title: How to unpack a single variable tuple in Python3?
body: <p>I have a tuple-</p>
  <p><code>('name@mail.com',)</code>.</p>
  <p>I want to unpack it to get 'name@mail.com'.</p>
  <p>How can I do so?</p>
  <p>I am new to Python so please excuse.</p>