How the package Dash works in Python?

I’m leaning the package Dash which is the mose popular package about making a webpage of dashboard . The following is the sample code: from dash import Dash, dcc, html, Input, Output, callback import plotly.express as px import json external_stylesheets = [‘https://codepen.io/chriddyp/pen/bWLwgP.css’%5D app = Dash(__name__, external_stylesheets=external_stylesheets) fig = px.scatter(x=["a", "b", "c"], y=[1, 2, 3]) fig.update_layout(clickmode=’event+select’)… Read More How the package Dash works in Python?

How can I adjust the height of the columns via Dash Bootstrap Components?

I would like to obtain the following layout: With my implementation, I am able to achieve most of them, except Third and Fourth Component. import dash_bootstrap_components as dbc from dash import Dash, html, dcc, Input, Output,dash_table import pandas as pd import os app = Dash(external_stylesheets=[dbc.themes.BOOTSTRAP]) sidebar = dbc.Nav( [dbc.NavLink("test", href="/page-1") for i in range(90)], pills=True,… Read More How can I adjust the height of the columns via Dash Bootstrap Components?

How to have one item in the legend selected by default in plotly/dash?

How to have one item in the legend selected by default and the others should be deselected? I want the initial plot looking like this: #prepare thr chart fig = px.line(df, x=’date’, y=’diesel_price’, color=’region’, title=’Diesel price in the US’, labels={‘date’:’Date’, ‘diesel_price’:’Price ($)’, ‘region’:’Region’}) app.layout = html.Div([ html.H4(‘Metrics for trucking companies’), dcc.Graph(figure=fig), ]) if __name__ ==… Read More How to have one item in the legend selected by default in plotly/dash?

error with img build in method decode bytes – Dash plotly

I can’t upload a img to my app, when i try i just got a "broken image". i’m using this piece of code, the only piece of method that i found on plotly forum. encoded_image = base64.b64encode(open(r’\path\img.png’, ‘rb’).read()) html.Div([ html.Img(id=’image_png’, src=’data:image/png;base64,{}’.format((encoded_image.decode))) Inspecting my app page, this error is present <img id="logo_png" src="data:image/png;base64,<built-in method decode of… Read More error with img build in method decode bytes – Dash plotly

how to make same width of various menus?

I have datePickerRange(), Input() and Dropdown(), their width are different, like showing below(white area). Thank you so much for your help dcc.DatePickerRange(id=’date-range’, min_date_allowed=datetime(2020,1,1), max_date_allowed=datetime.today(), start_date=datetime(2021,10,30), end_date=datetime(2021,11,2), style = { ‘font-size’: ‘3px’,’display’: ‘inline-block’, ‘border-radius’ : ‘2px’, ‘border’ : ‘1px solid #ccc’, ‘color’: ‘#333’, ‘border-spacing’ : ‘0’, ‘border-collapse’ :’separate’ } ) ] ), dbc.Label(‘DTS Heatmap Start Time:’),… Read More how to make same width of various menus?

How to format the JSON?

I am trying to output json data from a pandas dataframe directly into dcc.store (plotly-dash component), which is the output with id ‘intermediate-value’. So, I made a dictionary, and I dumped the JSON. I keep getting this error: Expected type: (<class ‘tuple’>, <class ‘list’>) Received value of type <class ‘str’> I understand it says I… Read More How to format the JSON?