安装Python3.5,,准备编译环境1231


准备编译环境

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123yumgroupinstall‘Developmenttools‘yuminstallyuminstallzlib-develbzip2-developenssl-develncurses-develsqlite-develreadline-develtk-develgdbm-develdb4-devellibpcap-develxz-devel

2. 下载安装包

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12wgethttps://www.python.org/ftp/python/3.5.0/Python-3.5.0.tgz


3. 编译

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12345tarxfPython-3.5.0.tgzcdPython-3.5.0./configure--prefix=/usr/local/python3makemakeinstall

4. 设置环境变量

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1echo‘exportPATH=#PATH:/usr/local/python3/bin‘>>~/.bashrc

5. 替换python2

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12rm/usr/bin/pythonln-sv/usr/local/bin/python3.5/usr/bin/python

(这样做的目的是在系统任意目录下敲入python调用的都是python3.5的命令,而非系统默认的2.6.6。但是这样会导致依赖python2.6的yum不能使用因此还要修改yum配置)

6. 更新yum配置

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1ll/usr/bin|greppython

(这里的/usr/bin目录下面包含以下几个文件的(ll | grep python),其中有个python2.6,只需要指定yum配置的python指向这里)

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12vim/usr/bin/yum

通过vim修改yum配置,#!/usr/bin/python改为#!/usr/bin/python2.6,保存退出,完成python3的安装

7.运行python

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安装Python3.5

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