title: python print string from variable name in string
body: <p>I want to display a text. and in the text there is a variable name, and the name of the variable is already in the previous definition.</p>
  
  <p>example code</p>
  
  <pre><code>my_dict = {}
  my_dict['name']='Candra'
  
  #I want to be like this
  print('my name is {name}')
  
  #not like this
  print('my name is '+ my_dict['name'])
  </code></pre>