app.py

from flask import Flask, request, render_template
import pickle

with open('bodyFatModelRfr.pickle', 'rb') as f:
    model = pickle.load(f)

app = Flask(__name__)

@app.route('/', methods=['GET', 'POST'])
def predict():
    if request.method == 'POST':
        my_dict = request.form

        density = float(my_dict['density'])
        abdomen = float(my_dict['abdomen'])
        chest = float(my_dict['chest'])
        weight = float(my_dict['weight'])
        hip = float(my_dict['hip'])

        input_features = [[density, abdomen, chest, weight, hip]]
        prediction = model.predict(input_features)[0].round(2)

        string = 'Percentage of Body Fat Estimated is: ' + str(prediction) + '%'

        return render_template('show.html', string=string)

    return render_template('home.html')

if __name__ == "__main__":
    app.run(debug=True)