如何在现有的Flask应用程序中使用Flask-APScheduler

Question

我试图通过以下示例代码熟悉Flask-APScheduler插件:https://github.com/viniciuschiele/flask-apscheduler/blob/master/examples/jobs.py#L1

我的项目有以下结构:

backend
    run.py
    application
        __init__.py
        utilities
            __init__.py
            views
            models

哪里,

backend>run.py 是:

from application import app
app.run(debug=True)
from application import scheduler
scheduler.start()

backend>application>__init__.py 是:

from flask import Flask
app = Flask(__name__)
from application.utilities.views import Config
from flask_apscheduler import APScheduler
app.config.from_object(Config())
scheduler = APScheduler()
scheduler.init_app(app)

backend>application>utilities>__init__.py 是空的

backend>application>utilities>models.py 是空的

backend>application>utilities>views.py 是:

class Config(object):
    JOBS = [
        {
            'id': 'job1',
            'func': 'application:utilities:views:job1',
            'args': (1, 2),
            'trigger': {
                'type': 'cron',
                'second': 10
            }
        }
    ]

def job1(a, b):
    print(str(a) + ' ' + str(b))

但是,我收到以下错误:

(env)$ python run.py local
Traceback (most recent call last):
  File "run.py", line 1, in <module>
    from application import app
  File "HOME/backend/application/__init__.py", line 106, in <module>
    scheduler.init_app(app)
  File "/home/xxxxxx/.anaconda/envs/env/lib/python2.7/site-packages/flask_apscheduler/scheduler.py", line 73, in init_app
    self.__load_jobs(app)
  File "/home/xxxxxx/.anaconda/envs/env/lib/python2.7/site-packages/flask_apscheduler/scheduler.py", line 136, in __load_jobs
    self.__load_job(job, app)
  File "/home/xxxxxx/.anaconda/envs/env/lib/python2.7/site-packages/flask_apscheduler/scheduler.py", line 159, in __load_job
    func = ref_to_obj(func)
  File "/home/xxxxxx/.anaconda/envs/env/lib/python2.7/site-packages/apscheduler/util.py", line 264, in ref_to_obj
    raise LookupError('Error resolving reference %s: error looking up object' % ref)
LookupError: Error resolving reference application:utilities:views:job1: error looking up object

我的结构看起来好吗？在正确的位置放置正确的代码？我应该改变什么来使它工作？

Answer 1

您的引用应该只有一个冒号(":").冒号将所需的导入与必须查找的变量分开.所以:

'func': 'application.utilities.views:job1'