Python2.7安裝教程，python2.7教程

Python2.7安裝教程，python2.7教程

  作者：zhanhailiang 日期：2014-11-16

[root@~/software]# yum install bzip*[root@~/software]# wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tgz[root@~/software]# tar zxvf Python-2.7.3.tgz[root@~/software]# cd Python-2.7.3[root@~/software/Python-2.7.3]# ./configure[root@~/software/Python-2.7.3]# make && make install[root@~/software]# cd /usr/local/bin/[root@/usr/local/bin]# ls -al python*lrwxrwxrwx 1 root root       7 Nov 16 18:24 python -> python2lrwxrwxrwx 1 root root       9 Nov 16 18:24 python2 -> python2.7-rwxr-xr-x 1 root root 6162217 Nov 16 18:23 python2.7-rwxr-xr-x 1 root root    1624 Nov 16 18:24 python2.7-configlrwxrwxrwx 1 root root      16 Nov 16 18:24 python2-config -> python2.7-configlrwxrwxrwx 1 root root      14 Nov 16 18:24 python-config -> python2-config[root@/usr/local/bin]# /usr/local/bin/python -VPython 2.7.3

如此安裝就完成了。但是因為部分軟體，如node.js依賴python2.7，此時需要修改系統路徑python命令指向2.7.3版本：

[root@/usr/local/bin]# cp /usr/bin/python /usr/bin/python.bak.2014.11.16[root@/usr/local/bin]# rm /usr/bin/python[root@/usr/local/bin]# ln -s /usr/local/bin/python2.7 /usr/bin/python

如此，如果遇到yum出問題，如下“There was a problem importing one of the Python modules”：

[root@~/software/Python-2.7.3]# yum search bzipThere was a problem importing one of the Python modulesrequired to run yum. The error leading to this problem was:    No module named yum Please install a package which provides this module, orverify that the module is installed correctly. It's possible that the above module doesn't match thecurrent version of Python, which is:2.7.3 (default, Nov 16 2014, 18:22:57) [GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] If you cannot solve this problem yourself, please go to the yum faq at:  http://yum.baseurl.org/wiki/Faq

這是因為yum依賴老版本的python，可以按如下操作修複：

[root@~/software/Python-2.7.3]# vim /usr/bin/yum

修改第一行命令列，將python指向指定版本就行了：

  1 #!/usr/bin/python2.6  2 import sys  3 try:  4     import yum

參考文章：http://www.tomtalk.net/wiki/Python