[SOLVED] pyenv install 3.8.0b4 on macOS Mojave

Issue

I am trying to install the latest beta version of the new Python 3.8. My laptop is running macOS Mojave. I am following the tutorial on RealPython: https://realpython.com/intro-to-pyenv/

and have skimmed through similar questions, e.g. pyenv 3.6.5 BUILD FAILED macOS Mojave 10.14.5

First I run the commands:

brew install openssl readline sqlite3 xz zlib
sudo installer -pkg /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg -target /
curl https://pyenv.run | bash
export PATH="$HOME/.pyenv/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"
$ exec "$SHELL"
pyenv install --list | grep " 3\.[8]"

Which run successfully and shows that Python 3.8.0b4 is the latest release, which I wish to install;

When attempting to install with:

pyenv install 3.8.0b4

The result reads:

-bash: pyenv: command not found

pyenv is installed however. Any idea about why the command isn't found?

(See the BASH terminal below).

Solution

Following PyEnv BUILD FAILED installing Python on MacOS

The below command successfully installed Python 3.8.0b4:

SDKROOT=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk MACOSX_DEPLOYMENT_TARGET=10.14 pyenv install 3.8.0b4

See output below:

Answered By - Gustav Rasmussen