1. 下載安裝所需要的包，不然安裝時或者以後使用python時報錯
yum install -y libffi-devel zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel zlib gcc make libpcap-devel xz-devel gdbm-devel
2. 下載python3.7.0
wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tgz
可以到我的分享百度網盤中下載
鏈接：https://pan.baidu.com/s/1lVfP0Op_FHfeGXYT6m-phQ
提取碼：o06q
3. 解壓並安裝
tar -zxvf Python-3.7.0.tgz
cd Python-3.7.0
./configure
make&&make install
4. 配置環境變量python3 和pip3
ln -s /usr/local/bin/python3 /usr/bin/python3
ln -s /usr/local/bin/pip3 /usr/bin/pip3
5. 測試python3 和pip3
python3 -V
pip3 -V
升級到最新版pip3
pip3 install --upgrade pip