20) 源码编译安装python2和3版本

1- 源码编译安装python2.7版本

1.1- 下载源码包

wget https://www.python.org/ftp/python/2.7.14/Python-2.7.14.tgz

1.2- 安装依赖包

centos/redhat:

yum install -y gcc zlib zlib-devel openssl openssl-devel

ubuntu/debian:

apt-get install zlib1g-dev libbz2-dev libssl-dev libncurses5-dev  libreadline-dev tk-dev libgdbm-dev libdb-dev libpcap-dev xz-utils libexpat-dev

1.3- 解压源码包

tar -zxvf Python-2.7.14.tgz

1.4- 编译

cd Python-2.7.14
./configure --enable-optimizations --prefix=/usr/local/python2.7.14
vim Modules/Setup
默认这块是注释的，放开注释即可。这块功能是开启SSL模块，不然会出现安装完毕后，提示找不到ssl模块的错误。

修改后：

1.5- 安装

make && make install
ln -s  /usr/local/python2.7.14/bin/python2.7  /usr/bin/python2.7.14

1.6- 检查版本

python2.7.14 --version
Python 2.7.14

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2- 源码编译安装python3.7版本

2.1- 下载安装包

wget https://www.python.org/ftp/3.7.0/Python-3.7.0.tgz

2.2- 解压

tar -xvf Python-3.7.0.tgz

2.3- 安装依赖包

centos/redhat:

yum install -y gcc zlib zlib-devel openssl openssl-devel

ubuntu/debian:

apt-get install zlib1g-dev libbz2-dev libssl-dev libncurses5-dev  libreadline-dev tk-dev libgdbm-dev libdb-dev libpcap-dev xz-utils libexpat-dev

2.4- 编译

cd  /Python3.7.0
./configure --prefix=/usr/local/python/python-3.7.0

2.5- 安装

make && make install
ln -s /usr/local/python/python-3.7.0/bin/python3.7    /usr/bin/python3.7

2.6- 检查版本

python3.7.0 --version
Python 3.7.0