linux源碼安裝python3.7

1. 安裝基本環境
   yum更新 yum update
   環境安裝 yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel libffi-devel gcc make python-devel

2. 下載python3.7版本源碼包 https://www.python.org/downloads/source/

3. 解壓並進入解壓目錄 
   tar -zxvf Python-3.7.3.tgz
cd Python-3.7.3/

創建python安裝目錄 sudo mkdir /usr/local/Python3

1. 配置安裝目錄並編譯安裝
   ./configure --prefix=/usr/local/Python3
make 
sudo make install

2. 創建python3.7的軟鏈接  
   sudo ln -s /usr/local/Python3/bin/python3 /usr/bin/python3.7

3. 添加環境變量 a.打開配置文件 sudo vim /etc/profile
   b.在文件最後添加下面一行python3.7環境路徑：
   export PATH=/usr/local/Python3/bin:$PATH
   c.保存後使文件生效 source /etc/profile
   以上操作完成後，python3.7安裝完成。