title: Why don't I have to add 'python' before invoking Python script?
body: <p>I am new to programming, and Python is my first language.
  I've added Python to my Path, but when I use the Command Prompt, I don't have to add python before <em>myscript.py</em> as opposed to many tutorials I've seen. Here is an example:</p>
  
  <pre><code>C:\User\MyName&gt;Welcome.py
  Welcome to Python
  Python is fun
  </code></pre>
  
  <p>When I enter 'python', there is a subsequent error:</p>
  
  <pre><code>C:\User\MyName&gt;python Welcome.py
  python: can't open file 'Welcome.py': [Errno 2] No such file or directory
  </code></pre>
  
  <p>Do I really need the 'python'?
  Thanks in advance!</p>