文件目录

.
├── instance
│   └── config.py
├── main
│   ├── __init__.py
│   └── __init__.pyc
├── run.py
└── venv

代码

# run.py
from main import app

if __name__ == '__main__':
    app.debug = app.config['DEBUG']
    app.run()

# main/__init__.py
from flask import Flask

app = Flask(__name__, instance_relative_config=True)
app.config.from_pyfile('config.py')

# instance/config.py
DEBUG = False

AppID = '123321'

出现的问题是 app.config 中无法加载我新建的 config.py 的内容？但是我设置的DEBUG为False却是可以加载的

# python shell
In [1]: from main import app

In [3]: app.config['DEBUG']
Out[3]: False

In [4]: app.config['AppID']
---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
<ipython-input-4-57356ec501a0> in <module>()
----> 1 app.config['AppID']

KeyError: 'AppID'

照着这里的内容去做的：https://spacewander.github.io...