Centos上安装python3环境的方法

查看Centos版本命令

cat /etc/redhat-release

Centos一般带有python2.6

Python -V 查看版本号

安装python前的库环境

yum install gcc patch libffi-devel python-devel  zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel -y

yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel readline-devel.x86_64 -y

下载python 源码包

wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz

解压 配置  编译

tar zxvf Python-3.6.5.tgz

cd Python-3.6.5

./configure --prefix=/usr/local/python3   # 应该是制定安装路径吧

make && make install

设置软连接

软连接意思和windows上发送桌面快捷方式有点像

ln -s /usr/local/python3/bin/python3.6 /usr/local/bin/python3

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

查看python3版本以及pip3版本

python3

Pip3 -V

更新pip3版本

pip3 install --upgrade pip