Matplotlib+Flask

import base64

from io import BytesIO

from flask import Flask

from matplotlib.figure import Figure

app = Flask(__name__)

@app.route("/")

def hello():

    # Generate the figure **without using pyplot**.

    fig = Figure()

    ax = fig.subplots()

    ax.plot([1, 2])

    # Save it to a temporary buffer.

    buf = BytesIO()

    fig.savefig(buf, format="png")

    # Embed the result in the html output.

    data = base64.b64encode(buf.getbuffer()).decode("ascii")

    return f"<img src='data:image/png;base64,{data}'/>"

app.run(host='0.0.0.0', port=8080)

https://www.geeksforgeeks.org/visualize-data-from-csv-file-in-python/