Ubuntu 16.04에서 파이썬 3.5.2 -> 3.7.0으로 업그레이드하기

# 출처: https://serverfault.com/questions/918335/best-way-to-run-python-3-7-on-ubuntu-16-04-which-comes-with-python-3-5
# Install requirements
sudo apt-get install -y build-essential
sudo apt-get install -y checkinstall
sudo apt-get install -y libreadline-gplv2-dev
sudo apt-get install -y libncursesw5-dev
sudo apt-get install -y libssl-dev
sudo apt-get install -y libsqlite3-dev
sudo apt-get install -y tk-dev
sudo apt-get install -y libgdbm-dev
sudo apt-get install -y libc6-dev
sudo apt-get install -y libbz2-dev
sudo apt-get install -y zlib1g-dev
sudo apt-get install -y openssl
sudo apt-get install -y libffi-dev
sudo apt-get install -y python3-dev
sudo apt-get install -y python3-setuptools
sudo apt-get install -y wget

# Prepare to build
mkdir /tmp/Python37
cd /tmp/Python37

# Pull down Python 3.7, build, and install
wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz
tar xvf Python-3.7.0.tar.xz
cd /tmp/Python37/Python-3.7.0
./configure
sudo make altinstall

# 참고: https://stackoverflow.com/questions/41986507/unable-to-set-default-python-version-to-python3-in-ubuntu
update-alternatives --install /usr/bin/python3 python /usr/local/bin/python3.7 10

다 하고 나서 다시 버전을 확인하면...

$ python3 -V

Python 3.7.0

휴..