用python连接mysql数据库

用python连接mysql数据库,python,mysql,Python,Mysql,我创建了一个DB,如下所示: +------------+-------+--------------+-------------------------------+ | Reg_exp | Token | Integer_code | Attribute_value | +------------+-------+--------------+-------------------------------+ | WHITESPACE | - |

我创建了一个DB,如下所示:

+------------+-------+--------------+-------------------------------+
| Reg_exp    | Token | Integer_code | Attribute_value               |
+------------+-------+--------------+-------------------------------+
| WHITESPACE | -     |            0 | -                             |
| begin      | begin |            1 | -                             |
| end        | end   |            2 | -                             |
| if         | if    |            3 | -                             |
我可以使用以下命令访问数据库的元组:我没有包括连接部分,只有查询

if input == str1:
    print "MATCH FOUND!!!"
    sql = "SELECT * FROM EXPRESSION WHERE Integer_code = 1"
    try:
        cursor.execute(sql)
        results = cursor.fetchall()
        for row in results:
            print (row[0], row[1], row[2], row[3])
    except:
        print "failed!!!"
我得到的结果是:

MATCH FOUND!!!
('begin', 'begin', 1L, '-')

我想以表格的形式显示这些值以及列名。我该怎么做呢?

也许我的回答对OP没有用处,因为他问了这个问题,但可能对未来面临同样问题的成员有用

OP正在寻找MySQL格式的Python输出:

mysql> SHOW COLUMNS FROM begueradj FROM begueradj;
+-----------------+-------------+------+-----+---------+-------+
| Field           | Type        | Null | Key | Default | Extra |
+-----------------+-------------+------+-----+---------+-------+
| Reg_exp         | varchar(20) | NO   |     | NULL    |       |
| Token           | varchar(20) | NO   |     | NULL    |       |
| Integer_code    | int(2)      | NO   |     | NULL    |       |
| Attribute_value | varchar(2)  | NO   |     | NULL    |       |
+-----------------+-------------+------+-----+---------+-------+
顺便说一下,我的数据库和表有相同的名称

我创建了与OP相同的表,并用相同的数据填充它

将世界视为一组对象是很好的,因此我的解决方案将在一个类中完成,在该类中,我们需要将连接参数保存到类constructor def__init__self中的Python字典中的MySQL服务器:

当然,需要将这些参数更改为自己的参数

当然,尝试自己做一个黑客不一定是最好的主意。对于我的解决方案,我选择了使用,您可以通过以下方式安装:

首先下载压缩模块。 解压缩文件并将目录更改为该文件。 最后,键入以下命令:sudo python setup.py install 在执行MySQL query self.sqlquery=SELECT*FROM begueradj之后,您需要以元组格式获取列的名称:

# Get columns' names
self.columns = [i[0] for i in self.cursor.description]
注意,当texttable模块处理列表时,将元组转换为列表非常有用

Python程序: 我对我的程序解决方案的几乎每一行都发表了以下评论:

'''
Created on Mar 3, 2016

@author: begueradj
'''
import MySQLdb
import texttable

class Begueradj:
    """ Display MySQL table's content along with
    table's columns name as in pure MySQL format.
    """
    def __init__(self):
        """ Initialize MySQL server login parameters.
        Try to connect to communicate with MySQL database.
        """
        self.config = {'user':'begueradj',
                       'passwd':'begueradj',
                       'host':'127.0.0.1',
                       'db':'begueradj',
                       }
        # Try to log to MySQL server
        try:
            self.dbconnexion = MySQLdb.connect(**self.config)
        except MySQLdb.Error:
            print "Database connexion failure!"

        # Read the content of the MySQL table
        self.sqlquery = """SELECT * FROM beg"""

    def begueradj(self):
        """ Display MySQL table data.
        """
        self.cursor = self.dbconnexion.cursor()
        self.cursor.execute(self.sqlquery)

        # Get columns' names
        self.columns = [i[0] for i in self.cursor.description]

        self.tab = texttable.Texttable()
        self.tablerow = [[]]

       # Fetch all the rows from the query
        self.data = self.cursor.fetchall()

        # Must transform each tuple row to a list
        for r in self.data:
            self.tablerow.append(list(r))

        # Get the number of columns of the table
        self.tab.add_rows(self.tablerow)
        # Align displayed data within cells to left
        self.tab.set_cols_align(['l','l','l','l'])
        # Once again, convert each tuple  row to a list
        self.tab.header(list(self.columns))
        # Display the table (finally)
        print self.tab.draw()

        # Don't forget to close the connexion.
        self.dbconnexion.close()

# Main program
if __name__=="__main__":
    b=Begueradj()
    b.begueradj()
演示:
对不起,刚才的事。我不知怎么误解了你的问题。我认为cursor.description将获得列名,可能还有作为元组的其他列元数据。嗯,看起来你也可以使用DictCursor。
'''
Created on Mar 3, 2016

@author: begueradj
'''
import MySQLdb
import texttable

class Begueradj:
    """ Display MySQL table's content along with
    table's columns name as in pure MySQL format.
    """
    def __init__(self):
        """ Initialize MySQL server login parameters.
        Try to connect to communicate with MySQL database.
        """
        self.config = {'user':'begueradj',
                       'passwd':'begueradj',
                       'host':'127.0.0.1',
                       'db':'begueradj',
                       }
        # Try to log to MySQL server
        try:
            self.dbconnexion = MySQLdb.connect(**self.config)
        except MySQLdb.Error:
            print "Database connexion failure!"

        # Read the content of the MySQL table
        self.sqlquery = """SELECT * FROM beg"""

    def begueradj(self):
        """ Display MySQL table data.
        """
        self.cursor = self.dbconnexion.cursor()
        self.cursor.execute(self.sqlquery)

        # Get columns' names
        self.columns = [i[0] for i in self.cursor.description]

        self.tab = texttable.Texttable()
        self.tablerow = [[]]

       # Fetch all the rows from the query
        self.data = self.cursor.fetchall()

        # Must transform each tuple row to a list
        for r in self.data:
            self.tablerow.append(list(r))

        # Get the number of columns of the table
        self.tab.add_rows(self.tablerow)
        # Align displayed data within cells to left
        self.tab.set_cols_align(['l','l','l','l'])
        # Once again, convert each tuple  row to a list
        self.tab.header(list(self.columns))
        # Display the table (finally)
        print self.tab.draw()

        # Don't forget to close the connexion.
        self.dbconnexion.close()

# Main program
if __name__=="__main__":
    b=Begueradj()
    b.begueradj()