Syntax Error: "]," invalid syntax - Dash Graph Building

Question

我是 Dash 的新手，我必须构建一个 Web 应用程序，在其中打印从麦克风和加速度计读取的一些数据。

现在我正在尝试了解如何设置各种图表和信息。我正在按照 Dash 用户指南中给出的示例进行操作。

错误在第 23 行，即我设置数据和布局的行。他似乎不喜欢 ]，但老实说，我不知道该如何解决。

import dash
import dash_core_components as dcc 
import dash_html_components as html 

external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']



app = dash.Dash(__name__,external_stylesheets=external_stylesheets)

app.layout = html.Div(children=[
    html.H1(children='Hello Dash'), 

    html.Div(children='''Dash: A web application framework for Python.'''), 

    dcc.Graph(id='example-graph',
        figure={
            'data': [
                {'x': [1, 2, 3], 'y': [4, 1, 2], 'type': 'bar', 'name':
                {'x': [1, 2, 3], 'y': [2, 4, 5], 'type': 'bar', 'name':
            ],
            'layout': {
                'title': 'Dash Data Visualization'
            }
        }
    )
])

if __name__ == '__main__':
    app.run_server(debug=True)

语法错误：文件 "app.py"，第 23 行 ], ^ 语法错误：语法无效

为什么会出现这种错误？

P.s.: 用户指南（第一个例子）-> https://dash.plot.ly/getting-started

Answer 1

试试这个：

import dash
import dash_core_components as dcc 
import dash_html_components as html 

external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']



app = dash.Dash(__name__,external_stylesheets=external_stylesheets)

app.layout = html.Div(children=[
    html.H1(children='Hello Dash'), 

    html.Div(children='''Dash: A web application framework for Python.'''), 

    dcc.Graph(id='example-graph',
        figure={
            'data': [
                {'x': [1, 2, 3], 'y': [4, 1, 2], 'type': 'bar', 'name':'a'},
                {'x': [1, 2, 3], 'y': [2, 4, 5], 'type': 'bar', 'name':'b'}
            ],
            'layout': {
                'title': 'Dash Data Visualization'
            }
        }
    )
])

if __name__ == '__main__':
    app.run_server(debug=True)

输出

Running on http://127.0.0.1:8050/
Debugger PIN: 201-392-957
 * Serving Flask app "main" (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
Running on http://127.0.0.1:8050/
Debugger PIN: 906-971-228

Syntax Error: "]," invalid syntax - Dash Graph Building

Syntax Error: "]," invalid syntax - Dash Graph Building

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