Question

我使用mysql.connector连接到mysql，这是我的Python句子：

conn = mysql.connector.connect(user = 'root', password = 'password', database = 'test', use_unicode = True)`

但是有一个错误，这是日志：

Traceback (most recent call last):
  File "PythonConnectToMySQL.py", line 6, in <module>
    conn = mysql.connector.connect(user = 'root', password = 'hankenqqqq', database = 'test', use_unicode = True)
  File "/usr/local/lib/python2.7/dist-packages/mysql/connector/__init__.py", line 162, in connect
    return MySQLConnection(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/mysql/connector/connection.py", line 129, in __init__
    self.connect(**kwargs)
  File "/usr/local/lib/python2.7/dist-packages/mysql/connector/connection.py", line 454, in connect
    self._open_connection()
  File "/usr/local/lib/python2.7/dist-packages/mysql/connector/connection.py", line 418, in _open_connection
    self._do_handshake()
  File "/usr/local/lib/python2.7/dist-packages/mysql/connector/connection.py", line 141, in _do_handshake
    packet = self._socket.recv()
  File "/usr/local/lib/python2.7/dist-packages/mysql/connector/network.py", line 235, in recv_plain
    payload_len = struct.unpack_from(
AttributeError: 'module' object has no attribute 'unpack_from'`

这是我的代码：

#!/usr/bin/env python2.7
#-*-coding:utf8-*-

import mysql.connector

conn = mysql.connector.connect(user = 'root', password = 'password', database = 'test', use_unicode = True)

cursor = conn.cursor()    
cursor.execute('create table user (id varchar(20) primary key, name varchar(20))')

cursor.execute('insert into user(id, name) values (%s, %s)', ['1', 'Mary'])
print cursor.rowcount

conn.commit()
cursor.close()

cursor = conn.cursor()
cursor.execute('select * from user where id = %s', '1')

values = cursor.fetchall()
print values

cursor.close()
conn.close()

我在test中创建了数据库mysql 谢谢

Answer 1

您使用的是哪个Python版本？

struct是一个内置库，unpack_from方法包含在Python 2.5版中。

如果您使用的是旧版本的Python，请考虑升级到2.7或3.X.

如果您无法转移到较新版本，可以尝试使用较旧版本的连接器（1.0版与Python 2.4兼容）。您可以下载旧版本here

mysql AttributeError＆＃39; module＆＃39;对象没有属性＆＃39; unpack_from＆＃39;

1 个答案: