How to setup python3 version on mac?

Question

I have installed python 3.8.0 via pyenv .

pyenv which python
/Users/myname/.pyenv/versions/3.8.0/bin/python

If I run python3 I get

python3           
Python 3.6.8rc1 (v3.6.8rc1:cc3e73212a, Dec 11 2018, 17:37:34) 
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.

If I check

which python3
/Library/Frameworks/Python.framework/Versions/3.6/bin/python3

How can I set the 3.8.0 version as default?

Answer 1

By typing pyenv global 3.8

You check get the list of options by typing pyenv -h

Answer 2

If you have multiple versions of python installed, you can do python -3.x -m...

Also check if the env is active before opening it.