Linux安装Python3.6

不要动现有的python2环境！！

1. 安装依赖环境

　　# yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel

2.下载Python3
　　https://www.python.org/downloads/

1	# wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tgz

3.安装python3

　　创建目录：

1	# mkdir -p /usr/local/python3

　　解压下载好的Python-3.x.x.tgz包(具体包名因你下载的Python具体版本不不同⽽而不不同，如：我下载的是Python3.6.1.那我这里就是Python-3.6.1.tgz)

1	# tar -zxvf Python-3.6.1.tgz

4.进入解压后的目录，编译安装。

1 2	# cd Python-3.6.1 # ./configure --prefix=/usr/local/python3

　　make

1

# make

　　make install

1	make install    或者 make && make install

5.建立python3的软链

1	# ln -s /usr/local/python3/bin/python3 /usr/bin/python3

6.并将/usr/local/python3/bin加入PATH

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# vim ~/.bash_profile # .bash_profile # Get the aliases and functions if [ -f ~/.bashrc ]; then . ~/.bashrc fi # User specific environment and startup programs PATH=$PATH:$HOME/bin:/usr/local/python3/bin export PATH

　　按ESC，输入:wq回车退出。

　　执行下面的命令，让上一步的修改生效：

1	# source ~/.bash_profile

　　检查Python3及pip3是否正常可用：

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# python3 -V Python 3.6.1 # pip3 -V pip 9.0.1 from /usr/local/python3/lib/python3.6/site-packages (python 3.6)