABASE_PORT = "3306",
INSTALLED_APPS = ("myApp")
----manage.py
#!/usr/bin/env python
import os
import sys
if __name__ == "__main__":
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myApp.settings")
try:
from django.core.management import execute_from_command_line
except ImportError:
# The above import may fail for some other reason. Ensure that the
# issue is really that Django is missing to avoid masking other
# exceptions on Python 2.
try:
import django
except ImportError:
raise ImportError(
"Couldn't import Django. Are you sure it's installed and "
"available on your PYTHONPATH environment variable? Did you "
"forget to activate a virtual environment?"
)
raise
execute_from_command_line(sys.argv)
----tasks.py
import django
django.setup()
from celery import Celery
from django.conf import settings
settings.configure(
DATABASE_ENGINE = "django.db.backends.mysql",
DATABASE_NAME = "myDatabase",
DATABASE_USER = "myUsername",
DATABASE_PASSWORD = "myPassword",
DATABASE_HOST = "my host",
DATABASE_PORT = "3306",
INSTALLED_APPS = ("myApp,")
)
from django.db import models
from myApp.models import *
app = Celery('tasks', broker='redis://ip_address')
@app.task(name="task1")
def task1():
#my task code
@app.task(name="task2")
def task2():
#my task code
----/myApp
--------/init.py
--------/models.py
from django.db import models
from django.utils.encoding import python_2_unicode_compatible
from django.utils import timezone
# my models go here
现在，当我运行以下命令时:
celery -A tasks worker &
我收到这个错误:
django.core.exceptions.ImproperlyConfigured: Requested setting LOGGING_CONFIG, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.
谁能告诉我哪里出错了？
更新:
这是完整的回溯:
Traceback (most recent call last):
File "/usr/local/bin/celery", line 11, in <module>
sys.exit(main())
File "/usr/local/lib/python2.7/dist-packages/celery/__main__.py", line 30, in main
main()
File "/usr/local/lib/python2.7/dist-packages/celery/bin/celery.py", line 81, in main
cmd.execute_from_commandline(argv)
File "/usr/local/lib/python2.7/dist-packages/celery/bin/celery.py", line 793, in execute_from_commandline
super(CeleryCommand, self).execute_from_commandline(argv)))
File "/usr/local/lib/python2.7/dist-packages/celery/bin/base.py", line 309, in execute_from_commandline
argv = self.setup_app_from_commandline(argv)
File "/usr/local/lib/python2.7/dist-packages/celery/bin/base.py", line 469, in setup_app_from_commandline
self.app = self.find_app(app)
File "/usr/local/lib/python2.7/dist-packages/celery/bin/base.py", line 489, in find_app
return find_app(app, symbol_by_name=self.symbol_by_name)
File "/usr/local/lib/python2.7/dist-packages/celery/app/utils.py", line 235, in find_app
sym = symbol_by_name(app, imp=imp)
File "/usr/local/lib/python2.7/dist-packages/celery/bin/base.py", line 492, in symbol_by_name
return symbol_by_name(name, imp=imp)
File "/usr/local/lib/python2.7/dist-packages/kombu/utils/__init__.py", line 96, in symbol_by_name
module = imp(module_name, package=package, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/celery/utils/imports.py", line 101, in import_from_cwd
return imp(module, package=package)
File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/root/standAlone/tasks.py", line 2, in <module>
django.setup()
File "/usr/local/lib/python2.7/dist-packages/django/__init__.py", line 22, in setup
configure_logging(settings.LOGGING_CONFIG, settings.LOGGING)
File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 53, in __getattr__
self._setup(name)
File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 39, in _setup
% (desc, ENVIRONMENT_VARIABLE))
django.core.exceptions.ImproperlyConfigured: Requested setting LOGGING_CONFIG, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.
更新 2:
现在我已经应用了所提供的答案，但出现错误提示
no module named m
具有以下追溯:
Traceback (most recent call last):
File "/usr/local/bin/celery", line 11, in <module>
sys.exit(main())
File "/usr/local/lib/python2.7/dist-packages/celery/__main__.py", line 30, in main
main()
File "/usr/local/lib/python2.7/dist-packages/celery/bin/celery.py", line 81, in main
cmd.execute_from_commandline(argv)
File "/usr/local/lib/python2.7/dist-packages/celery/bin/celery.py", line 793, in execute_from_commandline
super(CeleryCommand, self).execute_from_commandline(argv)))
File "/usr/local/lib/python2.7/dist-packages/celery/bin/base.py", line 309, in execute_from_commandline
argv = self.setup_app_from_commandline(argv)
File "/usr/local/lib/python2.7/dist-packages/celery/bin/base.py", line 469, in setup_app_from_commandline
self.app = self.find_app(app)
File "/usr/local/lib/python2.7/dist-packages/celery/bin/base.py", line 489, in find_app
return find_app(app, symbol_by_name=self.symbol_by_name)
File "/usr/local/lib/python2.7/dist-packages/celery/app/utils.py", line 235, in find_app
sym = symbol_by_name(app, imp=imp)
File "/usr/local/lib/python2.7/dist-packages/celery/bin/base.py", line 492, in symbol_by_name
return symbol_by_name(name, imp=imp)
File "/usr/local/lib/python2.7/dist-packages/kombu/utils/__init__.py", line 96, in symbol_by_name
module = imp(module_name, package=package, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/celery/utils/imports.py", line 101, in import_from_cwd
return imp(module, package=package)
File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/root/standAlone/tasks.py", line 13, in <module>
django.setup()
File "/usr/local/lib/python2.7/dist-packages/django/__init__.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "/usr/local/lib/python2.7/dist-packages/django/apps/registry.py", line 85, in populate
app_config = AppConfig.create(entry)
File "/usr/local/lib/python2.7/dist-packages/django/apps/config.py", line 90, in create
module = import_module(entry)
File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
ImportError: No module named m
更新 3
原来我需要改变
INSTALLED_APPS = ("myApp")
到
INSTALLED_APPS = ("myApp",)
然后一切正常!
请您参考如下方法:
您需要在调用 django.setup() 之前配置您的设置。只需切换语句即可解决问题:
# tasks.py
import django
from celery import Celery
from django.conf import settings
settings.configure(
DATABASE_ENGINE = "django.db.backends.mysql",
DATABASE_NAME = "myDatabase",
DATABASE_USER = "myUsername",
DATABASE_PASSWORD = "myPassword",
DATABASE_HOST = "my host",
DATABASE_PORT = "3306",
INSTALLED_APPS = ("myApp",) # Move the comma out of the quotes
)
django.setup()
