之前已经：
后来断开连接后，再去连接上服务器，
进入虚拟环境：
［已解决］CentOS中退出了virtualenv之后如何再进入之前virtualenv
再去运行flask，结果出错：
(SIPEvents) SIPEvents flask run –host=0.0.0.0 Usage: flask run [OPTIONS] Error: Could not locate Flask application. You did not provide the FLASK_APP environment variable. For more information see http://flask.pocoo.org/docs/latest/quickstart/ (SIPEvents) SIPEvents |
搜：
flask run Error: Could not locate Flask application. You did not provide the FLASK_APP environment variable.
参考：
python – Error while running Minimal Flask application – Stack Overflow
Could not locate Flask application. You did not provide the FLASK_APP environment variable.
后来才注意到，之前的帖子里：
是先要去设置FLASK_APP这个环境变量的：
export FLASK_APP=hello.py
然后才能运行
而此处的警告，也是提示要去设置FLASK_APP
所以就先去设置，再运行：
(SIPEvents) SIPEvents export FLASK_APP=hello.py (SIPEvents) SIPEvents export FLASK_APP=hello.py (SIPEvents) SIPEvents flask run –host=0.0.0.0 (SIPEvents) SIPEvents export FLASK_DEBUG=1 (SIPEvents) SIPEvents flask run –host=0.0.0.0 * Serving Flask app "hello" * Forcing debug mode on * Running on http://0.0.0.0:5000/ (Press CTRL+C to quit) * Restarting with stat * Debugger is active! * Debugger pin code: 353-795-063 |
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