'logger_name' 使用 Flask 在我的 python 应用中启用 cors 时丢失

Question

我正在尝试让 CORS 正常工作。一种解决方法有效，但不适用于所有 api。所以我希望有正常的工作方式。现在我已经在这里呆了一段时间了。我尝试像这样初始化 CORS：

flask_app = Flask(__name__)
CORS(flask_app)

这给了我以下错误：

return logging.getLogger("%s.cors" % app.logger_name) AttributeError: 'Flask' object has no attribute 'logger_name'

完整的错误是：

2021-12-18 16:30:57 default[20211218t172924]  Traceback (most recent call last):
File "/layers/google.python.pip/pip/lib/python3.8/site-packages/gunicorn/arbiter.py", line 589, in spawn_worker      worker.init_process()    
File "/layers/google.python.pip/pip/lib/python3.8/site-packages/gunicorn/workers/base.py", line 134, in init_process      self.load_wsgi()    
File "/layers/google.python.pip/pip/lib/python3.8/site-packages/gunicorn/workers/base.py", line 146, in load_wsgi      self.wsgi = self.app.wsgi()    
File "/layers/google.python.pip/pip/lib/python3.8/site-packages/gunicorn/app/base.py", line 67, in wsgi      self.callable = self.load()    
File "/layers/google.python.pip/pip/lib/python3.8/site-packages/gunicorn/app/wsgiapp.py", line 58, in load      return self.load_wsgiapp()    
File "/layers/google.python.pip/pip/lib/python3.8/site-packages/gunicorn/app/wsgiapp.py", line 48, in load_wsgiapp      return util.import_app(self.app_uri)    
File "/layers/google.python.pip/pip/lib/python3.8/site-packages/gunicorn/util.py", line 412, in import_app      app = app(*args, **kwargs)    
File "/workspace/app.py", line 38, in get_flask_app      CORS(flask_app)    
File "/layers/google.python.pip/pip/lib/python3.8/site-packages/flask_cors/extension.py", line 59, in __init__      self.init_app(app, **kwargs)    
File "/layers/google.python.pip/pip/lib/python3.8/site-packages/flask_cors/extension.py", line 81, in init_app      getLogger(app).info("Configuring CORS with resources: %s", resources_human)    
File "/layers/google.python.pip/pip/lib/python3.8/site-packages/flask_cors/core.py", line 356, in getLogger      
return logging.getLogger("%s.cors" % app.logger_name)  AttributeError: 'Flask' object has no attribute 'logger_name'

当我删除 CORS(flask_app) 时，一切正常。除了我想修复的 CORS 问题。

这是我的完整app.py:

# flask packages
from flask import Flask, request, app
from flask_cors import CORS
from flask_restful import Api
from flask_mongoengine import MongoEngine
from flask_jwt_extended import JWTManager
import logging


# local packages
from api.routes import create_routes

# external packages
import os

# default mongodb configuration
default_config = {'MONGODB_SETTINGS': {
                    'db': '(....)',
                    'host': '(....)',
                    'port': 27017,
                    'username': 'admin',
                    'password': 'password',
                    'authentication_source': 'admin'},
                    'JWT_SECRET_KEY': '(...)'}


def get_flask_app(config: dict = None) -> app.Flask:
    """
    Initializes Flask app with given configuration.
    Main entry point for wsgi (gunicorn) server.
    :param config: Configuration dictionary
    :return: app
    """
    # init flask
    logging.getLogger('flask_cors').level = logging.DEBUG

    flask_app = Flask(__name__)
    CORS(flask_app)

    # configure app
    config = default_config if config is None else config
    flask_app.config.update(config)

    # load config variables
    if 'MONGODB_URI' in os.environ:
        flask_app.config['MONGODB_SETTINGS'] = {'host': os.environ['MONGODB_URI'],
                                                'retryWrites': False}
    if 'JWT_SECRET_KEY' in os.environ:
        flask_app.config['JWT_SECRET_KEY'] = os.environ['JWT_SECRET_KEY']

    # init api and routes
    api = Api(app=flask_app)
    create_routes(api=api)

    # init mongoengine
    db = MongoEngine(app=flask_app)

    # init jwt manager
    jwt = JWTManager(app=flask_app)

    return flask_app





if __name__ == '__main__':
    # Main entry point when run in stand-alone mode.
    app = get_flask_app()
    app.run(host='0.0.0.0', port=8080)

使用Google云平台。这可能是我的问题的关键吗？我的 app.yaml 是：

runtime: python38
entrypoint: gunicorn -b :$PORT 'app:get_flask_app()'

我会尝试看看本地发生了什么，也许在这里更容易解决。想着什么时候在这里重新输入问题。

已经更新了我的 Flask-Cors (flask-cors)。试了很多东西都没用，所以才有这个问题。

非常感谢/谢谢！！

Answer 1

添加这部分：

Flask.logger_name = "listlogger"

终于帮我解决了。现在它能够找到 logger_name。该列表记录器只是一个随机名称。

我在打开应用程序之前添加了它 + CORS(app):

    Flask.logger_name = "listlogger"
    flask_app = Flask(__name__)
    CORS(flask_app)

'logger_name' 使用 Flask 在我的 python 应用中启用 cors 时丢失

'logger_name' missing when enabling cors in my python app using flask

python

flask

flask-cors