Python Flask app config采用其默认值，而不是my config.py

这是我的烧瓶应用程序的config.py

import os

class DefaultConfig(object):

        PROJECT = 'SEARCH & FILTER '
        PROJECT_ROOT = os.path.abspath(os.path.dirname(os.path.dirname(__file__$
        DEBUG = True
        TESTING = False
        SECRET_KEY = 'secret key'
        SERVER_NAME = 'https://s.herokuapp.com/'
        PREFERRED_URL_SCHEME = 'https'
        SQLALCHEMY_DATABASE_URI = os.environ['DATABASE_URL']
        SQLALCHEMY_TRACK_MODIFICATIONS = True
        SQLALCHEMY_ECHO = True
        NGROK_DOMAIN = 'https://s.herokuapp.com/'
        SHOPIFY_API_KEY = '*********************'
        SHOPIFY_SHARED_SECRET = '************************'

当我运行我的应用程序并尝试打印应用程序的配置详细信息时

print current_app.config.get('SHOPIFY_API_KEY')

它一无所获 所以，我试着打印

print current_app.config

已打印以下详细信息

<Config {'SESSION_REFRESH_EACH_REQUEST': True, 'USE_X_SENDFILE': False, 'PREFERRED_URL_SCHEME': 'http', 'ENV': 'production', 'DEBUG': False, 'MAX_CONTENT_LENGTH': None, 'TESTING': False, 'SEND_FILE_MAX_AGE_DEFAULT': datetime.timedelta(0, 43200), 'TRAP_BAD_REQUEST_ERRORS': None, 'SESSION_COOKIE_NAME': 'session', 'SECRET_KEY': None, 'APPLICATION_ROOT': '/', 'EXPLAIN_TEMPLATE_LOADING': False, 'SESSION_COOKIE_SECURE': False, 'TRAP_HTTP_EXCEPTIONS': False, 'JSONIFY_MIMETYPE': 'application/json', 'PROPAGATE_EXCEPTIONS': None, 'JSON_SORT_KEYS': True, 'MAX_COOKIE_SIZE': 4093, 'SESSION_COOKIE_DOMAIN': None, 'SESSION_COOKIE_SAMESITE': None, 'PRESERVE_CONTEXT_ON_EXCEPTION': None, 'JSONIFY_PRETTYPRINT_REGULAR': False, 'SESSION_COOKIE_HTTPONLY': True, 'JSON_AS_ASCII': True, 'PERMANENT_SESSION_LIFETIME': datetime.timedelta(31), 'SERVER_NAME': None, 'TEMPLATES_AUTO_RELOAD': None, 'SESSION_COOKIE_PATH': None}>

为什么我的给定凭据尚未设置为我的应用程序

---

提前谢谢

如果要使用

从_pyfile

加载配置，请使用以下两个文件：

app.py

from flask import Flask
app = Flask(__name__)
app.config.from_pyfile('app_config.py')
print(app.config['FOO'])

from flask import Flask
app = Flask(__name__)
app.config.from_object('app_config.DefaultConfig')
print(app.config['FOO'])

app_config.py

import os

class DefaultConfig(object):

        PROJECT = 'SEARCH & FILTER '
        PROJECT_ROOT = os.path.abspath(os.path.dirname(os.path.dirname(__file__$
        DEBUG = True
        TESTING = False
        SECRET_KEY = 'secret key'
        SERVER_NAME = 'https://s.herokuapp.com/'
        PREFERRED_URL_SCHEME = 'https'
        SQLALCHEMY_DATABASE_URI = os.environ['DATABASE_URL']
        SQLALCHEMY_TRACK_MODIFICATIONS = True
        SQLALCHEMY_ECHO = True
        NGROK_DOMAIN = 'https://s.herokuapp.com/'
        SHOPIFY_API_KEY = '*********************'
        SHOPIFY_SHARED_SECRET = '************************'

FOO = 'bar'

class DefaultConfig:
    FOO = 'bar'

如果要在配置中使用类，请改为使用

from_object

加载配置：

app.py

from flask import Flask
app = Flask(__name__)
app.config.from_pyfile('app_config.py')
print(app.config['FOO'])

from flask import Flask
app = Flask(__name__)
app.config.from_object('app_config.DefaultConfig')
print(app.config['FOO'])

app_config.py

import os

class DefaultConfig(object):

        PROJECT = 'SEARCH & FILTER '
        PROJECT_ROOT = os.path.abspath(os.path.dirname(os.path.dirname(__file__$
        DEBUG = True
        TESTING = False
        SECRET_KEY = 'secret key'
        SERVER_NAME = 'https://s.herokuapp.com/'
        PREFERRED_URL_SCHEME = 'https'
        SQLALCHEMY_DATABASE_URI = os.environ['DATABASE_URL']
        SQLALCHEMY_TRACK_MODIFICATIONS = True
        SQLALCHEMY_ECHO = True
        NGROK_DOMAIN = 'https://s.herokuapp.com/'
        SHOPIFY_API_KEY = '*********************'
        SHOPIFY_SHARED_SECRET = '************************'

FOO = 'bar'

class DefaultConfig:
    FOO = 'bar'

---

如果项目的布局如下所示：

helloshopify/
    - __init__.py
    - config_app.py

from .config import DefaultConfig

#...
app = Flask(__name__)
app.config.from_object(DefaultConfig)

您在

\uuuu init\uuuuuuu.py

中加载

config\u app.py

，然后只需传递绝对路径：

app.config.from_pyfile('config_app.py')

---

您应该导入它并从对象中使用。大概是这样的：

helloshopify/
    - __init__.py
    - config_app.py

from .config import DefaultConfig

#...
app = Flask(__name__)
app.config.from_object(DefaultConfig)

---

如何将配置加载到应用程序中？使用以下代码app.config.from_pyfile（'helloshopify/config_app.py'）我只想将我的应用程序实例添加到您的答案中，您可以在那里查看我如何加载配置。其他一切都由@Joost解释