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
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 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
cd ~/Download 这个地方你自己的下载目录
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/python3
make
make install
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
也可用
ln -s /usr/local/bin/python3/bin/python3 /usr/bin/python
ln -s /usr/local/bin/python3/bin/pip3 /usr/bin/pip
更原生一点
设置环境(退出就无效了,永久的办法用 4 .5.)
可以将/opt/apps/python3/bin加入系统环境变量,
#echo 'export PATH=$PATH:/opt/apps/python3/bin' >> ~/.bash_profile
4. 永久添加环境变量(影响当前用户)
#vim ~/.bashrc
export PATH="/opt/STM/STLinux-2.3/devkit/sh4/bin:$PATH"
5.永久添加环境变量(影响所有用户)
#vim /etc/profile
在文档最后,添加:
export PATH="/opt/STM/STLinux-2.3/devkit/sh4/bin:$PATH"
保存,退出,然后运行:
#source /etc/profile
/opt/apps/python3/bin 为 安装路径
而我们简单的建立软链接比较方便
#ln -s /opt/apps/python3/bin/python3 /usr/bin
最后在命令行中输入python3,能够进入python3终端即成功安装
4. 永久添加环境变量(影响当前用户)
#vim ~/.bashrc
export PATH="/opt/STM/STLinux-2.3/devkit/sh4/bin:$PATH"
5.永久添加环境变量(影响所有用户)
#vim /etc/profile
在文档最后,添加:
export PATH="/opt/STM/STLinux-2.3/devkit/sh4/bin:$PATH"
保存,退出,然后运行:
#source /etc/profile
不报错则成功。