python升级

python升级：
同事的程序是在Python 2.7.3写的，在python2.6.6下运行仿佛有问题！于是考虑升级到python2.7.3 
升级步骤如下：
1：下载
wget
2：解压
tar  jxvf Python-2.7.3.tar.bz2
3：编译安装

  ./configure 
   make all
   make install
   make clean
   make distclean
   /usr/local/bin/python2.7 -V
   cd  /usr/bin/
   ls python
   mv python python2.6.6
   ln -s /usr/local/bin/python2.7 /usr/bin/python
   ll python
  [root@s4 loldbrtmp6]# python -V
Python 2.7.3

    vi /usr/bin/yum #### 用于解决系统python软链接指向python2.7版本后，yum不能正常工作的问题
将文件头部的
#!/usr/bin/python
改成
#!/usr/bin/python2.6.6

make

在运行程序过程中也遇到几个问题：##缺少python 相关模块

1：

解决方法：
下载setuptools-0.7.2.tar.gz
tar zxvf setuptools-0.7.2.tar.gz
cd setuptools
python setup.py  build
python setup.py   install


2:
 [root@s4 backupv2]#  python start.py
Traceback (most recent call last):
  File "start.py", line 2, in
    import MySQLdb
ImportError: No module named MySQLdb
解决方法：
下载MySQL-python-1.2.3.tar.gz
tar zxvf MySQL-python-1.2.3.tar.gz
cd  MySQL-python-1.2.3

[root@s4 MySQL-python-1.2.3]# cat site.cfg
[options]
# embedded: link against the embedded server library
# threadsafe: use the threadsafe client
# static: link against a static library (probably required for embedded)

embedded = False
threadsafe = True
static = False

# The path to mysql_config.
# Only use this if mysql_config is not on your PATH, or you have some weird
# setup that requires it.
mysql_config = /data/mysql/bin/mysql_config ####将注释去掉并修改为自己mysql的安装位置

# The Windows registry key for MySQL.
# This has to be set for Windows builds to work.
# Only change this if you have a different version.
registry_key = SOFTWARE\MySQL AB\MySQL Server 5.0

3:

解决方法如下：

4：ImportError: cannot import name OrderedDict

解决方法：
 tar zxvf  ordereddict-1.1.tar.gz   ##该版本和python2.6.6.不匹配！
cd ordereddict-1.1
python setup.py  build
python setup.py  install
然后测试即可正常！