CentOS 7 安装 python

# 安装依赖包
yum install -y openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel
# 下载安装包
wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz
# 解压安装包
tar -xzvf Python-3.6.5.tgz
# 进入安装目录
cd Python-3.6.5
# 新建/usr/local/python3
mkdir /usr/local/python3
# 编译预处理
./configure --prefix=/usr/local/python3
# 编译并安装
make && make install

# Linux默认Python为2.7
# 建立新安装的python3.6.5的软连接
ln -s /usr/python/bin/python3 /usr/bin/python3
ln -s /usr/python/bin/pip3 /usr/bin/pip3

vim ~/.bash_profile
#
# PATH=$PATH:$HOME/bin:/opt/python3.6.5/bin  # opt需修改为自己安装的Python所在目录
# export PATH
source ~/.bash_profile

python3 --version

python --version