Python 更新图形时出错无效的组件属性图形

Python 更新图形时出错无效的组件属性图形,python,plotly,plotly-dash,Python,Plotly,Plotly Dash,仅从excel文件创建一个简单的图形,即可正确加载,但在更新图形时,破折号会返回此错误: Failed component prop type: Invalid component prop figure key props supplied to Graph. Bad object: { “props”: { “id”: “average_country”, “figure”: { “data”: [ { “x”: [ “DE”, “ES”, “FR”, “IT”, “UK” ],

仅从excel文件创建一个简单的图形,即可正确加载,但在更新图形时,破折号会返回此错误:

Failed component prop type: Invalid component prop figure key props supplied to Graph.

Bad object: {

“props”: {

“id”: “average_country”,

“figure”: {

“data”: [

{
“x”: [
“DE”,
“ES”,
“FR”,
“IT”,
“UK”
],

“y”: [
[
2365.56,
4528.33875,
4851.085,
4325.14,
2107.921428571429
]
],

“type”: “bar”
}
],

“layout”: {

“title”: “Hyperzone”
}
}
},

“type”: “Graph”,

“namespace”: “dash_core_components”
}

Valid keys: [
“data”,
“layout”,
“frames”
]
我只是用一个数据透视表来创建一些国家的数据平均值,这是我的代码,数据透视表是正确的,并用我想要的值输出一个有效的结果,当我尝试用回调函数更新图形时,它返回一条错误消息

import pandas as pd
import dash
import dash_core_components as dcc
import dash_html_components as html
import plotly.graph_objs as go
from dash.dependencies import Input, Output

HP= pd.read_excel(r’C:\Users\salinejs\HP.xlsx’)
Columns = [‘Station’, ‘Week’, ‘Owner’, ‘Cost’,‘Country’]
HP_filtered = HP[Columns]

avaliable_weeks= HP_filtered[‘Week’].unique()

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

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

app.layout = html.Div([
html.Div([
html.Div([

    html.Div([
        dcc.Dropdown(
            id= 'Week_filter',
            options = [{'label':j, 'value':j}for j in avaliable_weeks],
            value= 'Week 42'
        ),

    ],
    style= {'float':'left', 'display':'inline-block'}
    ),



    html.Div([
        dcc.Graph(
            id='average_country',
        )
        ],
    )
    ]
),
],

)

@app.callback(
Output(‘average_country’, ‘figure’),
[Input(‘Week_filter’,‘value’)]
)

def update_value(week):

HP_filtered_week = HP_filtered[ HP_filtered['Week'] == week ]

pv = pd.pivot_table(HP_filtered_week, values='Cost', columns='Country', index='Week')

print(pv)
print(pv.columns)

return dcc.Graph(
    id='average_country',
    figure={
        'data': [{'x': pv.columns , 'y' : pv.values,'type': 'bar'
                  }],

        'layout':{
            'title': 'Cost',

        }


    })

if name == ‘main’:
app.run_server(debug=True)

有点晚了-你现在可能已经整理好了,但我只是有同样的错误,这里的答案可以节省我的时间

这是因为您将回调输出发送到figure,但函数返回的是整个dcc.Graph(),而不仅仅是figure

改变

return dcc.Graph(
    id='average_country',
    figure={
        'data': [{'x': pv.columns , 'y' : pv.values,'type': 'bar'
                  }],

        'layout':{
            'title': 'Cost',

        }


    })


有点晚了-你现在可能已经整理好了,但我只是有同样的错误,这里的答案可以节省我的时间

这是因为您将回调输出发送到figure,但函数返回的是整个dcc.Graph(),而不仅仅是figure

改变

return dcc.Graph(
    id='average_country',
    figure={
        'data': [{'x': pv.columns , 'y' : pv.values,'type': 'bar'
                  }],

        'layout':{
            'title': 'Cost',

        }


    })