Centos安装python3.7

Centos安装python3.7

一、切换yum

# 切换aliyun
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
cd /etc/yum.repos.d/
# centos6.x
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

# centos7.x
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

yum clean all
yum makecache
yum install tree -y
yum update -y

二、安装依赖包

yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make libffi-devel

yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel zlib* libffi-devel readline-devel tk-devel 

升级openssl

wget https://www.openssl.org/source/openssl-1.1.1a.tar.gz
tar -zxvf openssl-1.1.1a.tar.gz
cd openssl-1.1.1a

./config --prefix=/usr/local/openssl no-zlib #不需要zlib
make
make install

mv /usr/bin/openssl /usr/bin/openssl.bak
mv /usr/include/openssl/ /usr/include/openssl.bak

ln -s /usr/local/openssl/include/openssl /usr/include/openssl
ln -s /usr/local/openssl/lib/libssl.so.1.1 /usr/local/lib64/libssl.so
ln -s /usr/local/openssl/bin/openssl /usr/bin/openssl

## 写入openssl库文件的搜索路径
echo "/usr/local/openssl/lib" >> /etc/ld.so.conf
## 使修改后的/etc/ld.so.conf生效
ldconfig -v


openssl version


ln -s /usr/local/openssl/lib/libssl.so.1.1 /usr/lib64/libssl.so.1.1
ln -s /usr/local/openssl/lib/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1

三、安装python3.7

#安装Python3.7.0，依次执行下列代码即可
wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tgz
tar -zxvf Python-3.7.0.tgz
cd Python-3.7.0
./configure --with-openssl=/usr/local/openssl

make&&make install

四、配置环境变量（python和pip的）

mv /usr/bin/python /usr/bin/python26
ln -s /usr/local/bin/python3 /usr/bin/python
mv /usr/bin/pip /usr/bin/pip26
ln -s /usr/local/bin/pip3 /usr/bin/pip


# 修改 /usr/bin/yum
vim /usr/bin/yum
#!/usr/bin/python
改为:
#!/usr/bin/python26