在Linux上安装Python3

在Linux上安装Python3

1. 安装依赖环境

1	# 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

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

3.安装python3

　　我个人习惯安装在/usr/local/python3（具体安装位置看个人喜好）
　　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。（编译安装前需要安装编译器yum install gcc）

1 2	# cd Python-3.6.1 # ./configure --prefix=/usr/local/python3   #/usr/local/python3为安装目录

　　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。

　　修改完记得执行行下面的命令，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)

7.不行的话尝试创建一下pip3的软链接

1	# ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3

https://www.cnblogs.com/fu-yong/p/9025489.html