title: python print hashlib.sha256 SyntaxError: invalid syntax
body: <p>I am reading the book "Mastering Bitcoin" (from Andreas M. Antonopoulos, page 193) and wanted to try something myself but got already stuck by the first steps (in Python: 3.3.4):</p>
  
  <pre><code>Python 3.3.4 (v3.3.4:7ff62415e426, Feb 10 2014, 18:12:08) [MSC v.1600 32 bit (Intel)] on win32
  Type "copyright", "credits" or "license()" for more information.
  
  &gt;&gt;&gt; import hashlib
  
  &gt;&gt;&gt; print hashlib.sha256("I am Satoshi Nakamoto").hexdigest()
  File "&lt;stdin&gt;", line 1
      print hashlib.sha256("I am Satoshi Nakamoto").hexdigest()
                  ^
  SyntaxError: invalid syntax
  </code></pre>
  
  <p>What did I do wrong?</p>