由于`plotly`使用`flask`作为服务器,因此您的`sys.exit(“Bye!”)`代码实际上永远不会被执行,因此服务器永远不会停止。因此有两种方法可以停止服务器:
以下是Flask的代码,您需要将其转换为等效的plotly代码:
from flask import request
def shutdown_server():
func = request.environ.get('werkzeug.server.shutdown')
if func is None:
raise RuntimeError('Not running with the Werkzeug Server')
func()
现在,您可以通过调用此函数关闭服务器:
@app.route('/shutdown', methods=['POST'])
def shutdown():
shutdown_server()
return 'Server shutting down...'
更新:
对于plotly,您可以按照以下方式编写代码。
import dash
import dash_core_components as dcc
import dash_html_components as html
from flask import request
print(dcc.__version__)
external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']
app = dash.Dash(__name__, external_stylesheets=external_stylesheets)
app.layout = html.Div([
dcc.Location(id='url', refresh=False),
dcc.Link('Navigate to "/"', href='/'),
html.Br(),
dcc.Link('Navigate to "/page-2"', href='/page-2'),
html.Div(id='page-content')
])
def shutdown():
func = request.environ.get('werkzeug.server.shutdown')
if func is None:
raise RuntimeError('Not running with the Werkzeug Server')
func()
@app.callback(dash.dependencies.Output('page-content', 'children'),
[dash.dependencies.Input('url', 'pathname')])
def display_page(pathname):
if pathname =='/shutdown':
shutdown()
return html.Div([
html.H3('You are on page {}'.format(pathname))
])
if __name__ == '__main__':
app.run_server(debug=True)
raise RuntimeError('Not running with the Werkzeug Server') RuntimeError: Not running with the Werkzeug Server
- undefined