CentOS6.5默认Python版本升

发布时间：2019-09-07 08:12:33编辑：auto阅读（2012）

    ### CentOS6.5系统自带版本是python2.6.6，升级至python2.7.5操作如下：

    # wget https://www.python.org/ftp/python/2.7.5/Python-2.7.5.tgz  //无法下载时自行官网下载

    # tar zxvf Python-2.7.5.tgz

    # cd Python2.7.5

    ./configure --prefix=/usr/local/python2.7 --enable-unicode=ucs4--enable-shared  

    # make && make install

    # cd /usr/bin/

    # ls -l |grep python

    # mv python python.back

    # ln -sv /usr/local/python2.7/bin/python/usr/bin/python

    # cp /usr/local/python2.7/lib/libpython2.7.so.1.0 /usr/local/lib

    # cd /usr/local/lib

    # ln -s libpython2.7.so.1.0 libpython2.7.so

    # whereis libpython2.7.so.1.0

    libpython2.7.so.1: /usr/local/lib/libpython2.7.so.1.0   //显示即OK

    # vim /etc/ld.so.conf.d/ python2.7.conf

    /usr/local/lib      //添加此内容

    # ldconfig

    # ldconfig -v |grep libpython*     //查看链接库信息

          libpython2.7.so.1.0 -> libpython2.7.so.1.0

          libpython2.6.so.1.0 -> libpython2.6.so.1.0

    # python -V      //测试成功显示如下

    Python 2.7.5

    ### FAQ

    （1）报错：django.core.exceptions.ImproperlyConfigured: Error loading MySQLdbmodule: libpython2.7.so.1.0: cannot open shared object file: No such file ordirectory

    解决：编译时需要添加：--enable-unicode=ucs4--enable-shared

    （2）报错：python: error while loading shared libraries: libpython2.7.so.1.0:cannot open shared object file: No such file or directory

    解决：配置可共享的动态链接库

    （3）由于默认版本是Python2.6修改成Python2.7以后yum安装软件时会报问题，例如：

    here was a problem importing one of thePython modules required to run yum. The error leading to this problem was:

    No module named yum ……It's possible that the above module doesn't match the currentversion of Python, which is:

    2.7.5

    解决：# vim /usr/bin/yum，修改第一行为：#!/usr/bin/python2.6    //即使用系统原来的python2.6版本


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