Centos7下安装python3.x

安装依赖

Ubuntu/Debian下需安装的依赖：

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1 2	sudo apt-get install -y gcc make cmake build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev xz-utils tk-dev libffi-dev liblzma-dev python-openssl

Fedora/CentOS/RHEL(aws ec2)下需安装的依赖：

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1	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

下载安装包

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https://www.python.org/ftp/python/   cd /usr/local/   wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tgz

解压、编译、安装

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解压 tar -zxvf Python-3.7.0.tgz   建立一个空文件夹，用于存放python3程序 mkdir /usr/local/python3   执行配置文件，编译，编译安装 cd Python-3.7.0 ./configure --prefix=/usr/local/python3 make && make install

创建软连接

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1 2	ln -s /usr/local/python3/bin/python3.7 /usr/bin/python3 ln -s /usr/local/python3/bin/pip3.7 /usr/bin/pip3