linux下MySQLdb安裝見 python
Python MySQLdb在Linux下的快速安裝mysql
http://blog.csdn.net/wklken/article/details/7271019
linux
-------------------------------------------------------------c++
如下是windows環境下的:sql
1. 安裝數據庫mysql數據庫
下載地址:http://www.mysql.com/downloads/windows
能夠順帶裝個圖形工具,我用的是MySQL-Frontpython2.7
2. 安裝MySQLdb工具
好了,到了這一步,你有兩個選擇
A. 安裝已編譯好的版本(一分鐘)
B. 從官網下,本身編譯安裝(介個…..半小時到半天不等,取決於你的系統環境以及RP)
如果系統32位的,有c++編譯環境的,自認爲RP不錯的,能夠選擇本身編譯安裝,固然,遇到問題仍是不免的,一步步搞仍是能搞出來的
如果系統64位的,啥都木有的,建議下編譯版本的,甭折騰
2.1安裝已編譯版本:
http://www.codegood.com/downloads
根據本身系統下載,雙擊安裝,搞定
而後import MySQLdb,查看是否成功
個人,win7,64位,2.7版本
MySQL-python-1.2.3.win-amd64-py2.7.exe
2.2本身編譯安裝
話說搞現成的和本身編譯差距不一一點半點的,特別是64位win7,搞死了
2.2.1安裝setuptools
在安裝MySQLdb以前必須安裝setuptools,要否則會出現編譯錯誤
http://pypi.python.org/pypi/setuptools
http://peak.telecommunity.com/dist/ez_setup.py 使用這個安裝(64位系統必須用這個)
2.2.2安裝MySQLdb
http://sourceforge.net/projects/mysql-python/
解壓後,cmd進入對應文件夾
若是32位系統且有gcc編譯環境,直接
python setup.py build
2.2.3問題彙總
A. 64位系統,沒法讀取註冊表的問題
異常信息以下:
F:\devtools\MySQL-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:\devtools\MySQL-python-1.2.3\setup_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
解決方法:
其實分析代碼,發現只是尋找mysql的安裝地址而已 修改setup_windows.py以下
註解兩行,加入一行,爲第一步mysql的安裝位置
#serverKey = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE,options['registry_key'] )
#mysql_root, dummy = _winreg.QueryValueEx(serverKey,'Location')
mysql_root = r"F:\devtools\MySQL\MySQL Server 5.5"
B.沒有gcc編譯環境
unable to find vcvarsall.bat
解決方法:安裝編譯環境(一個老外的帖子)
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:\MinGW\bin」to your PATH in Windows.(安裝路徑加入環境變量)
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錯誤
異常信息以下
F:\devtools\MinGW\bin\gcc.exe -mno-cygwin-mdll -O -Wall -Dversion_info=(1,2,3,'
final',0) -D__version__=1.2.3"-IF:\devtools\MySQL\MySQL Server 5.5\include" -IC
:\Python27\include -IC:\Python27\PC -c_mysql.c -o build\temp.win-amd64-2.7\Rele
ase\_mysql.o /Zl
gcc: error: /Zl: No such file or directory
error: command 'gcc' failed with exitstatus 1
參數是vc特有的編譯參數,若是使用mingw的話由於是gcc因此不支持。能夠在setup_windows.py中去掉
/Zl
解決方法:
修改setup_windows.py 改成空的
#extra_compile_args = [ '/Zl' ]
extra_compile_args = [ '' ]
目前就遇到這幾個問題,望補充
3. 增刪改查代碼示例及結果(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 #查詢 n = cursor.execute("select * from user") for row in cursor.fetchall(): for r in row: print r, print "" #刪除 sql = "delete from user where name=%s" param =("ted") n = cursor.execute(sql,param) print n cursor.close() #關閉 conn.close()
若是報Python version 2.7 required, which was not found in the registry
安裝setuptools的時候,不能再註冊表中識別出來python2.7
在網上找了方法,僅做筆記,供下次使用
方法:
新建一個register.py 文件,把一下代碼貼進去,保存(G盤)
# # 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()
輸入如下命令(register.py 存放在 G盤底下)
顯示「python 2.7 is already registered」
再安裝setuptools的時候,就能自動識別出來python2.7了。
win7是 64的緣由,在安裝python(32位)時,若是選擇只爲當前用戶,以上問題是不會出現的,若是選擇全部用戶,那就用上面的方法解決吧。