title: Python .pyw extension does not work
body: <p>I'm trying to run a program without cmd window pop-up when I double click it or when I make it exe. So I wanted to save it as .pyw extension but when I double click to script, shell can't run it. It says I need to select the program to run it or search online. How can I fix this? Windows- Python 3.4</p>
  
  <p>It was okay in 3.5 when I use .pyw extension. First time I see this problem.</p>