title: dyld: Library not loaded: /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
body: <blockquote>
  <p>vincens@VMAC: python3
  dyld: Library not
  loaded:/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation</p>
  <p>Referenced from:
  /Library/Frameworks/Python.framework/Versions/3.6/Resources/Python.app/Contents/MacOS/Python
  Reason: image not found
  [1]    25278 abort      python3</p>
  </blockquote>
  <p>python3 env is not used when I update my Mac to the latest version. How can I solve it?</p>