py3.8 install script

install.sh

+#!/bin/bash
+
+# python3.8 安装脚本 仅作参考
+
+# 如果 yum源有问题 ，可以使用华为yum源 下面不是必做的  wget 可以换为 curl
+#cp -a /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
+#wget -O /etc/yum.repos.d/CentOS-Base.repo https://repo.huaweicloud.com/repository/conf/CentOS-7-anon.repo
+#yum clean all
+#yum makecache
+
+#  注意切换到正确的文件路径下
+
+yum install -y gcc openssl-devel bzip2-devel libffi-devel wget
+
+wget https://www.python.org/ftp/python/3.8.0/Python-3.8.0.tgz
+
+tar -zxvf Python-3.8.0.tgz
+
+cd Python-3.8.0
+
+mkdir -p /usr/local/python3.8
+
+./configure --enable-optimizations --prefix=/usr/local/python3.8
+
+make
+
+#注意 不要使用 make install 否则会覆盖已存在的python 版本，导致错误
+make altinstall
+
+ln -s /usr/local/python3.8/bin/python3.8  /usr/bin/python3.8
+ln -s /usr/local/python3.8/bin/pip3.8     /usr/bin/pip3.8
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