Centos7下源码安装Python3 及shell 脚本自动安装Python3的教程

yum -y install gcc gcc-c++ zlib-devel bzip2-devel openssl-devel sqlite-devel readline-devel libffi-devel wget

tar -xf Python-3.7.6.tar.xz

cd Python-3.7.6

readline readline.c -lreadline -ltermcap

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

./configure --enable-shared

make -j 2 && make install
# -j 当前主机的 cpu 核心数

vi /etc/profile.d/python3_lib.sh 添加如下内容
# python3.7 共享库目录
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

$ python3
Python 3.7.6 (default, Dec 25 2019, 03:22:21)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> exit()

mkdir ~/.pip
vi ~/.pip/pip.conf

yum groupinstall -y "Development tools"
#开发工具包
touch /mnt/inst_pyth.log
positio_pyth=/mnt/inst_pyth.log
echo "开始安装依赖包-----"
yum -y install gcc gcc-c++ zlib-devel bzip2-devel openssl-devel sqlite-devel readline-devel libffi-devel wget tar >> $positio_pyth
#依赖包
rpm -q gcc gcc-c++ zlib-devel bzip2-devel openssl-devel sqlite-devel readline-devel libffi-devel wget tar
 >> $positio_pyth
if [ $? -ne 0 ];then
 exit
fi
echo "开始下载python安装包,请耐心等待------"
wget https://www.python.org/ftp/python/3.7.6/Python-3.7.6.tar.xz -O /usr/local/Python-3.7.6.tar.xz
#下载安装包
if [ $? -ne 0 ];then
 exit
fi
cd /usr/local/
tar xf Python-3.7.6.tar.xz >> $positio_pyth
cd Python-3.7.6
sed -ri 's/^#(readline)/\1/' /usr/local/Python-3.7.6/Modules/Setup.dist
sed -ri 's/^#(SSL=)/\1/' /usr/local/Python-3.7.6/Modules/Setup.dist
sed -ri 's/^#(_ssl)/\1/' /usr/local/Python-3.7.6/Modules/Setup.dist
sed -ri 's/^#([ \t]*-DUSE)/\1/' /usr/local/Python-3.7.6/Modules/Setup.dist
sed -ri 's/^#([ \t]*-L\$\(SSL\))/\1/' /usr/local/Python-3.7.6/Modules/Setup.dist
# 到配置文件里打开这几行的注释
./configure --enable-sharde
a=`cat /proc/cpuinfo|awk '/cpu cores/ {print $NF}'`
make -j $a && make install >> $positio_pyth
#j 指定cpu核数
touch /etc/profile.d/python3_lib.sh
echo "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib" > /etc/profile.d/python3_lib.sh
touch /etc/ld.so.conf.d/python3.conf
echo "/usr/local/lib" > /etc/ld.so.conf.d/python3.conf
ldconfig
#使添加的内容生效
source /etc/profile
#生效环境变量
pip3 -V
if [ $? -eq 0 ];then
 echo "安装成功"
else
 echo "安装失败"
fi