Include space before SI-prefix

In the SI system, prefix and units should be written after a space (see e.g.: https://en.wikipedia.org/wiki/International_System_of_Units#General_rules) I haven’t found an option to do this. The issue can be reproduced by the example below where I get a space between the prefix (e.g. k) and the unit W. Alternatively I could of course skip the space before the W, but I cannot find a way to add a space between the last digit and the SI-prefix.

import dash
import dash_table
import pandas as pd

df = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/solar.csv')

app = dash.Dash(__name__)
app.layout = dash_table.DataTable(
    id='table',
    columns=[{'name': i, 'id': i, 'type': 'numeric', 'format': {'locale': {'symbol': ['', ' W']}, 'specifier': '$.3s'}} for i in df.columns],
    data=df.to_dict('records'),
)

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

[Peque]

For future reference, just in case I get an answer there, here is a question I posted in SO about this topic.

[asnyv]

@Peque No, I haven’t 🙄 Ended up writing the unit in the column headers (e.g. W) and living with the e.g. 1.3M for the table values…

But yes, I’m a bit surprised myself 😅 Would also have been nice to be able to set SI as the overall standard format for an app. Annoying with e.g. B popping up instead of G for 1e9 if you haven’t remembered to specify the SI syntax.