一、安装Python2.7
1、下载
可从 http://www.python.org/进行下载
#wget http://www.python.org/ftp/python/
2、解压
#tar jxvf Python-2.7.6.tar.bz2
3.安装：
#cd Python-2.7.6
#./configure --prefix=/usr/local/Python2.7 --enable-shared
#make
#make install
当出现 libpython2.7.so.1.0的错误时：
# ./python
./python: error while loading shared libraries: libpython2.7.so.1.0: cannot open shared object file: No such file or directory
# /usr/local/Python2.7/bin/python2.7
/usr/local/Python2.7/bin/python2.7:
error while loading shared libraries: libpython2.7.so.1.0: cannot open
shared object file: No such file or directory
libpython2.7.so.1.0的错误时的 解决办法：
#vi /etc/ld.so.conf 添加/usr/local/Python2.7/lib
#/sbin/ldconfig
#/sbin/ldconfig -v
4.使用新安装的python:
#mv /usr/bin/python /usr/bin/python_old
#ln -s /usr/local/Python2.7/bin/python2.7 /usr/bin/python
# python
Python 2.7.2 (default, Dec 29 2013, 13:29:56)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
二、安装 MySQLdb for python
# unzip MySQLdb-python.zip
# cd MySQLdb1-master/
# which mysql_config
/usr/local/mysql/bin/mysql_config
# vim site.cfg 修改如下：
mysql_config = /usr/local/mysql/bin/mysql_config
# python setup.py build
# python setup.py install
常见错误解决：
1).如果编译python出现如下问题
/usr/bin/ld: cannot find -lpython2.7
collect2: ld returned 1 exit status
error: command 'gcc' failed with exit status 1
请按如下步骤处理：
A.检查并安装python-devel包
# yum -y install python-devel
B.将libpython2.7.so库文件建立软连接到/usr/lib下
32位服务器下执行
# ln -s /usr/local/Python2.7/lib/libpython2.7.so /usr/lib/libpython2.7.so
64位服务器下执行
# ln -s /usr/local/Python2.7/lib/libpython2.7.so /usr/lib64/libpython2.7.so
C.检查下/etc/ld.so.conf是否包含/usr/local/Python2.7/lib
#vi /etc/ld.so.conf 添加/usr/local/Python2.7/lib
#/sbin/ldconfig
2).如果python升级到2.7以后出现yum无法使用的情况，错误为No module named yum，请按照如下步骤处理，将yum使用的python版本改为旧版本：
打开yum执行文件
# vim /usr/bin/yum
将第一行 #!/usr/bin/python 修改为备份的原python版本即可，如下：
#!/usr/bin/python_old
