Centos7下安装Python3.7

Centos7下安装Python3.7
首先安装依赖包，centos里面是-devel，如果在ubuntu下安装则要改成-dev，依赖包缺一不可，笔者曾安装python3未成功就是因为没有安装libffi-devel

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 libffi-devel

然后获取python3.7的安装包

wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0a1.tar.xz

解压

cd ~/Download

tar -xvJf Python-3.7.0a1.tar.xz

配置python3的安装目录并安装

cd Python-3.7.0a1
./configure --prefix=/usr/local/bin/python3
sudo make
sudo make install > install.log

创建软链接

ln -s /usr/local/bin/python3/bin/python3 /usr/bin/python3
ln -s /usr/local/bin/python3/bin/pip3 /usr/bin/pip3
最后在命令行中输入python3，能够进入python3终端即成功安装

卸载Python3

通过安装日志可知Python3被安装在如下目录了

/usr/local/lib/python3.6 /usr/local/bin/2to3-3.6 to /usr/local/bin/pyvenv-3.6 /usr/local/bin/pydoc3.6 /usr/local/bin/idle3.6

# 删除上述文件
rm -rf /usr/local/lib/python3.6
rm -rf /usr/local/bin/2to3-3.6 to
rm -rf /usr/local/bin/pyvenv-3.6
rm -rf /usr/local/bin/pydoc3.6
rm -rf /usr/local/bin/idle3.6

 

 

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原文：https://blog.csdn.net/elija940818/article/details/79238813