Python Flask RuntimeError:会话不可用，因为使用Flask会话时未设置密钥

由于此错误，我的heroku应用程序将不允许我注册

RuntimeError: The session is unavailable because no secret key was set.  Set the secret_key on the application to something unique and secret.

但是，我将会话键设置得很好

run.py

：

from app import app, db, manager, sess
import os

app.config['SESSION_TYPE'] = 'filesystem'
app.config['SECRET_KEY'] = 'reds209ndsldssdsljdsldsdsljdsldksdksdsdfsfsfsfis'
sess.init_app(app)
app.secret_key()
if __name__ == "__main__":
    app.debug = True;
    app.run()
    # manager.run()

from flask import Flask 
from flask_session import Session

app = Flask(__name__)
sess = Session()
sess.init_app(app)

app.config['SESSION_TYPE'] = 'memcached'
app.config['SECRET_KEY'] = 'redsfsfsfsfis'

from app import views, db

\uuuu init\uuuuu.py

：

from app import app, db, manager, sess
import os

app.config['SESSION_TYPE'] = 'filesystem'
app.config['SECRET_KEY'] = 'reds209ndsldssdsljdsldsdsljdsldksdksdsdfsfsfsfis'
sess.init_app(app)
app.secret_key()
if __name__ == "__main__":
    app.debug = True;
    app.run()
    # manager.run()

from flask import Flask 
from flask_session import Session

app = Flask(__name__)
sess = Session()
sess.init_app(app)

app.config['SESSION_TYPE'] = 'memcached'
app.config['SECRET_KEY'] = 'redsfsfsfsfis'

from app import views, db

---

我已经看过了，但它并没有解决我的问题。

多亏了大卫主义，我找到了答案

我不得不把

sess.init\u应用程序（应用程序）

之后

app.config['SECRET\u KEY']='redsfis'