Ubuntu16.04安装Python3

python3.7 源码下载：

https://www.python.org/downloads/release/Python-370/

解压源码：

tar -zxvf Python-3.7.0.tgz -C ~

安装源码编译所需的各种依赖库：（ubuntu16.04环境下）

sudo apt-get install zlib1g-dev libbz2-dev libssl-dev libncurses5-dev libsqlite3-dev libreadline-dev tk-dev libgdbm-dev libdb-dev libpcap-dev xz-utils libexpat1-dev liblzma-dev libffi-dev libc6-dev

配置安装位置 配置优化：

./configure --prefix=/opt/python3.7 --enable-optimizations

编译：

make -j 4

安装：

sudo make install

也或者编译、安装一起：

sudo make && make install