title: pip install returning invalid syntax
body: <p>I've just installed python 3.6 which comes with pip</p>
  
  <p>However, in Windows command prompt, when I do: 'pip install bs4' it returns 'SyntaxError: invalid syntax' under the install word.</p>
  
  <p>Typing 'python' returns the version, which means it is installed correctly. What could be the problem?</p>