I have install python 3.6.5 (With brew) and when I execute python command in a shell, it is always python 2.7 that come.
I have executed these command see in an other post but nothing work:
Remove the third-party Python 2.7 framework
sudo rm -rf /Library/Frameworks/Python.framework/Versions/2.7
Remove the Python 2.7 applications directory
sudo rm -rf "/Applications/Python 2.7"
Remove the symbolic links in /usr/local/bin that point to this Python version see ls -l /usr/local/bin | grep '../Library/Frameworks/Python.framework/Versions/2.7' and then run the following command to remove all the links:
cd /usr/local/bin/
ls -l /usr/local/bin | grep '../Library/Frameworks/Python.framework/Versions/2.7' | awk '{print $9}' | tr -d @ | xargs rm