app.py

from flask import Flask, render_template
import csv

app = Flask(__name__)

@app.route('/', methods = ["GET", "POST"])
def index():
    table_data = []
    with open('data.csv', 'r') as csvfile:
        csvreader = csv.reader(csvfile)
        for row in csvreader:
            table_data.append(row)
    return render_template('index.html', table_data=table_data)


@app.route('/login', methods = ["GET", "POST"])
def login():
    return render_template('login.html')

if __name__ == '__main__':

    app.run(debug=True)