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Celery 5.0.0 ModuleNotFoundError: No module named 'celery.task' #6406

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Celery 5.0.0 ModuleNotFoundError: No module named 'celery.task'#6406
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thedrow
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Category: DocumentationIssue Type: Bug ReportVersion: 5.0
Milestone
5.0.1

Description

@cryptobench
cryptobench
opened on Oct 11, 2020

Checklist

  • I have verified that the issue exists against the master branch of Celery.
  • This has already been asked to the discussion group first.
  • I have read the relevant section in the
    contribution guide
    on reporting bugs.
  • I have checked the issues list
    for similar or identical bug reports.
  • I have checked the pull requests list
    for existing proposed fixes.
  • I have checked the commit log
    to find out if the bug was already fixed in the master branch.
  • I have included all related issues and possible duplicate issues
    in this issue (If there are none, check this box anyway).

Mandatory Debugging Information

  • I have included the output of celery -A proj report in the issue.
    (if you are not able to do this, then at least specify the Celery
    version affected).
  • I have verified that the issue exists against the master branch of Celery.
  • I have included the contents of pip freeze in the issue.
  • I have included all the versions of all the external dependencies required
    to reproduce this bug.

Optional Debugging Information

  • I have tried reproducing the issue on more than one Python version
    and/or implementation.
  • I have tried reproducing the issue on more than one message broker and/or
    result backend.
  • I have tried reproducing the issue on more than one version of the message
    broker and/or result backend.
  • I have tried reproducing the issue on more than one operating system.
  • I have tried reproducing the issue on more than one workers pool.
  • I have tried reproducing the issue with autoscaling, retries,
    ETA/Countdown & rate limits disabled.
  • I have tried reproducing the issue after downgrading
    and/or upgrading Celery and its dependencies.

Related Issues and Possible Duplicates

Related Issues

https://groups.google.com/g/celery-users/c/VIyUHo0UHCM

Possible Duplicates

  • None

Environment & Settings

Celery version: 5.0.0

celery report Output:

Steps to Reproduce

Required Dependencies

  • Minimal Python Version: 3.7
  • Minimal Celery Version: 5.0.0
  • Minimal Kombu Version: 5.0.2
  • Minimal Broker Version: Redis 3.5.3
  • Minimal Result Backend Version: N/A or Unknown
  • Minimal OS and/or Kernel Version: Ubuntu 20.04
  • Minimal Broker Client Version: N/A or Unknown
  • Minimal Result Backend Client Version: N/A or Unknown

Python Packages

pip freeze Output:

Other Dependencies

Details

N/A

Minimally Reproducible Test Case

from celery.decorators import periodic_task

@periodic_task(run_every=crontab(minute='*/10'))
def my-task():
    doSomething()
Details 







Expected Behavior


Import from celery.decorators import periodic_task and use the periodic_task decorator on a task


Actual Behavior


Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/celery/utils/dispatch/signal.py", line 276, in send
    response = receiver(signal=self, sender=sender, **named)
  File "/usr/local/lib/python3.7/site-packages/vine/promises.py", line 160, in __call__
    return self.throw()
  File "/usr/local/lib/python3.7/site-packages/vine/promises.py", line 157, in __call__
    retval = fun(*final_args, **final_kwargs)
  File "/usr/local/lib/python3.7/site-packages/celery/app/base.py", line 640, in _autodiscover_tasks
    return self._autodiscover_tasks_from_fixups(related_name)
  File "/usr/local/lib/python3.7/site-packages/celery/app/base.py", line 653, in _autodiscover_tasks_from_fixups
    ], related_name=related_name)
  File "/usr/local/lib/python3.7/site-packages/celery/app/base.py", line 645, in _autodiscover_tasks_from_names
    packages() if callable(packages) else packages, related_name,
  File "/usr/local/lib/python3.7/site-packages/celery/loaders/base.py", line 220, in autodiscover_tasks
    related_name) if mod)
  File "/usr/local/lib/python3.7/site-packages/celery/loaders/base.py", line 245, in autodiscover_tasks
    return [find_related_module(pkg, related_name) for pkg in packages]
  File "/usr/local/lib/python3.7/site-packages/celery/loaders/base.py", line 245, in <listcomp>
    return [find_related_module(pkg, related_name) for pkg in packages]
  File "/usr/local/lib/python3.7/site-packages/celery/loaders/base.py", line 270, in find_related_module
    raise e
  File "/usr/local/lib/python3.7/site-packages/celery/loaders/base.py", line 266, in find_related_module
    return importlib.import_module(module_name)
  File "/usr/local/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/src/scraper/tasks.py", line 25, in <module>
    @periodic_task(run_every=crontab(minute='*/10'))
  File "/usr/local/lib/python3.7/site-packages/celery/local.py", line 403, in _compat_periodic_task_decorator
    from celery.task import periodic_task
ModuleNotFoundError: No module named 'celery.task'
Traceback (most recent call last):
  File "/usr/local/bin/celery", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/site-packages/celery/__main__.py", line 15, in main
    sys.exit(_main())
  File "/usr/local/lib/python3.7/site-packages/celery/bin/celery.py", line 150, in main
    return celery(auto_envvar_prefix="CELERY")
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/click/decorators.py", line 21, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/celery/bin/worker.py", line 329, in worker
    **kwargs)
  File "/usr/local/lib/python3.7/site-packages/celery/worker/worker.py", line 94, in __init__
    self.app.loader.init_worker()
  File "/usr/local/lib/python3.7/site-packages/celery/loaders/base.py", line 111, in init_worker
    self.import_default_modules()
  File "/usr/local/lib/python3.7/site-packages/celery/loaders/base.py", line 105, in import_default_modules
    raise response
  File "/usr/local/lib/python3.7/site-packages/celery/utils/dispatch/signal.py", line 276, in send
    response = receiver(signal=self, sender=sender, **named)
  File "/usr/local/lib/python3.7/site-packages/celery/fixups/django.py", line 82, in on_import_modules
    self.worker_fixup.validate_models()
  File "/usr/local/lib/python3.7/site-packages/celery/fixups/django.py", line 121, in validate_models
    run_checks()
  File "/usr/local/lib/python3.7/site-packages/django/core/checks/registry.py", line 70, in run_checks
    new_errors = check(app_configs=app_configs, databases=databases)
  File "/usr/local/lib/python3.7/site-packages/django/core/checks/urls.py", line 13, in check_url_config
    return check_resolver(resolver)
  File "/usr/local/lib/python3.7/site-packages/django/core/checks/urls.py", line 23, in check_resolver
    return check_method()
  File "/usr/local/lib/python3.7/site-packages/django/urls/resolvers.py", line 408, in check
    for pattern in self.url_patterns:
  File "/usr/local/lib/python3.7/site-packages/django/utils/functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.7/site-packages/django/urls/resolvers.py", line 589, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "/usr/local/lib/python3.7/site-packages/django/utils/functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.7/site-packages/django/urls/resolvers.py", line 582, in urlconf_module
    return import_module(self.urlconf_name)
  File "/usr/local/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/src/mydjango/urls.py", line 22, in <module>
    path('api/', include('scraper.urls', namespace="scraper")),
  File "/usr/local/lib/python3.7/site-packages/django/urls/conf.py", line 34, in include
    urlconf_module = import_module(urlconf_module)
  File "/usr/local/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/src/scraper/urls.py", line 3, in <module>
    from . import views
  File "/src/scraper/views.py", line 2, in <module>
    from .tasks import save_fuzzed_domains
  File "/src/scraper/tasks.py", line 25, in <module>
    @periodic_task(run_every=crontab(minute='*/10'))
  File "/usr/local/lib/python3.7/site-packages/celery/local.py", line 403, in _compat_periodic_task_decorator
    from celery.task import periodic_task
ModuleNotFoundError: No module named 'celery.task'

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