背景
折腾：
的过程中，需要去安装MySQLdb。
下载MySQLdb
去官网：
http://pypi.python.org/pypi/MySQL-python/
看到有1.2.4和1.2.3
所以去最新的1.2.4：
http://pypi.python.org/pypi/MySQL-python/1.2.4
下载对应的编译好的版本：
MySQL-python-1.2.4.win32-py2.7.exe
得到1MB的
MySQL-python-1.2.4.win32-py2.7.exe
安装MySQLdb
双击安装：
结果出错：
看来此x86的exe，是不支持我的win7 x64。
所以只能去下载源码再去安装了。
下载源码：
然后再去解压和安装，结果果然出现
error: Unable to find vcvarsall.bat
的错误：
D:\tmp\dev_tools\python\mysql\MySQL-python-1.2.4\MySQL-python-1.2.4>setup.py install
Downloading http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz
Extracting in c:\users\cli\appdata\local\temp\tmpkapo0l
Now working in c:\users\cli\appdata\local\temp\tmpkapo0l\distribute-0.6.28
Building a Distribute egg in D:\tmp\dev_tools\python\mysql\MySQL-python-1.2.4\MySQL-python-1.2.4
D:\tmp\dev_tools\python\mysql\MySQL-python-1.2.4\MySQL-python-1.2.4\distribute-0.6.28-py2.7.egg
running install
running bdist_egg
running egg_info
writing MySQL_python.egg-info\PKG-INFO
writing top-level names to MySQL_python.egg-info\top_level.txt
writing dependency_links to MySQL_python.egg-info\dependency_links.txt
writing MySQL_python.egg-info\PKG-INFO
writing top-level names to MySQL_python.egg-info\top_level.txt
writing dependency_links to MySQL_python.egg-info\dependency_links.txt
reading manifest file ‘MySQL_python.egg-info\SOURCES.txt’
reading manifest template ‘MANIFEST.in’
writing manifest file ‘MySQL_python.egg-info\SOURCES.txt’
installing library code to build\bdist.win-amd64\egg
running install_lib
running build_py
creating build
creating build\lib.win-amd64-2.7
copying _mysql_exceptions.py -> build\lib.win-amd64-2.7
creating build\lib.win-amd64-2.7\MySQLdb
copying MySQLdb\__init__.py -> build\lib.win-amd64-2.7\MySQLdb
copying MySQLdb\converters.py -> build\lib.win-amd64-2.7\MySQLdb
copying MySQLdb\connections.py -> build\lib.win-amd64-2.7\MySQLdb
copying MySQLdb\cursors.py -> build\lib.win-amd64-2.7\MySQLdb
copying MySQLdb\release.py -> build\lib.win-amd64-2.7\MySQLdb
copying MySQLdb\times.py -> build\lib.win-amd64-2.7\MySQLdb
creating build\lib.win-amd64-2.7\MySQLdb\constants
copying MySQLdb\constants\__init__.py -> build\lib.win-amd64-2.7\MySQLdb\constants
copying MySQLdb\constants\CR.py -> build\lib.win-amd64-2.7\MySQLdb\constants
copying MySQLdb\constants\FIELD_TYPE.py -> build\lib.win-amd64-2.7\MySQLdb\constants
copying MySQLdb\constants\ER.py -> build\lib.win-amd64-2.7\MySQLdb\constants
copying MySQLdb\constants\FLAG.py -> build\lib.win-amd64-2.7\MySQLdb\constants
copying MySQLdb\constants\REFRESH.py -> build\lib.win-amd64-2.7\MySQLdb\constants
copying MySQLdb\constants\CLIENT.py -> build\lib.win-amd64-2.7\MySQLdb\constants
running build_ext
building ‘_mysql’ extension
error: Unable to find vcvarsall.bat
D:\tmp\dev_tools\python\mysql\MySQL-python-1.2.4\MySQL-python-1.2.4>
然后参考之前的办法，结果还是出错：
D:\tmp\dev_tools\python\mysql\MySQL-python-1.2.4\MySQL-python-1.2.4>SET VS90COMNTOOLS=%VS100COMNTOOLS%
D:\tmp\dev_tools\python\mysql\MySQL-python-1.2.4\MySQL-python-1.2.4>setup.py install
running install
running bdist_egg
running egg_info
writing MySQL_python.egg-info\PKG-INFO
writing top-level names to MySQL_python.egg-info\top_level.txt
writing dependency_links to MySQL_python.egg-info\dependency_links.txt
writing MySQL_python.egg-info\PKG-INFO
writing top-level names to MySQL_python.egg-info\top_level.txt
writing dependency_links to MySQL_python.egg-info\dependency_links.txt
reading manifest file ‘MySQL_python.egg-info\SOURCES.txt’
reading manifest template ‘MANIFEST.in’
writing manifest file ‘MySQL_python.egg-info\SOURCES.txt’
installing library code to build\bdist.win-amd64\egg
running install_lib
running build_py
copying MySQLdb\release.py -> build\lib.win-amd64-2.7\MySQLdb
running build_ext
building ‘_mysql’ extension
creating build\temp.win-amd64-2.7
creating build\temp.win-amd64-2.7\Release
C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\BIN\amd64\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -Dversion_info=(1,2,4,’final’,1) -D__version__=1.2.4 "-IC:\Program Files (x86)\MySQL\MySQL
Connector C 6.0.2\include" -ID:\tmp\dev_install_root\Python27_x64\include -ID:\tmp\dev_install_root\Python27_x64\PC /Tc_mysql.c /Fobuild\temp.win-amd64-2.7\Release\_mysql.obj /Zl
_mysql.c
_mysql.c(42) : fatal error C1083: Cannot open include file: ‘config-win.h’: No such file or directory
error: command ‘"C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\BIN\amd64\cl.exe"’ failed with exit status 2
D:\tmp\dev_tools\python\mysql\MySQL-python-1.2.4\MySQL-python-1.2.4>
然后再参考：
所说的：
1）问题 ： _mysql.c(34) : fatal error C1083: Cannot open include file: ‘config-win.h’: No such file or directory
error: command ‘”C:/Program Files/Microsoft Visual Studio 9.0/VC/BIN/cl.exe”‘ failed with exit status 2原因 ：原因是安装MySQL的时候没有安装C语言库。
解决 ：重新运行MySQL的安装程序，选择Modify，把“C Include Files / Lib Files”勾选上，并安装。
去重新安装mysql。
继续：
【记录】为Python安装MySQL数据库模块：MySQLdb
的折腾：
1.参考：
MySQL-python 1.2.3 for Windows and Python 2.7, 32bit and 64bit versions
得知：
python的
此处的要安装x64还是x86，是取决于你所安装的Python的版本，而不是OS的版本。
所以此处去x64 win7中的cmd中确认一下python的版本：
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C:\Users\CLi>python |
的确是x64的，所以的确要安装的是x64。
2.下载对应的：
MySQL-python-1.2.3.win-amd64-py2.7.exe (1.0 MiB)
结果链接失效：“File does not exist.”
3.从：
http://www.codegood.com/downloads
找到一堆的下载，但是结果都失效了。
4.参考：
Python: How to install mysqldb on windows 7 x64?
结果最后找到的下载地址也是上面的那个失效的地址。
5.还是参考：
Install MySQLdb for Python 2.6 in Windows 7 64-bit
和
python MySQLdb在windows环境下的快速安装、问题解决方式
去自己编译吧。
6.然后还是同样错误：
|
D:\tmp\dev_tools\python\mysql\MySQL-python-1.2.4\MySQL-python-1.2.4>SET VS90COMNTOOLS=%VS100COMNTOOLS% D:\tmp\dev_tools\python\mysql\MySQL-python-1.2.4\MySQL-python-1.2.4>setup.py install |
然后参考：
Install Python-MySql on Windows 7 64-bit
看到了site.cfg内容是：
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[options]# embedded: link against the embedded server library# threadsafe: use the threadsafe client# static: link against a static library (probably required for embedded)embedded = Falsethreadsafe = Truestatic = False# The path to mysql_config.# Only use this if mysql_config is not on your PATH, or you have some weird# setup that requires it.#mysql_config = /usr/local/bin/mysql_config# Windows connector libs for MySQL. You need a 32-bit connector for your 32-bit Python build.connector = C:\Program Files (x86)\MySQL\MySQL Connector C 6.0.2 |
然后注意到了，上面的编译过程中的include的路径，就是此处的connector的值。
7.又在这里：
Unofficial Windows Binaries for Python Extension Packages
找到了一个已编译的版本的下载地址：
MySQL-python-1.2.3.win-amd64-py2.7.exe [1.1 Mb] [Python 2.7] [64 bit] [JUN 08, 2011] |
然后去安装：
然后就可以写代码去测试是否工作了。
在Python中使用MySQLdb操作MySQL数据库
参考：
然后用：
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#!/usr/bin/python# -*- coding: utf-8 -*-"""-------------------------------------------------------------------------------Function:【记录】为Python安装MySQL数据库模块：MySQLdbAutor: Crifan LiDate: 2013-04-22-------------------------------------------------------------------------------"""#---------------------------------import---------------------------------------import MySQLdb
def python_mysql_test():
"""
try to use mysql in python
"""
try:
conn=MySQLdb.connect(host='localhost',user='root',passwd='xxx',db='wordpress',port=3306)
print "conn=",conn;
cur=conn.cursor()
print "cur=",cur;
cur.execute('select * from wp_users')
cur.close()
conn.close()
except MySQLdb.Error,e:
print "Mysql Error %d: %s" % (e.args[0], e.args[1])
###############################################################################if __name__=="__main__":
python_mysql_test();
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可以显示连接成功了：
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D:\tmp\tmp_dev_root\python\tutorial_summary\python_mysql_test>python_mysql_test.py conn= <_mysql.connection open to ‘localhost’ at 2a46ad8> cur= <MySQLdb.cursors.Cursor object at 0x0000000002A54C50> |
对应的wordpress的数据库是：
9.再去折腾新建数据项试试：
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#!/usr/bin/python# -*- coding: utf-8 -*-"""-------------------------------------------------------------------------------Function:【记录】为Python安装MySQL数据库模块：MySQLdbAutor: Crifan LiDate: 2013-04-22-------------------------------------------------------------------------------"""#---------------------------------import---------------------------------------import MySQLdb
def python_mysql_test():
"""
try to use mysql in python
"""
try:
conn=MySQLdb.connect(host='localhost',user='root',passwd='xxx',db='test',port=3306, charset='utf8')
print "conn=",conn;
cur=conn.cursor()
print "cur=",cur;
createdDb = cur.execute('create database if not exists pythonMysql')
print "createdDb=",createdDb;
selectedDb = conn.select_db('pythonMysql')
print "selectedDb=",selectedDb;
createdTable = cur.execute('create table test(id int,info varchar(20))')
print "createdTable=",createdTable;
value=[1,'hi rollen']
insertedValue = cur.execute('insert into test values(%s,%s)',value)
print "insertedValue=",insertedValue;
values=[]
for i in range(20):
values.append((i,'hi rollen'+str(i)))
insertedValues = cur.executemany('insert into test values(%s,%s)',values)
print "insertedValues=",insertedValues;
updatedInfo = cur.execute('update test set info="I am rollen" where id=3')
print "updatedInfo=",updatedInfo;
committed = conn.commit()
print "committed=",committed;
closedCur = cur.close()
print "closedCur=",closedCur;
closedConn = conn.close()
print "closedConn=",closedConn;
except MySQLdb.Error,e:
print "Mysql Error %d: %s" % (e.args[0], e.args[1])
###############################################################################if __name__=="__main__":
python_mysql_test();
|
结果如下：
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D:\tmp\tmp_dev_root\python\tutorial_summary\python_mysql_test>python_mysql_test.py conn= <_mysql.connection open to ‘localhost’ at 2a46ad8> cur= <MySQLdb.cursors.Cursor object at 0x0000000002A54C50> D:\tmp\tmp_dev_root\python\tutorial_summary\python_mysql_test>python_mysql_test.py conn= <_mysql.connection open to ‘localhost’ at 2be06a8> cur= <MySQLdb.cursors.Cursor object at 0x00000000028B7BE0> createdDb= 1 selectedDb= None createdTable= 0 insertedValue= 1 insertedValues= 20 updatedInfo= 1 committed= None closedCur= None closedConn= None |
数据库中去看看结果：
都是可以正常工作的。
至此，简单的操作，到此结束。
以后就是针对要操作的数据，如何导入数据库，如何操作数据库了。
数据库操作：
python操作MySQL数据库
坚持每天学一点，每天积累一点点，作为自己每天的业余收获，这个文章是我在吃饭的期间写的，利用自己零散的时间学了一下python操作MYSQL，所以整理一下。
我采用的是MySQLdb操作的MYSQL数据库。先来一个简单的例子吧：
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import MySQLdb
try:
conn=MySQLdb.connect(host='localhost',user='root',passwd='root',db='test',port=3306)
cur=conn.cursor()
cur.execute('select * from user')
cur.close()
conn.close()
except MySQLdb.Error,e:
print "Mysql Error %d: %s" % (e.args[0], e.args[1])
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请注意修改你的数据库，主机名，用户名，密码。
下面来大致演示一下插入数据，批量插入数据，更新数据的例子吧：
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import MySQLdb
try:
conn=MySQLdb.connect(host='localhost',user='root',passwd='root',port=3306)
cur=conn.cursor()
cur.execute('create database if not exists python')
conn.select_db('python')
cur.execute('create table test(id int,info varchar(20))')
value=[1,'hi rollen']
cur.execute('insert into test values(%s,%s)',value)
values=[]
for i in range(20):
values.append((i,'hi rollen'+str(i)))
cur.executemany('insert into test values(%s,%s)',values)
cur.execute('update test set info="I am rollen" where id=3')
conn.commit()
cur.close()
conn.close()
except MySQLdb.Error,e:
print "Mysql Error %d: %s" % (e.args[0], e.args[1])
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请注意一定要有conn.commit()这句来提交事务，要不然不能真正的插入数据。
运行之后我的MySQL数据库的结果就不上图了。
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import MySQLdb
try:
conn=MySQLdb.connect(host='localhost',user='root',passwd='root',port=3306)
cur=conn.cursor()
conn.select_db('python')
count=cur.execute('select * from test')
print 'there has %s rows record' % count
result=cur.fetchone()
print result
print 'ID: %s info %s' % result
results=cur.fetchmany(5)
for r in results:
print r
print '=='*10
cur.scroll(0,mode='absolute')
results=cur.fetchall()
for r in results:
print r[1]
conn.commit()
cur.close()
conn.close()
except MySQLdb.Error,e:
print "Mysql Error %d: %s" % (e.args[0], e.args[1])
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运行结果就不贴了，太长了。
查询后中文会正确显示，但在数据库中却是乱码的。经过我从网上查找，发现用一个属性有可搞定：
在Python代码
conn = MySQLdb.Connect(host='localhost', user='root', passwd='root', db='python') 中加一个属性：
改为：
conn = MySQLdb.Connect(host='localhost', user='root', passwd='root', db='python',charset='utf8')
charset是要跟你数据库的编码一样，如果是数据库是gb2312 ,则写charset='gb2312'。
下面贴一下常用的函数：
然后,这个连接对象也提供了对事务操作的支持,标准的方法
commit() 提交
rollback() 回滚
cursor用来执行命令的方法:
callproc(self, procname, args):用来执行存储过程,接收的参数为存储过程名和参数列表,返回值为受影响的行数
execute(self, query, args):执行单条sql语句,接收的参数为sql语句本身和使用的参数列表,返回值为受影响的行数
executemany(self, query, args):执行单挑sql语句,但是重复执行参数列表里的参数,返回值为受影响的行数
nextset(self):移动到下一个结果集
cursor用来接收返回值的方法:
fetchall(self):接收全部的返回结果行.
fetchmany(self, size=None):接收size条返回结果行.如果size的值大于返回的结果行的数量,则会返回cursor.arraysize条数据.
fetchone(self):返回一条结果行.
scroll(self, value, mode='relative'):移动指针到某一行.如果mode='relative',则表示从当前所在行移动value条,如果 mode='absolute',则表示从结果集的第一行移动value条.