Plotting graphs using dash (Python package)

Question

I have been trying to make a report using the dash package in Python, but there is an issue with the code starting from how I defined the figure. The data file has 2 columns with headers 'Name' and 'marks' where the 'Name' column is filled with string values and 'mark' with integers.

Debug = False as I am running this code on Spyder.

import dash
import dash_core_components as dcc
import dash_html_components as html
import pandas as pd

Data = pd.read_csv(r'C:\Users\Karthik\Desktop\personal\python\data.csv', encoding = "ISO-8859-1")
app = dash.Dash()

app.layout = html.Div(children=[
    html.H1(children='Dash Tutorials'),
    dcc.Graph(id='example',
        figure={
            'data':[{'x': Data['Name'],'y':Data['marks'],'type'='line', 'name'='boats'} 
            ],
            'layout': {
                'title': 'Basic Dash Example'
            }
           } 
        )
])

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

im not quite sure myself, the code analysis says its due to invalid syntax(pyflakes E) — Karthik Apadodharanan
– Karthik Apadodharanan, Commented Apr 6, 2020 at 10:36

ForceBru · Accepted Answer · 2020-04-06 10:38:43Z

0

This line has invalid syntax:

'data':[{'x': Data['Name'],'y':Data['marks'],'type'='line', 'name'='boats'}

Entries in dictionary literals are defined like key: value, not key = value, so you should change it to this:

'data':[{'x': Data['Name'],'y': Data['marks'],'type': 'line', 'name': 'boats'}

If you want to use the key=value syntax anyway, the dict class supports it:

'data': [dict(
    x=Data['Name'],
    y=Data['marks'],
    type='line',
    name='boats'
)]

answered Apr 6, 2020 at 10:38

ForceBru

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