1.安装相应的编译工具
在root用户下(不要用普通用户,麻烦),全部复制粘贴过去,一次性安装即可.
yum -y groupinstall “Development tools”
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
yum install -y libffi-devel zlib1g-dev
yum install zlib* -y
2.下载安装包
wget wget https://www.python.org/ftp/python/3.7.2/Python-3.7.2.tar.xz
3.解压
tar -xvJf Python-3.7.2.tar.xz
4.创建编译安装目录
mkdir /usr/local/python3
5.安装
cd Python-3.7.2
./configure –prefix=/usr/local/python3 –enable-optimizations –with-ssl
#第一个指定安装的路径,不指定的话,安装过程中可能软件所需要的文件复制到其他不同目录,删除软件很不方便,复制软件也不方便.
#第二个可以提高python10%-20%代码运行速度.
#第三个是为了安装pip需要用到ssl,后面报错会有提到.
make && make install
what-does-enable-optimizations-do-while-compiling-python
6.创建软链接
ln -s /usr/local/python3/bin/python3 /usr/local/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip3
7.验证是否成功
python3 -V
pip3 -V
8.报错处理
错误1
zipimport.ZipImportError: can’t decompress data; zlib not available Makefile:1099: recipe for target ‘install’ failed make: *** [install] Error 1
需要安装依赖
yum -y install zlib1g-dev
错误2
ModuleNotFoundError: No module named ‘_ctypes’
需要安装依赖
yum -y install libffi-devel
这两个错误需要的依赖已经添加到一开始的依赖安装上去了
