title: Could not find a version that satisfies the requirement Flask
body: <p><a href="https://i.stack.imgur.com/K2gR4.jpg" rel="nofollow noreferrer">Could not find a version that satisfies the requirement Flask</a>
  pip install -U Flask</p>
  
  <p>Collecting Flask
    Could not fetch URL <a href="https://pypi.python.org/simple/flask/" rel="nofollow noreferrer">https://pypi.python.org/simple/flask/</a>: There was a problem confirming the ssl certificate: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:590) - skipping</p>
  
  <p>Could not find a version that satisfies the requirement Flask (from versions: )</p>
  
  <p>No matching distribution found for Flask</p>