I am try to upgrade my Python version on my macOS Catalina 10.15.1 by install PYENV and PYPIP, and set global and local to version 3.8.0. but still when I try to python version it shows the python version which built into the MacOS operating system. which part is missing? $ pyenv -v pyenv 1.2.14 $ pypip -v zsh: command not found: pypip $ pyenv versions system * 3.8.0 (set by /Users/aj/.python-version) $ pyenv global 3.8.0 $ pyenv local 3.8.0 $ python -V Python 2.7.16 Continue reading...