我用蓝图划分了Programm，但是现在使用数据库的某些功能无法正常工作。使用以下代码行：
app = create_app()
ctx = app.app_context()
ctx.push()
我能够修复email.py，但是如果我运行该程序，则会收到两次警报，我认为这不应该是这样的：
C:\Users\Lukas\PycharmProjects\Preistracker\venv\lib\site-packages\flask_sqlalchemy\__init__.py:834: FSADeprecationWarning: SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and will be disabled by default in the future. Set it to True or False to suppress this warning.
warnings.warn(FSADeprecationWarning(
C:\Users\Lukas\PycharmProjects\Preistracker\venv\lib\site-packages\flask_sqlalchemy\__init__.py:834: FSADeprecationWarning: SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and will be disabled by default in the future. Set it to True or False to suppress this warning.
warnings.warn(FSADeprecationWarning(
初始化 .py
db = SQLAlchemy()
bcrypt = Bcrypt()
login_manager = LoginManager()
login_manager.login_view = 'users.login'
login_manager.login_message_category = 'info'
mail = Mail()
def create_app(config_class=Config):
app = Flask(__name__)
app.config.from_object(Config)
db.init_app(app)
bcrypt.init_app(app)
login_manager.init_app(app)
mail.init_app(app)
from main.users.routes import users
from main.articles.routes import articles
from main.main.routes import main
from main.scrapping.email import email
app.register_blueprint(users)
app.register_blueprint(articles)
app.register_blueprint(main)
app.register_blueprint(email)
return app
email.py
....
from main import db, create_app
from flask import Blueprint
email = Blueprint('email', __name__)
app = create_app()
ctx = app.app_context()
ctx.push()
def check_price():
articles = Article.query.all()
....