title: Cassandra 3.11.3 and cqlsh not support python 3.6 and 3.7?
body: <p>I have installed <em>Python 3.6 or 3.7</em> with <em>Cassandra 3.11.3</em>.<br>
  But it does not supporte <code>cqlsh</code>, it only supports the <em>Python 2.7</em> version.<br>
  This is the error message:</p>
  
  <pre><code>\apache-cassandra-3.11.3\bin\\cqlsh.py", line 146  
      except ImportError, e:  
                        ^  
  SyntaxError: invalid syntax  
  </code></pre>
  
  <p>What may be the problem?</p>