Flask and uWSGI - unable to load app 0 (mountpoint='') (callable not found or import error)

最新推荐文章于 2024-03-04 10:10:17 发布

转载最新推荐文章于 2024-03-04 10:10:17 发布 · 5.7k 阅读

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本文介绍了一种常见的uWSGI环境下Flask应用无法正确加载的问题，并提供了解决方案。主要原因是uWSGI不以__main__方式运行应用，导致找不到Flask实例。通过将Flask应用实例的导入移出if __name__ == '__main__':块，即可解决此问题。

Here is my directory structure:

-/path/to/folder/run.py -|app -|__init__.py -|views.py -|templates -|static

Contents of /path/to/folder/run.py

if __name__ == '__main__': from app import app #app.run(debug = True) app.run()

Contents of /path/to/folder/app/__init__.py

import os
from flask import Flask from flask.ext.sqlalchemy import SQLAlchemy from flask.ext.login import LoginManager #from flaskext.babel import Babel from config import basedir app = Flask(__name__) app.config.from_object('config') #app.config.from_pyfile('babel.cfg') db = SQLAlchemy(app) login_manager = LoginManager() login_manager.setup_app(app) login_manager.login_view = 'login' login_manager.login_message = u"Please log in to access this page." from app import views *** Operational MODE: preforking *** unable to find "application" callable in file /path/to/folder/run.py unable to load app 0 (mountpoint='') (callable not found or import error) *** no app loaded. going in full dynamic mode *** *** uWSGI is running in multiple interpreter mode *** spawned uWSGI worker 1 (pid: 26972, cores: 1) spawned uWSGI worker 2 (pid: 26973, cores: 1)

edited Dec 17 '13 at 18:02

akira

4,6621828

asked Aug 19 '12 at 23:30

Tampa

9,16940126209

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2 Answers

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up vote 13down voteaccepted

uWSGI doesn't load your app as __main__, so it never will find the app (since that only gets loaded when the app is run as name __main__). Thus, you need to import it outside of the if __name__ == "__main__": block.

Really simple change:

from app import app

if __name__ == "__main__": app.run()

Now you can run the app directly with python run.py or run it through uWSGI the way you have i