title: os. system wget returns an empty file
body: <p>I'm dowloading images from a website.
  So, I used the following code snippet in python:
  My OS is windows:</p>
  
  <pre><code>import os
  import subprocess
  from pathlib import Path
  import wget
  
  reference = "L-TN-00179633"
  id = 0
  image = "https://static-house.jumia.com.tn/static/p/no-name-4425-70616-1-zoom.jpg"        
  filename = os.path.join("D:\\CNN", reference + "-" + str(id) + "." + "jpg")
  subprocess.run(['wget', '-O', filename, image])
  </code></pre>
  
  <p>but the result is empty files. Why ?</p>