title: i need to know exactly how to use string.maketrans
body: <p>I am new to python, please can any one tell me how to use <code>string.maketrans ()</code>, with some examples please ?</p>
  
  <p>I find some like:</p>
  
  <pre><code>allchars = string.maketrans ('', '')
  </code></pre>
  
  <p>that return the character map, but i couldn't figure out how to use this approach</p>
  
  <p>Thanks for your help</p>