Centos7 安装pyhton3.7.4

前期安装包

sudo yum -y update

sudo yum list kernel -y

sudo yum update -y kernel

sudo yum -y groupinstall "Development tools"

sudo 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

sudo yum -y install libffi-devel

安装3.7

1. wget https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tgz

2. tar -zxvf Python-3.7.4.tgz

3. cd Python-3.7.4

4. ./configure

5. make

6. make test

7. sudo make install

8. 测试，输入python3.7

设置默认切换

 sudo update-alternatives --install /usr/bin/python python /usr/bin/python2 100

sudo update-alternatives --install /usr/bin/python python /usr/local/bin/python3 200

切换命令：sudo update-alternatives --config python