如何在 CentOS 6.5 amd64 上安装 Python 3.2.2 保留其原始 Python 安装（2.6.6）？

Question

如何在 CentOS 6.5 AMD64 上安装 Python 3.2.2 保留其原始 Python 安装（2.6.6）？

Answer 1

安装 Python 3.2.2 (CentOS 6.5 AMD64)：

为了编译 Python，您必须首先安装开发工具和一些额外的库。编译 Python 并不严格需要额外的库，但没有它们，你的新 Python 解释器将毫无用处

sudo yum groupinstall "Development tools"
sudo yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel

下面是下载、编译和安装 Python 的命令

cd /usr/local/src
sudo wget http://python.org/ftp/python/3.2.2/Python-3.2.2.tar.xz --no-check-certificate
sudo tar xf Python-3.2.2.tar.xz
cd Python-3.2.2
sudo ./configure --prefix=/usr/local --enable-shared LDFLAGS="-Wl,-rpath /usr/local/lib"
sudo make && sudo make altinstall

运行上面的命令后，您新安装的 Python 解释器将作为 /usr/local/bin/python3.2 可用

/usr/local/bin/python3.2

下载并安装 Setuptools + pip

cd /usr/local/src
sudo wget https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py
sudo /usr/local/bin/python3.2 ez_setup.py
sudo /usr/local/bin/easy_install-3.2 pip

创建隔离的 Python 3.2 环境

sudo /usr/local/bin/pip3.2 install virtualenv
sudo /usr/local/bin/virtualenv /usr/local/virtenv3.2
cd /usr/local/virtenv3.2
source bin/activate
python --version # (To check version)

来源：http : //toomuchdata.com/2014/02/16/how-to-install-python-on-centos