Question

import xlsxwriter
import MySQLdb as mdb
import sys

reload(sys)
sys.setdefaultencoding('Cp1252')

first = "jim"
last = "bob"

# Initiate MySQL connection.
con = mdb.connect(unix_socket = '/var/lib/mysqld/mysqld.sock', host = 'localhost', user = 'timmy', passwd = '123America', db = 'southend');
cur = con.cursor()

query = "SELECT user_id from users where first like %s and last like %s"
# Execute MySQL query.
cur.execute(query,("%" + first + "%", "%" + last + "%"))

# Gather query results.
rows = cur.fetchall()

# Create a workbook and add a worksheet.
workbook = xlsxwriter.Workbook('like_test.xlsx')
worksheet = workbook.add_worksheet()

# Add headers for our worksheet data.
worksheet.write('A1','User ID')

# Start from the first cell. Rows and columns are zero indexed.
row = 1
col = 0

# Iterate over the data and write it out row by row.
for user_id in (rows):
    worksheet.write(row, col,     user_id)
    row += 1

workbook.close()

con.close()

以下是运行程序时出现的错误：

Traceback (most recent call last):
  File "test.py", line 35, in <module>
    worksheet.write(row, col,     user_id)
  File "/usr/lib/python2.6/site-packages/xlsxwriter/worksheet.py", line 64, in cell_wrapper
    return method(self, *args, **kwargs)
  File "/usr/lib/python2.6/site-packages/xlsxwriter/worksheet.py", line 431, in write
    raise TypeError("Unsupported type %s in write()" % type(token))
TypeError: Unsupported type <type 'tuple'> in write()
Exception Exception: Exception('Exception caught in workbook destructor. Explicit close() may be required for workbook.',) in <bound method Workbook.__del__ of <xlsxwriter.workbook.Workbook object at 0x1a37e90>> ignored

我对python并不熟悉 - 我主要只是开始阶段，他们调用MySQL的方式对我来说很不寻常。有什么帮助吗？

由于我使用变量，我想我被迫使用＆＃39;％s＆＃39;脚本中的选项。

Answer 1

cur.fetchall()返回每行的列值列表。

即使您只获取一个列值，它仍会为每一行返回一个列表..每行包含一个值。

所以：

for row in rows:
    worksheet.write(row, col, row[0])

rows是一个行列表，每个row都是该行的值列表。

Python程序突然结束，我无法破译错误

1 个答案: