1. 设置语言：中文

vi /etc/locale.conf

LANG=zh_CN.UTF8

2.更新pip（不知道有没有用）

pip install --upgrade pip

3.更新源

yum -y install zlib* bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel gcc make

4.下载python

wget https://www.python.org/ftp/python/3.9.2/Python-3.9.2.tgz  

5.解压

tar zxvf Python-3.9.2.tgz

6.指定安装位置

Python-3.9.2/configure --prefix=/usr/local/python3.9

7.编译并安装

make && make install

8.配置映射   

ln -s /usr/local/python3.9/bin/python3.9 /usr/bin/python3

ln -s /usr/local/python3.9/bin/pip3.6 /usr/bin/pip3

9.修改之前的python映射

ln -snf /usr/bin/python3 /usr/bin/python

10. 修改yum调用Python2

/usr/bin/yum

#!/usr/bin/python2

11. 修改urlgrabber-ext-down调用Python2

vi /usr/libexec/urlgrabber-ext-down

pip3 install itchat

pip3 install PyExecJS

pip3 install bs4

yum install xdg-utils