在Windows上安装Python+MySQL 的常见问题及解决方法 (转)

验证是否已经安装了MySQLdb：

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d:\usr\local\Python25>python
Python 2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit (Intel)] onwin32
Type "help", "copyright", "credits" or "license" for more information.
>>> import MySQLdb
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named MySQLdb
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如果有类似于上面的"No module named MySQLdb"，表明MySQLdb尚未安装或安装的不成功！

MySQL 版本：5.0.67
下载地址：http://dev.mysql.com/downloads/mysql/5.0.html#downloads
下载exe文件并安装

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Python 版本：2.5
下载地址：http://www.python.org/download/releases/2.5.4/
下载msi文件并安装

MySQLdb版本： MySQLdb Windows binary for Python 2.5
下载地址：http://biohackers.net/wikiattach/Python2(2e)5/attachments/MySQL-python.exe-1.2.1_p2.win32-py2.5.exe
参见：http://forums.mysql.com/read.php?50,129618,140611#msg-140611

常见问题：
1.无法定位程序输入点 mysql_server_init 于动态链接库 LIBMYSQL.dll 上。
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D:\usr\local\Python25>python
Python 2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 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\Python25\Lib\site-packages\MySQLdb\__init__.py", line 19, in <module>
    import _mysql
ImportError: DLL load failed: 找不到指定的程序。
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解决方法：把mysql安装目录的bin\libmySQL.dll文件复制到python安装目录的Lib\site-packages下

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Python 版本：2.6
下载地址：http://www.python.org/download/releases/2.6.1/
下载msi文件并安装

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

常见问题：
1.ImportError: DLL load failed: 找不到指定的模块。
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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: 找不到指定的模块。
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解决方法：下载libmmd.dll(附件)和libguide40.dll(附件)两个dll文件并复制到python安装目录的Lib\site-packages下。
参见：http://sourceforge.net/forum/message.php?msg_id=5613887

2.ImportError: DLL load failed: 找不到指定的模块。
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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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解决方法：
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,
参见：http://sourceforge.net/forum/message.php?msg_id=5808948