帮助在 Mac OS X 下安装 MySQLdb for Python答案

【问题标题】：Help installing MySQLdb for Python under Mac OS X帮助在 Mac OS X 下安装 MySQLdb for Python
【发布时间】：2011-08-24 14:49:44
【问题描述】：

我知道这个问题已经被问过好几次了，但是经过几个小时的尝试，没有办法让它工作。

我已经从 dmg 文件和 MySQL-python-1.2.3 安装了 MySQL 32bits。

我关注了this steps，但是当我运行python setup.py build时，出现了这些错误：

running build
running build_py
copying MySQLdb/release.py -> build/lib.macosx-10.6-fat-2.6/MySQLdb
running build_ext
building '_mysql' extension
gcc-4.2 -fno-strict-aliasing -fno-common -dynamic -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -pipe -Dversion_info=(1,2,3,'final',0) -D__version__=1.2.3 -I/usr/local/mysql-5.5.12-osx10.6-x86/include -I/System/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6 -c _mysql.c -o build/temp.macosx-10.6-fat-2.6/_mysql.o -Os -g -fno-common -fno-strict-aliasing -arch i386
In file included from _mysql.c:36:
/usr/local/mysql-5.5.12-osx10.6-x86/include/my_config.h:326:1: warning: "SIZEOF_SIZE_T" redefined
In file included from /System/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6/Python.h:9,
                 from pymemcompat.h:10,
                 from _mysql.c:29:
/System/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6/pymacconfig.h:39:1: warning: this is the location of the previous definition
In file included from _mysql.c:36:
/usr/local/mysql-5.5.12-osx10.6-x86/include/my_config.h:419:1: warning: "HAVE_WCSCOLL" redefined
In file included from /System/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6/Python.h:8,
                 from pymemcompat.h:10,
                 from _mysql.c:29:
/System/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6/pyconfig.h:803:1: warning: this is the location of the previous definition
_mysql.c:76: error: expected specifier-qualifier-list before ‘MYSQL’
_mysql.c:90: error: expected specifier-qualifier-list before ‘MYSQL_RES’
_mysql.c: In function ‘_mysql_Exception’:
_mysql.c:120: warning: implicit declaration of function ‘mysql_errno’
_mysql.c:120: error: ‘_mysql_ConnectionObject’ has no member named ‘connection’
_mysql.c:132: error: ‘ER_DB_CREATE_EXISTS’ undeclared (first use in this function)
_mysql.c:132: error: (Each undeclared identifier is reported only once

......

如果您能提供任何帮助，我将不胜感激。谢谢！

【问题讨论】：

编译器似乎找不到 MySQL 头文件。您安装的 DMG 中是否包含头文件？如果是这样，您可以通过设置 CFLAGS 环境变量将编译器指向正确的方向。
它包含一些 pkg 文件来安装它...
How to install MySQLdb (Python data access library to MySQL) on Mac OS X?的可能重复

标签： python mysql macos mysql-python

【解决方案1】：

试试macports:

$ port search python | grep mysql
py-mysql @1.2.2 (python, devel, databases)
Python interface to mysql
py25-mysql @1.2.2 (python, devel, databases)
Python interface to mysql
py26-mysql @1.2.3 (python, devel, databases)
py27-mysql @1.2.2 (python, devel, databases)
Python interface to mysql

【讨论】：

嘿，谢谢！不过，我不知道 100% 我刚刚做了什么：D 如果我从 Python CLI 运行“import MySQLdb”，它不会找到它。如何检查它是否正确安装？
该命令不会安装它。不过，sudo port install py-mysql（或您想要的任何一个）会。 port list | grep py-mysql 会显示它是否已安装。
是的，我现在知道了，我正在安装，看看效果如何。谢谢。

【解决方案2】：

如果你不想在你的 mac 上处理包管理器的问题，我在本安装指南中详细介绍了我的经验：http://alexandersimoes.com/journal/2011/03/04/install-mysqldb-on-mac-osx-snow-leopard/

【讨论】：

这非常有帮助。谢谢。

【解决方案3】：

我的回答对我来说适用于 32 位和 64 位 Mac Snow Leopard 安装（在两台不同的机器上）：Installing MySQLdb for Django on Mac OS X 10.6 Snow Leopard with MAMP

短版：

[user]$ sudo su
[root]# ARCHFLAGS="-arch $(uname -m)" pip install mysql-python

【讨论】：