Centos升级Python

编辑本博客

官网源码下载：https://www.python.org/downloads/source/

编译安装：

先安装:

yum -y install zlib zlib-devel

yum -y install gcc

yum install libffi-devel -y
yum -y install bzip2 bzip2-devel
yum -y install ncurses ncurses-devel
yum -y install readline readline-devel
yum -y install openssl openssl-devel
yum -y install openssl-static
yum -y install xz lzma xz-devel
yum -y install sqlite sqlite-devel
yum -y install gdbm gdbm-devel
yum -y install tk tk-devel

yum install bzip2-devel ncurses-devel gdbm-devel openssl-devel readline-devel lzma xz-devel zlib-devel sqlite-devel

 

配置后安装：

./configure --prefix=/usr/local/python3.4 --enable-shared --enable-loadable-sqlite-extensions

修改yum文件，有python改成python2

yum命令：

vim /usr/bin/yum

#!/usr/bin/python2

yum命令中下载文件：

vi /usr/libexec/urlgrabber-ext-down

#! /usr/bin/python2

对原python更名：

mv /usr/bin/python /usr/bin/python.old

建立新的连接文件

ln -s /usr/local/python3/bin/python3 /usr/bin/python

 ERROR：

./python3: error while loading shared libraries: libpython3.4m.so.1.0: cannot open shared object file: No such file or directory

复制源码下的libpython3.4m.a，libpython3.4m.so，libpython3.4m.so.1.0，libpython3.so 到/usr/lib目录下

load刚复制的模块：/sbin/ldconfig

创建软连接：ln -s /usr/local/python3.4/bin/python3 /usr/bin/python

 

Ubuntu编译安装软件提示：编译器没法建立可执行文件，卸载到gcc和g++后从新安装

sudo apt-get install build-essential