title: What is print(f"...")
body: <p>I am reading through a python script that takes an input of XML files and outputs an XML file. However, I do not understand the printing syntax. Can someone please explain what <code>f</code> in <code>print(f"...")</code> does?</p>
  
  <pre><code>args = parser.parser_args()
  
  print(f"Input directory: {args.input_directory}")
  print(f"Output directory: {args.output_directory}")
  </code></pre>