title: Attempt to sum output returns TypeError: 'long' object is not iterable
body: <p>I am attempting to sum the total file sizes of specific file types. I am able to identify all the targeted files and get the sizes in bytes but I am running into an issue when trying to sum the output. I feel like I need to convert my output to a different type to execute <code>print(sum(file_size))</code></p>
  <p>Here is the code I have currently and the outputs.</p>
  <pre><code>from pathlib import Path
  
  # get file path
  for path in Path('C:\Users\file\path\here').rglob('*.kml'):
  
  # get size of file
      Path(path).stat()
      file_size =Path(path).stat().st_size
      print(file_size)
  </code></pre>
  <p>Output:</p>
  <pre><code>72830
  109576
  179554
  165898
  63151
  193100
  
  Process finished with exit code 0
  </code></pre>
  <p>My end goal is to have all of these outputs summed. Any help?</p>