按照芹菜教程，我得到这个错误 No module named 'src'

Posted 2023-02-24

【中文标题】按照芹菜教程，我得到这个错误 No module named \'src\'

【英文标题】：following the celery tutorial and I get this error No module named 'src'按照芹菜教程，我得到这个错误 No module named 'src'

【发布时间】：2017-01-21 17:10:40

【问题描述】：

我正在关注 celery 教程，但收到此错误 No module named 'src'。我不明白这是什么问题。

这是我的目录结构

venv/
  src/
   __init__.py
   celery.py
   manage.py
   tasks.py

我的 celery.py

    from __future__ import absolute_import
    from .gettingstarted.settings.local import BROKER_URL
    from celery import Celery

    app = Celery('src',
                 broker=BROKER_URL,
                 backend=BROKER_URL,
                 include=['src.tasks'])

    # Optional configuration, see the application user guide.
    app.conf.update(
        CELERY_TASK_RESULT_EXPIRES=3600,
    )

    if __name__ == '__main__':
        app.start()

我的 tasks.py 文件

    from __future__ import absolute_import

    from proj.celery import app


    @app.task
    def add(x, y):
        return x + y


    @app.task
    def mul(x, y):
        return x * y


    @app.task
    def xsum(numbers):
        return sum(numbers)

我也试过

from __future__ import absolute_import
import sys
sys.path.insert(0, "/project/src/")
from proj.celery import app

那也没用。

当我进入 src 目录并运行 python shell 时出现以下错误

No module named 'src'

我的故障是什么？

编辑

我的回溯

(practice) apples-MBP:src ray$ celery worker -A tasks -l info
Traceback (most recent call last):
  File "/Users/ray/Desktop/myheroku/practice/bin/celery", line 11, in <module>
    sys.exit(main())
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/celery/__main__.py", line 30, in main
    main()
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/celery/bin/celery.py", line 81, in main
    cmd.execute_from_commandline(argv)
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/celery/bin/celery.py", line 793, in execute_from_commandline
    super(CeleryCommand, self).execute_from_commandline(argv)))
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/celery/bin/base.py", line 309, in execute_from_commandline
    argv = self.setup_app_from_commandline(argv)
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/celery/bin/base.py", line 469, in setup_app_from_commandline
    self.app = self.find_app(app)
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/celery/bin/base.py", line 489, in find_app
    return find_app(app, symbol_by_name=self.symbol_by_name)
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/celery/app/utils.py", line 235, in find_app
    sym = symbol_by_name(app, imp=imp)
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/celery/bin/base.py", line 492, in symbol_by_name
    return symbol_by_name(name, imp=imp)
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/kombu/utils/__init__.py", line 96, in symbol_by_name
    module = imp(module_name, package=package, **kwargs)
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/celery/utils/imports.py", line 101, in import_from_cwd
    return imp(module, package=package)
  File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 986, in _gcd_import
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 662, in exec_module
  File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
  File "/Users/ray/Desktop/myheroku/practice/src/tasks.py", line 4, in <module>
    from src.celery import app
ImportError: No module named 'src'

【问题讨论】：

请将完整的错误回溯添加到您的问题中。

@KlausD。完成看上面

您的回溯与您的代码不匹配。

【参考方案1】：

您的 PYTHONPATH 必须在其中包含 src 目录。如果您执行cd src，它会将您的模块视为celery 而不是src.celery。

要修复它，您可以...

A.向上运行你的代码一个目录

cd .. && celery worker -A src.tasks -l info

B.将父目录添加到您的 PYTHONPATH

PYTHONPATH=.. celery worker -A src.tasks -l info

【讨论】：

如果我这样做，它会说没有名为任务的模块

好点 - -A 命令是它应该加载的 python 模块，在本例中是 tasks.py。您可以按照我上面的建议使用src.tasks 修改它，或者您可以将导入语句修改为from celery import app。这取决于代码中的 import 语句使用 from src import... 构造的次数。