标题: 在RHEL5.4上升级Python
我的RHEL 5.4 64bit预装的是python2.4.3,
cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.4 (Tikanga)
python --version
想升级到python 2.7。 打算先卸载 py 2.4, 运行 rpm -e python, 报失败, 因为有很多东西依赖py2.4。 并且运行ps -ef|grep -i py, 发现还有几个进程正在使用python. 看来是不应该卸载python2.4。
好在可以在一个机器上安装多个版本的python. 前提是不要安装在同一个目录中. 下文是将py2.7 安装在User自己目录的方法.
python 官网上只有mac/windows的installer, 要在linux上安装, 需要下载源码, 然后使用make install安装.
下面步骤主要是摘自: http://x.thexs.us/2011/06/16/install-python-2-7-opencv-2-2-on-a-linux-server-without-sudo/
下面3个文章有更详尽说明:
中文 https://www.liuze.info/?p=57
http://willsani.com/2011/03/02/centos-5-5-x86_64-install-python-2-7/
http://villaroad.com/2010/10/rolling-python-2-6-2-on-centos-5-3/
前提条件:
源码的编译和安装需要有这些程序包. yum install gcc gcc-c++.x86_64 compat-gcc-34-c++.x86_64 openssl-devel.x86_64 zlib*.x86_64
下载:
国内是无法访问python官网的download页面, 还好ftp页面没有被封. 2.7.2版的url为,
http://www.python.org/ftp/python/2.7.2/
安装:
Download and install Python 2.7
wget http://www.python.org/ftp/python/2.7.2/Python-2.7.1.tgz
tar xzvf Python-2.7.1.tgz
cd Python-2.7.1
./configure --prefix=/home/username/local --with-threads --enable-shared --enable-profiling
make
make install
安装后的配置:
In order to make it work, you also need to add the following lines to your .bashrc/.bash_profile file:
export PATH=/home/username/local/bin:$PATH
export LD_LIBRARY_PATH=/home/username/local/lib:$LD_LIBRARY_PATH
export PYTHONPATH=/home/username/local/lib/python2.7/site-packages:$PYTHONPATH
alias python='home/username/local/bin/python'
alias python24='/usr/bin/python'