Python 错误：[Errno 111]连接在flask-mail中被拒绝

我有两个演示，第一个不起作用，但第二个起作用。我想知道为什么

错误：

raise err
error: [Errno 111] Connection refused

\uuuu init\uuuuu.py

mail = Mail()

MAIL_SERVER = 'smtp.gmail.com'
MAIL_PORT = 465
MAIL_USE_TLS = False
MAIL_USE_SSL= True
MAIL_USERNAME = os.environ.get('MAIL_USERNAME')
MAIL_PASSWORD = os.environ.get('MAIL_PASSWORD')

def create_app(config_name):
    app = Flask(__name__)
    app.config.from_object(config[config_name])

    mail.init_app(app)
    app.debug = True

    return app

app = create_app(os.getenv('FLASK_CONFIG') or 'default')

from ..mymail import mmail

mmail();

from flask.ext.mail import Message
from . import mail

def mmail():
    msg = Message(
      'Hello',
       sender='user@gmail.com',
       recipients=
       ['xxxxxxxxxx@hotmail.com'])
    msg.body = "This is the email body"
    mail.send(msg)
    return "Sent"

视图.py

mail = Mail()

MAIL_SERVER = 'smtp.gmail.com'
MAIL_PORT = 465
MAIL_USE_TLS = False
MAIL_USE_SSL= True
MAIL_USERNAME = os.environ.get('MAIL_USERNAME')
MAIL_PASSWORD = os.environ.get('MAIL_PASSWORD')

def create_app(config_name):
    app = Flask(__name__)
    app.config.from_object(config[config_name])

    mail.init_app(app)
    app.debug = True

    return app

app = create_app(os.getenv('FLASK_CONFIG') or 'default')

from ..mymail import mmail

mmail();

from flask.ext.mail import Message
from . import mail

def mmail():
    msg = Message(
      'Hello',
       sender='user@gmail.com',
       recipients=
       ['xxxxxxxxxx@hotmail.com'])
    msg.body = "This is the email body"
    mail.send(msg)
    return "Sent"

mymail.py

mail = Mail()

MAIL_SERVER = 'smtp.gmail.com'
MAIL_PORT = 465
MAIL_USE_TLS = False
MAIL_USE_SSL= True
MAIL_USERNAME = os.environ.get('MAIL_USERNAME')
MAIL_PASSWORD = os.environ.get('MAIL_PASSWORD')

def create_app(config_name):
    app = Flask(__name__)
    app.config.from_object(config[config_name])

    mail.init_app(app)
    app.debug = True

    return app

app = create_app(os.getenv('FLASK_CONFIG') or 'default')

from ..mymail import mmail

mmail();

from flask.ext.mail import Message
from . import mail

def mmail():
    msg = Message(
      'Hello',
       sender='user@gmail.com',
       recipients=
       ['xxxxxxxxxx@hotmail.com'])
    msg.body = "This is the email body"
    mail.send(msg)
    return "Sent"

---

奇怪的是，此示例将正常工作：

from flask.ext.mail import Mail, Message
import os

DEBUG = True

MAIL_SERVER='smtp.gmail.com'
MAIL_PORT=465
MAIL_USE_TLS = False
MAIL_USE_SSL= True
MAIL_USERNAME = os.environ.get('MAIL_USERNAME')
MAIL_PASSWORD = os.environ.get('MAIL_PASSWORD')

def create_app(config_name):
    app = Flask(__name__)
    app.config.from_object(__name__)
    mail = Mail(app)

    msg = Message(
      'Hello',
       sender='user@gmail.com',
       recipients=
       ['xxxxxxxxxx@hotmail.com'])
    msg.body = "This is the email body"
    mail.send(msg)
    return "Sent"

app = create_app(os.getenv('FLASK_CONFIG') or 'default')

---

那么，问题是什么呢？

这里的问题是，你不是在比较苹果和苹果

• 在非工作示例中，您使用名为

  config

  的未指定字典类对象的值配置应用程序，该对象传入名为

  FLASK\u config

  的环境变量中的键（如果未定义

  FLASK\u config

  ，则返回“默认值”）

• 在工作示例中，使用当前模块中定义的大写名称配置应用程序：

  app.config.from_object(__name__)
  # config_name is ignored
  

传递到非工作示例中的任何键都提供了一个对象，该对象不具有要用于

邮件的凭据

您可以：


首先通过默认设置配置应用程序，然后从
config
字典加载覆盖：

app.config.from_object(__name__)
app.config.from_object(config[config_name])


或者确保您的配置具有正确的值：

config = {
    "development": SomeDevConfig,
    "staging": SomeStagingConfig,
    "production": SomeProductionConfig,
    "default": SomeDefaultConfig
}


在第一个示例中，
config
来自哪里？