安装MySQLdb后，import MySQLdb出错如下：

复制代码 代码如下:
[root@lizhong MySQL-python-1.2.3]# /usr/local/bin/python2.7
Python 2.7.6 (default, Apr 10 2014, 15:45:39)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type \”help\”, \”copyright\”, \”credits\” or \”license\” for more information.
>>> import MySQLdb
/usr/local/lib/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-x86_64.egg/_mysql.py:3: UserWarning: Module _mysql was already imported from /usr/local/lib/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-x86_64.egg/_mysql.pyc, but /soft/MySQL-python-1.2.3 is being added to sys.path
Traceback (most recent call last):
  File \”\”, line 1, in
  File \”MySQLdb/__init__.py\”, line 19, in
    import _mysql
  File \”build/bdist.linux-x86_64/egg/_mysql.py\”, line 7, in
  File \”build/bdist.linux-x86_64/egg/_mysql.py\”, line 6, in __bootstrap__
ImportError: libmysqlclient.so.18: cannot open shared object file: No such file or directory

根据最后提示，应该是找不着一个交libmysqlclient.so.18的文件，于是到mysql安装目录里找到这个文件并且做一个软连接到/usr/lib
复制代码 代码如下:
ln -s /usr/local/mysql/lib/libmysqlclient.so.18 /usr/lib/libmysqlclient.so.18

如果是64系统则：
复制代码 代码如下:
ln -s /usr/local/mysql/lib/libmysqlclient.so.18 /usr/lib64/libmysqlclient.so.18

再次import MySQLdb就正常了：
复制代码 代码如下:
[root@lizhong MySQL-python-1.2.3]# /usr/local/bin/python2.7
Python 2.7.6 (default, Apr 10 2014, 15:45:39)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type \”help\”, \”copyright\”, \”credits\” or \”license\” for more information.
>>> import MySQLdb
>>>