title: How to write a function to return the variable name?
body: <p>I want a function that can return the variable/object name as str like this :</p>
  
  <pre><code>def get_variable_name (input_variable):
      ## some codes
  
  &gt;&gt;get_variable_name(a)
  'a'
  
  &gt;&gt;get_variable_name(mylist)
  'mylist'
  </code></pre>
  
  <p>it looks like silly but i need the function to construct expression regarding to the variable for later on 'exec()'. Can someone help on how to write the 'get_variable_name' ?</p>