Flask shell_context_processor阻止站点加载

Question

我对Flask shell有问题。

File "/venv/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise
raise value
File "/sitebuild/site.py", line 6, in <module>
@app.shell_context_processor
AttributeError: 'NoneType' object has no attribute 'shell_context_processor'

我已经在.env，.flaskenv中甚至通过导出手动设置了环境变量。

site.py包含

from app import create_app, db
from app.models import User, Post

app = create_app()

@app.shell_context_processor
def make_shell_context():
    return {'app': app, 'db': db, 'User': User, 'Post': Post}

和主要的 init 具有create_app函数-

def create_app(config_class=Config):
    app = Flask(__name__, static_url_path='/static')
    app.config.from_object(config_class)

    db.init_app(app)
    migrate.init_app(app, db)
    login.init_app(app)
    mail.init_app(app)
    bootstrap.init_app(app)
    moment.init_app(app)

    return app

任何想法，我都出去了，网上看不到任何东西。