python3 安装

1. 方案一: python3.8安装

1.1 下载安装包并解压缩

cd /data
wget http://cdn.npm.taobao.org/dist/python/3.8.4/Python-3.8.4.tgz
tar -zxvf Python-3.8.4.tgz

1.2 安装gcc等基础包

yum install -y gcc
yum install -y zlib*
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 libxslt-devel libsasl2-dev libsasl2-2 libsasl2-modules-gssapi-mit gcc-c++
yum -y install cyrus-sasl-devel cyrus-sasl-gssapi cyrus-sasl-md5 cyrus-sasl-plain

1.3 编译python包

cd /data/Python-3.8.4/
./configure --prefix=/usr/local/python3 --with-ssl
make
make install

1.4 进行软链接

rm -fr /usr/bin/python3 /usr/bin/pip3 
ln -s /usr/local/python3/bin/python3 /usr/bin/python3 
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3