下载python3安装包

wget -c https://www.python.org/ftp/python/3.7.3/Python-3.7.3.tgz

安装linux依赖

yum install libffi-devel openssl openssl-devel sqlite-devel bzip2-devel -y

在源码安装文件中编辑文件Modules/Setup.dist

安装openssl

在源码安装文件中编辑文件Modules/Setup.dist

去掉如下注释

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#SSL=/usr/local/ssl
_ssl _ssl.c \
 -DUSE_SSL -I$(SSL)/include -I$(SSL)/include/openssl \
 -L$(SSL)/lib -lssl -lcrypto

编译安装

mkdir /usr/python3

cd Python-3.7.3

./configure –prefix=/usr/python3 –enable-loadable-sqlite-extensions && make && make install

ln -s /usr/python3/bin/python3 /usr/bin/python3

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