Python3安装

yum -y install gcc zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libffi-devel
# ubuntu主机
sudo apt-get install -y make libffi-dev build-essential zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev libncurses5-dev libncursesw5-dev xz-utils tk-dev

wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tgz

tar -zxvf Python-3.7.0.tgz

cd Python-3.7.0
./configure --prefix=/usr/local/python3
make && make install

ln -s /usr/local/python3/bin/python3.7 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3.7 /usr/bin/pip3