centos 编译 python3.7

转：https://www.cnblogs.com/kimyeee/p/7250560.html

1. 安装依赖环境

　　# yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libffi-devel

2.下载Python3
　　https://www.python.org/downloads/

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

3.安装python3
　　创建目录：

# mkdir -p /usr/local/python3

# tar -zxvf Python-3.7.0.tgz

4.进入解压后的目录，编译安装。

# cd Python-3.7.0
# ./configure --prefix=/usr/local/python3

　　make

# make

　　make install

make install    或者 make && make install

5.建立python3的软链

# ln -s /usr/local/python3/bin/python3 /usr/bin/python3

6.并将/usr/local/python3/bin加入PATH

# vim ~/.bash_profile
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/bin:/usr/local/python3/bin
export PATH

　　按ESC，输入:wq回车退出。

　　修改完记得执行行下面的命令，让上一步的修改生效：

# source ~/.bash_profile

　　检查Python3及pip3是否正常可用：

# python3 -V
Python 3.7.0
# pip3 -V
pip 10.0.1 from /usr/local/python3/lib/python3.7/site-packages/pip (python 3.7)

7.不行的话在创建一下pip3的软链接(我也不清楚这一步有什么用)

# ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3