title: Install of QGIS 3.2 in OSX - Python 2.7 existing won't let me
body: <p>so I am trying to install QGIS on my Mac.  I've used this guide here:</p>
  
  <p><a href="https://www.gislounge.com/installing-qgis-on-the-mac/" rel="nofollow noreferrer">https://www.gislounge.com/installing-qgis-on-the-mac/</a></p>
  
  <p>My QGIS install came from here:
  <a href="https://www.qgis.org/en/site/forusers/download.html" rel="nofollow noreferrer">https://www.qgis.org/en/site/forusers/download.html</a></p>
  
  <p>I get as far along the steps as installing the QGIS 3.pkg but the installation refuses at this point saying it needs Python 3.6 or up.</p>
  
  <p>I have 3.7 installed in fact as per the steps in the guide.  However I also have 2.7 installed - this I understand comes as standard with OSX.</p>
  
  <p>What can I do to get around this?  I don't want to mess with native OSX install and break anything!</p>
  
  <p>I'm on OSX 10.13.6</p>
  
  <p>With thanks!</p>