[PYTHON] Mac OS Preferences

Bash --bach_profile: Executed only at login --bashrc: Executed every time bach starts

Python Python is not compatible between versions, so it is desirable to be able to switch between versions as needed. You can use Anaconda or pyenv for version control, but it's not recommended to have them on the same machine. The introduction method of pyenv is explained below.

pyenv --python version control tool
pip --python package management tool

pyenv A tool that makes it easy to switch between python versions.

brew install pyenv

If you write to bash, you can use the pyenv command.

echo 'eval "$(pyenv init -)"' >> ~/.bach_profile

Option list

`pyenv + <option>`	Description
install -l	Check the version that can be installed
install	Install a version
versions	Check the version installed in your environment
global	Switch python versions across machines
local	Switch the python version under the current directory

ROOT

mkdir /usr/local/root/root-6.06.02/
cd /usr/local/root/root-6.06.02/
mkdir cmake_build_python3
cd cmake_build_python3
cmake .. -Dall=ON -DPYTHON_EXECUTABLE=/usr/local/bin/python3 -Dsoversion="ON"

https://sft.its.cern.ch/jira/si/jira.issueviews:issue-html/ROOT-9492/ROOT-9492.html

ROOT6 root-6.18.04 Last used option

cmake .. -Dall=ON -DPYTHON_EXECUTABLE=/usr/local/bin/python3 -Dbuiltin_xrootd=ON

Below, the procedure until the compilation is completed --Installing CUDA Added the following to bashrc