app.py

# -*- coding: utf-8 -*-
import numpy as np
import pandas as pd
from flask import Flask, request, render_template
import pickle

app = Flask(__name__)
model = pickle.load(open('linear_regression_model.pkl','rb'))
@app.route('/')
def home():
    return render_template('index.html')

@app.route('/predict',methods=['POST'])
def predict():
    input_features = [float(x) for x in request.form.values()]
    features_value = [np.array(input_features)]
    
    features_name = [ "age", "trestbps","chol","thalach", "oldpeak", "sex_0",
                       "  sex_1", "cp_0", "cp_1", "cp_2", "cp_3","  fbs_0",
                        "restecg_0","restecg_1","restecg_2","exang_0","exang_1",
                        "slope_0","slope_1","slope_2","ca_0","ca_1","ca_2","thal_1",
                        "thal_2","thal_3"]
    
    df = pd.DataFrame(features_value, columns=features_name)
    output = model.predict(df)
        
    if output == 1:
        res_val = "** heart disease **"
    else:
        res_val = "no heart disease "
        

    return render_template('index.html', prediction_text='Patient has {}'.format(res_val))

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