分类: Python

CentOS7.4快速编译安装Python-3.6.3及pip

系统版本是CentOS Linux release 7.4.1708 (Core) 迷你版安装的,Python默认版本是2.7.5,升级到python3.6.3的步骤如下:

1、升级安装基础工具包

yum install sqlite-devel sqlite vim wget unzip zip xz xz-devel tar tk tk-devel lrzsz openssl openssl-devel net-tools ntpdate vixie-cron crontabs sysstat bind-utils mysql-devel libffi libffi-devel -y
yum install gcc gcc-c++ gcc-g77 zlib zlib-devel zlib* readline* gcc* make cmake autoconf automake ncurses ncurses-devel bzip2 bzip2-devel gdbm gdbm-devel python-devel -y
yum groupinstall 'development tools' -y
yum install https://centos7.iuscommunity.org/ius-release.rpm
yum update -y

2、下载、编译、安装

wget https://www.python.org/ftp/python/3.6.3/Python-3.6.3.tar.xz
mkdir /usr/local/python3
xz -d Python-3.6.3.tar.xz
tar xvf Python-3.6.3.tar
cd Python-3.6.3
./configure --prefix=/usr/local/python3 --enable-optimizations   
#--prefix 安装目录,--enable-optimizations优化参数(LTO,PGO)性能有10%左右的提升,会增加编译时间

make
make install

3、做软连接、修改yum、libexec的python版本

mv /usr/bin/python /usr/bin/python_bak   #备份
ln -s /usr/local/python3/bin/python3 /usr/bin/python  #软连接

将/usr/bin/yum和/usr/libexec/urlgrabber-ext-down及/usr/bin/yum-config-manager中第一行的 #!/usr/bin/python 改为 #!/usr/bin/python2.7保存即可正常使用yum

4、安装epel-release升级pip

yum install epel-release -y
yum install python-pip -y
pip install -U pip

至此python3.6.3安装完毕。

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