I've been working on a Flask app for a few weeks. I finished it today and went to deploy it... and now it won't launch.
I haven't added or removed any code so assume something has changed in the deployment process?
Anyway, here is the full error displayed in the terminal:
Traceback (most recent call last):
File "C:\Users\Kev\Documents\Projects\Docket\manage.py", line 5, in <module>
from app import create_app, db
File "C:\Users\Kev\Documents\Projects\Docket\app\__init__.py", line 21, in <module>
from app.api import api, blueprint, limiter
File "C:\Users\Kev\Documents\Projects\Docket\app\api\__init__.py", line 2, in <module>
from flask_restplus import Api
File "C:\Users\Kev\.virtualenvs\Docket-LasDxOWU\lib\site-packages\flask_restplus\__init_
_.py", line 4, in <module>
from . import fields, reqparse, apidoc, inputs, cors
File "C:\Users\Kev\.virtualenvs\Docket-LasDxOWU\lib\site-packages\flask_restplus\fields.
py", line 17, in <module>
from werkzeug import cached_property
ImportError: cannot import name 'cached_property' from 'werkzeug' (C:\Users\Kev\.virtualen
vs\Docket-LasDxOWU\lib\site-packages\werkzeug\__init__.py)
Also here's the code in the three files mentioned.
manage.py:
from apscheduler.schedulers.background import BackgroundScheduler
from flask_script import Manager
from flask_migrate import Migrate, MigrateCommand
from app import create_app, db
app = create_app()
app.app_context().push()
manager = Manager(app)
migrate = Migrate(app, db)
manager.add_command('db', MigrateCommand)
from app.routes import *
from app.models import *
def clear_data():
with app.app_context():
db.session.query(User).delete()
db.session.query(Todo).delete()
db.session.commit()
print("Deleted table rows!")
@manager.command
def run():
scheduler = BackgroundScheduler()
scheduler.add_job(clear_data, trigger='interval', minutes=15)
scheduler.start()
app.run(debug=True)
if __name__ == '__main__':
clear_data()
manager.run()
app/__init__.py:
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager
from config import Config
db = SQLAlchemy()
login = LoginManager()
def create_app():
app = Flask(__name__)
app.config.from_object(Config)
db.init_app(app)
login.init_app(app)
login.login_view = 'login'
from app.api import api, blueprint, limiter
from app.api.endpoints import users, todos, register
from app.api.endpoints.todos import TodosNS
from app.api.endpoints.users import UserNS
from app.api.endpoints.register import RegisterNS
api.init_app(app)
app.register_blueprint(blueprint)
limiter.init_app(app)
api.add_namespace(TodosNS)
api.add_namespace(UserNS)
api.add_namespace(RegisterNS)
return app
api/__init__.py:
from logging import StreamHandler
from flask_restplus import Api
from flask import Blueprint
from flask_limiter import Limiter
from flask_limiter.util import get_remote_address
blueprint = Blueprint('api', __name__, url_prefix='/api')
limiter = Limiter(key_func=get_remote_address)
limiter.logger.addHandler(StreamHandler())
api = Api(blueprint, doc='/documentation', version='1.0', title='Docket API',
description='API for Docket. Create users and todo items through a REST API.\n'
'First of all, begin by registering a new user via the registration form in the web interface.\n'
'Or via a `POST` request to the `/Register/` end point', decorators=[limiter.limit("50/day", error_message="API request limit has been reached (50 per day)")])
I've tried reinstalling flask & flask_restplus but no-luck.
