socket.gaierror: [Errno 8] nodename or servname provided, or not known : Dash App答案

【问题标题】：socket.gaierror: [Errno 8] nodename nor servname provided, or not known : Dash Appsocket.gaierror: [Errno 8] nodename or servname provided, or not known : Dash App
【发布时间】：2020-12-11 16:44:01
【问题描述】：

我正在尝试部署 Dash + Flask 应用程序。

app.py内容：

if __name__ == "__main__":
    app.run(host='domain.test', port=3000, debug=True)

我遇到了这个错误：

 * Serving Flask app "app" (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: on
Traceback (most recent call last):
  File "host_app.py", line 12, in <module>
    app.run(host='domain.tests', port=3000, debug=True)
  File "/opt/anaconda3/lib/python3.7/site-packages/flask/app.py", line 990, in run
    run_simple(host, port, self, **options)
  File "/opt/anaconda3/lib/python3.7/site-packages/werkzeug/serving.py", line 1030, in run_simple
    s.bind(server_address)
socket.gaierror: [Errno 8] nodename nor servname provided, or not known

【问题讨论】：

This 为我工作。

标签： python sockets flask

【解决方案1】：

我会将此行添加到您的 /etc/hosts 文件中：

127.0.0.1   domain.test

【讨论】：