title: how to access python from command line using py instead of python
body: <p>I have a very weird request. An executable I have has a system call to a python script which goes like py file1.py
  Now, in my system though py is shown as an unrecognized internal or external command. python file1.py works however.</p>
  
  <p>is there some way I can get my windows command prompt to recognize that py and python refer to the same thing? </p>