How to redirect a webpage to another webpage after a certain duration?

Solution

@app.route("/")
def loading():
    # return render_template('loading.html')
    return ' hello it is loading page'
    time.sleep(3)
    return redirect('http://127.0.0.1:5000/home')

return ' hello it is loading page'

time.sleep(3)

return redirect('http://127.0.0.1:5000/home')

@app.route("/")
def loading():
    return render_template('loading.html')

@app.route('/home')
def home():
    return ' hello it is home page'

3000 = 3 secs