Linux 安装 Python3.7

安装依赖包

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 gcc

下载Python3.7源码

• 下载
  wget ftp://yangyang.host/Python-3.7.1.tar.xz
• 解压
  tar -xvf Python-3.7.1.tar.xz && cd Python-3.7.1/

执行配置文件，编译，编译安装

• ./configure --prefix=/usr/local/python37
• make && make install

建立软连接

• mv /usr/bin/python /usr/bin/python_bak
• ln -s /usr/local/python37/bin/python3.7 /usr/bin/python
• ln -s /usr/local/python37/bin/pip3.7 /usr/bin/pip

测试Python是否可用

• python

Python 3.7.1 (default, Jan 14 2019, 10:30:01) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-36)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> print("hello world!")
hello world!
>>> exit()

• pip --version
  pip 10.0.1 from /usr/local/python37/lib/python3.7/site-packages/pip (python 3.7)

修改yum调用的python

修改第一行为以下

• vi /usr/bin/yum

#!/usr/bin/python2.7

• vi /usr/libexec/urlgrabber-ext-down

#! /usr/bin/python2.7

大功告成，可以使用了。