windows安装mysqldb

使用Python访问MySQL,需要一系列安装


linux下MySQLdb安装见  

Python MySQLdb在Linux下的快速安装

http://blog.csdn.net/wklken/article/details/7271019


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以下是windows环境下的:


1.      安装数据库mysql

下载地址:http://www.mysql.com/downloads/

可以顺带装个图形工具,我用的是MySQL-Front

 

2.      安装MySQLdb

 

好了,到了这一步,你有两个选择

A.     安装已编译好的版本(一分钟)

B.     从官网下,自己编译安装(介个…..半小时到半天不等,取决于你的系统环境以及RP)

 

若是系统32位的,有c++编译环境的,自认为RP不错的,可以选择自己编译安装,当然,遇到问题还是难免的,一步步搞还是能搞出来的

若是系统64位的,啥都木有的,建议下编译版本的,甭折腾

 

2.1安装已编译版本:

http://www.codegood.com/downloads

根据自己系统下载,双击安装,搞定

然后import MySQLdb,查看是否成功

 

我的,win7,64位,2.7版本

MySQL-python-1.2.3.win-amd64-py2.7.exe

 

2.2自己编译安装

话说搞现成的和自己编译差距不一一点半点的,特别是64位win7,搞死了

 

2.2.1安装setuptools

在安装MySQLdb之前必须安装setuptools,要不然会出现编译错误

http://pypi.python.org/pypi/setuptools

http://peak.telecommunity.com/dist/ez_setup.py 使用这个安装(64位系统必须用这个)

 

2.2.2安装MySQLdb

下载MySQLdb

http://sourceforge.net/projects/mysql-python/

 

解压后,cmd进入对应文件夹

如果32位系统且有gcc编译环境,直接

python setup.py build

 

2.2.3问题汇总

A. 64位系统,无法读取注册表的问题

异常信息如下:

F:devtoolsMySQL-python-1.2.3>pythonsetup.py build

Traceback (most recent call last):

 File "setup.py", line 15, in <module>

   metadata, options = get_config()

 File "F:devtoolsMySQL-python-1.2.3setup_windows.py", line7, in get_config

   serverKey = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, options[' registry_ke

y'] )

WindowsError: [Error 2] The system cannotfind the file specified

 

解决方法:

其实分析代码,发现只是寻找mysql的安装地址而已  修改setup_windows.py如下

注解两行,加入一行,为第一步mysql的安装位置

 

   #serverKey = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE,options['registry_key'] )

   #mysql_root, dummy = _winreg.QueryValueEx(serverKey,'Location')

   mysql_root = r"F:devtoolsMySQLMySQL Server 5.5"

 

B.没有gcc编译环境

unable to find vcvarsall.bat

解决方法:安装编译环境(一个老外的帖子)

1)  First ofall download MinGW. Youneed g++compiler and MingW make in setup.

2)  If youinstalled MinGW for example to “C:MinGW” then add “C:MinGWin”to your PATH in Windows.(安装路径加入环境变量)

3)  Now startyour Command Prompt and go the directory where you have your setup.py residing.

4)  Last andmost important step:

setup.py install build --compiler=mingw32

或者在setup.cfg中加入:
[build]
    compiler = mingw32

 

C.gcc: /Zl: No suchfile or directory错误

异常信息如下

F:devtoolsMinGWingcc.exe -mno-cygwin-mdll -O -Wall -Dversion_info=(1,2,3,'

final',0) -D__version__=1.2.3"-IF:devtoolsMySQLMySQL Server 5.5include" -IC

:Python27include -IC:Python27PC -c_mysql.c -o build emp.win-amd64-2.7Rele

ase\_mysql.o /Zl

gcc: error: /Zl: No such file or directory

error: command 'gcc' failed with exitstatus 1

 

参数是vc特有的编译参数,如果使用mingw的话因为是gcc所以不支持。可以在setup_windows.py中去掉
/Zl  

 

解决方法:

修改setup_windows.py  改为空的

#extra_compile_args = [ '/Zl' ]

    extra_compile_args = [ '' ]

 目前就遇到这几个问题,望补充

 

3.  增删改查代码示例及结果(just for test)

[sql] view plain copy
print?

    CREATE TABLE `user` (  
      `Id` int(11) NOT NULL AUTO_INCREMENT,  
      `name` varchar(255) DEFAULT NULL,  
      `age` varchar(255) DEFAULT NULL,  
      PRIMARY KEY (`Id`)  
    ) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8; 
[python] view plain copy
print?

    #-*- coding:utf-8 -*-  
    #dbtest.py  
    #just used for a mysql test  
    ''''' 
    Created on 2012-2-12 
     
    @author: ken 
    '''  
    #mysqldb      
    import time, MySQLdb, sys    
             
    #connect   
    conn=MySQLdb.connect(host="localhost",user="root",passwd="test_pwd",db="school",charset="utf8")    
    cursor = conn.cursor()      
             
    #add  
    sql = "insert into user(name,age) values(%s,%s)"     
    param = ("tom",str(20))      
    n = cursor.execute(sql,param)      
    print n      
             
    #更新      
    sql = "update user set name=%s where Id=9001"     
    param = ("ken")      
    n = cursor.execute(sql,param)      
    print n      
      
    #查询      
    n = cursor.execute("select * from user")      
    for row in cursor.fetchall():      
        for r in row:      
            print r,     
    print ""  
      
      
    #删除      
    sql = "delete from user where name=%s"     
    param =("ted")      
    n = cursor.execute(sql,param)      
    print n      
    cursor.close()      
             
    #关闭      
    conn.close()  

如果报Python version 2.7 required, which was not found in the registry

安装setuptools的时候,不能再注册表中识别出来python2.7

在网上找了方法,仅作笔记,供下次使用

方法:

新建一个register.py 文件,把一下代码贴进去,保存(G盘)

#
# script to register Python 2.0 or later for use with win32all
# and other extensions that require Python registry settings
#
# written by Joakim Loew for Secret Labs AB / PythonWare
#
# source:
# http://www.pythonware.com/products/works/articles/regpy20.htm
#
# modified by Valentine Gogichashvili as described in http://www.mail-archive.com/distutils-sig@python.org/msg10512.html
 
import sys
 
from _winreg import *
 
# tweak as necessary
version = sys.version[:3]
installpath = sys.prefix
 
regpath = "SOFTWARE\Python\Pythoncore\%s\" % (version)
installkey = "InstallPath"
pythonkey = "PythonPath"
pythonpath = "%s;%s\Lib\;%s\DLLs\" % (
    installpath, installpath, installpath
)
 
def RegisterPy():
    try:
        reg = OpenKey(HKEY_CURRENT_USER, regpath)
    except EnvironmentError as e:
        try:
            reg = CreateKey(HKEY_CURRENT_USER, regpath)
            SetValue(reg, installkey, REG_SZ, installpath)
            SetValue(reg, pythonkey, REG_SZ, pythonpath)
            CloseKey(reg)
        except:
            print "*** Unable to register!"
            return
        print "--- Python", version, "is now registered!"
        return
    if (QueryValue(reg, installkey) == installpath and
        QueryValue(reg, pythonkey) == pythonpath):
        CloseKey(reg)
        print "=== Python", version, "is already registered!"
        return
    CloseKey(reg)
    print "*** Unable to register!"
    print "*** You probably have another Python installation!"
 
if __name__ == "__main__":
    RegisterPy()

 输入以下命令(register.py 存放在 G盘底下)

显示“python 2.7 is already registered”

再安装setuptools的时候,就能自动识别出来python2.7了。

win7是 64的原因,在安装python(32位)时,如果选择只为当前用户,以上问题是不会出现的,如果选择所有用户,那就用上面的方法解决吧。

原文地址:https://www.cnblogs.com/hadean/p/5803407.html