MySQLdb 连接Mysql 数据库出错解决

#coding=utf-8

import MySQLdb

if __name__ == "__main__":

db = MySQLdb.connect(host=<span style="color:#FF0000;">'localhost'</span>,

port=3306,

user='root',

passwd=XX',

db='XX')

cursor = db.cursor()

sql = "select * from student"

cursor.execute(sql)

for line in cursor.fetchall():

print line

db.close()

运行时出现如下错误：

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pydev debugger: starting

Traceback (most recent call last):

File "C:\Program Files\aptan3\plugins\org.python.pydev_2.6.0.2012062121\pysrc\pydevd.py", line 1392, in <module>

debugger.run(setup['file'], None, None)

File "C:\Program Files\aptan3\plugins\org.python.pydev_2.6.0.2012062121\pysrc\pydevd.py", line 1085, in run

pydev_imports.execfile(file, globals, locals) #execute the script

File "D:\Aptana Studio 3 Workspace\first\com\lin\test01.py", line 9, in <module>

db='netbase')

File "E:\python27\lib\site-packages\MySQLdb\__init__.py", line 81, in Connect

return Connection(*args, **kwargs)

File "E:\python27\lib\site-packages\MySQLdb\connections.py", line 187, in __init__

super(Connection, self).__init__(*args, **kwargs2)

_mysql_exceptions.OperationalError: (2003, "Can't connect to MySQL server on 'localhost' (10061)")

把host="localhost" 改为 host="127.0.0.1"就可以了

[python] view plaincopy

#coding=utf-8

import MySQLdb

if __name__ == "__main__":

db = MySQLdb.connect(<span style="color:#FF0000;">host='127.0.0.1',</span>

port=3306,

user='root',

passwd=XX',

db='XX')

cursor = db.cursor()

sql = "select * from student"

cursor.execute(sql)

for line in cursor.fetchall():

print line

db.close()

运行如下：

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pydev debugger: starting

('lin', 88L)

('cjm', 8L)

Django + MySQLdb + Mysql settings 文件数据库设置：

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DATABASES = {

'default': {

'ENGINE': 'django.db.backends.mysql', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.

'NAME': 'mydb', # Or path to database file if using sqlite3.

# The following settings are not used with sqlite3:

'USER': 'root',

'PASSWORD': 'mydb',

#'HOST': '',

'HOST': '127.0.0.1', # Empty for localhost through domain sockets or '127.0.0.1' for localhost through TCP.

'PORT': '3306', # Set to empty string for default.

}

}

然后连接数据库：

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import sys; print('%s %s' % (sys.executable or sys.platform, sys.version))

PyDev console: using default backend (IPython not available).

E:\python27\python.exe 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit (Intel)]

from django.core import management;import netbase.settings as settings;management.setup_environ(settings)

u'D:\\Aptana Studio 3 Workspace\\netbase\\netbase'

from django.db import models

from django.db import connection

cursor = connection.cursor()

转：http://blog.csdn.net/jinnian_lin/article/details/10071081