CentOS 7 Python 3.9 설치

python --version
# Python 2.7.5 (CentOS 7 기본)

yum install gcc openssl-devel bzip2-devel libffi-devel -y

wget https://www.python.org/ftp/python/3.9.5/Python-3.9.5.tgz
tar -xvf Python-3.9.5.tgz
cd Python-3.9.5/
./configure --enable-optimizations
make altinstall

which python3.9
# /usr/local/bin/python3.9

vi /root/.bashrc
# alias python="/usr/local/bin/python3.9"
source /root/.bashrc

python -V
# Python 3.9.5