Ros*_*day 5 python django celery visual-studio-code vscode-debugger
经过几天令人沮丧的运行之后,我需要考虑在 VSCode 中调试 celery 工作进程。这是遵循 Celery 文档中创建消息处理程序的建议流程,而不是从同一应用程序发布/订阅。
celery.py 文件:
from __future__ import absolute_import, unicode_literals
import os
import json
from celery import Celery, bootsteps
from kombu import Consumer, Exchange, Queue
dataFeedQueue = Queue('statistical_forecasting', Exchange('forecasting_event_bus', 'direct', durable=False), 'DataFeedUpdatedIntegrationEvent')
# set the default Django settings module for the 'celery' program.
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'config.settings.local')
app = Celery('statistical_forecasting')
app.config_from_object('django.conf:settings', namespace='CELERY')
# Not required yet as handler is within this file
#app.autodiscover_tasks()
class DataFeedUpdatedHandler(bootsteps.ConsumerStep):
def get_consumers(self, channel):
return [Consumer(channel, queues=[dataFeedQueue], callbacks=[self.handle_message], accept=['json'])]
def handle_message(self, body, message):
event = json.loads(body)
# removed for brevity, but at present echo's message content with print
message.ack()
app.steps['consumer'].add(DataFeedUpdatedHandler)
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我的简短项目结构是:
workspace -
vscode -
- launch.json
config -
__init__.py
settings -
local.py
venv -
celery.exe
statistical_forecasting -
__init__.py
celery.py
farms -
__init__.py
handlers.py # ultimately handler code should live here...
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我正在从带有 venv enable 的终端运行,celery -A statistical_forecasting worker -l info它似乎成功地设置和运行了基本消息处理程序。
到目前为止我已经尝试使用 VSCode 来设置以下配置launch.json
{
"version": "0.2.0",
"configurations": [
{
"name": "Python: Celery",
"type": "python",
"request": "launch",
"module": "celery",
"console": "integratedTerminal",
//"program": "${workspaceFolder}\\env\\Scripts\\celery.exe",
"args": [
"worker",
"-A statistical_forecasting",
"-l info",
]
},
]
}
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不幸的是,这只会导致以下消息:
Error:
Unable to load celery application.
The module statistical_forecasting was not found.
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从逻辑上讲,我可以推断调试应该celery从工作空间目录运行,并且它应该看到statistical_forecasting带有__init__.py技术使其成为模块的目录?
我尝试过其他各种想法,例如强制program设置lauch.json虚拟环境等,但都返回相同的基本错误消息。
istic_forecasting 中的“ init.py ”包含标准 Django 设置,我不相信它是必需的,因为 celery 任务是在 Django 外部运行的,而且我不打算从 Django 应用程序发布/接收。
Ros*_*day 10
为了其他尝试这样做的人的利益,这是我将 celery 作为模块进行测试的最小配置
{
"name": "Python: Celery",
"module": "celery",
"console": "integratedTerminal",
"args": [
"worker",
"--app=statistical_forecasting",
"--loglevel=INFO",
],
},
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关键要点是参数的格式如何。原始版本使用的是您通常在从命令行运行时看到的缩短版本,例如在教程中。
通常,您会发现celery -A statistical_forecasting worker -l info要使调试器正常工作,您需要更完整的版本celery --app=statistical_forecasting worker --loglevel=INFO。
反映下面的评论它也可以作为:
{
"name": "Python: Celery",
"module": "celery",
"console": "integratedTerminal",
"args": [
"worker",
"-A",
"statistical_forecasting",
"-l",
"info",
],
},
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出于兴趣,较长的版本如下,但这主要只是重复 VsCode 默认设置的内容:
{
"name": "Python: Celery",
"type": "python",
"request": "launch",
"module": "celery",
"console": "integratedTerminal",
"cwd": "${workspaceFolder}",
"program": "${workspaceFolder}\\env\\Scripts\\celery.exe",
"pythonPath": "${config:python.pythonPath}",
"args": [
"worker",
"--app=statistical_forecasting",
"--loglevel=INFO",
],
"env":{
"DJANGO_SETTINGS_MODULE": "config.settings.local",
}
},
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