在Python中使用MySQL需要安裝MySQLdb，但從官方站點 http://sourceforge.net/projects/mysql-python/ 目前只能下載到只持Python2.5版的MySQLdb。本文介紹Windows下安裝MySQLdb的方法和常見問題處理。

Python2.6可以從http://www.python.org/download
下載官方的版本安裝，也可以http://www.activestate.com/activepython/下載ActivePython安裝，后者在windows下使用更加方便。

MySQLdb版本： MySQL-python-1.2.2.win32-py2.6.exe
下載地址：http://home.netimperia.com/files/misc/MySQL-python-1.2.2.win32-py2.6.exe
參見：http://sourceforge.net/forum/forum.php?thread_id=2316047&forum_id=70460

常見問題：
1.ImportError: DLL load failed: 找不到指定的模塊。
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D:\usr\local\Python26>python
Python 2.6 (r26:66721, Oct  2 2008, 11:35:03) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import MySQLdb
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "D:\usr\local\Python26\Lib\site-packages\MySQLdb\__init__.py", line 19, in <module>

    import _mysql
ImportError: DLL load failed: 找不到指定的模塊。
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解決方法：下載libmmd.dll(附件)和libguide40.dll(附件)兩個dll文件并復制到python安裝目錄的Lib\site-packages下。
參見：http://sourceforge.net/forum/message.php?msg_id=5613887

2.ImportError: DLL load failed: 找不到指定的模塊。
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D:\usr\local\Python26>python
Python 2.6 (r26:66721, Oct  2 2008, 11:35:03) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import MySQLdb
D:\usr\local\Python26\lib\site-packages\MySQLdb\__init__.py:34: DeprecationWarning: the sets module is deprecated
  from sets import ImmutableSet
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解決方法：
1) file "__init__", replace: 
from sets import ImmutableSet  
class DBAPISet(ImmutableSet):  
with  
class DBAPISet(frozenset) :
2) file "converters.py", remove: 
from sets import BaseSet, Set 
3) file "converters.py", change "Set" by "set" (IMPORTANT: only two places): 
line 48: return set([ i for i in s.split(',') if i ]) 
line 128: set: Set2Str, 
參見：http://sourceforge.net/forum/message.php?msg_id=5808948