title: Python execute if/else statement based on sys.argv passed on Command Line
body: <p>I am new to Python and the syntax is really throwing me off. I need to execute a script in which I'd like to execute a function based on the arguments passed on Command Line. Following is the pseudo code:</p>
  
  <pre><code>import sys
  
  ...
  Code
  Authentication
  Role Validation 
  ...
  
  Arg[1]
  Arg[2]
  Arg[3]
  
  if(Arg[3] !exist)
    execute Func1 with Arg[1] &amp; Arg[2]
  else if 
    execute Func 2 with Arg[1], [2] &amp; [3]
  </code></pre>
  
  <p>Can someone guide me how to structure this in Python's world or if there is any other way to do it?</p>