得到錯誤，在python中執行很多時，當我試圖連接到數據庫

Question

我想使用函數與mysql和python，我得到錯誤： 我正在閱讀文件cnn.cvs，我想插入一個表noticias，但我在代碼中有錯誤。在這裏我共享代碼：

import csv 
import MySQLdb 
mydb = MySQLdb.connect(host='localhost', 
user='root', 
passwd='password', 
db='cnn') 
cursor = mydb.cursor() 
f = open('cnn.csv', 'r') 
csv_data = csv.reader(f) 
for row in csv_data: 
cursor.execute('INSERT INTO noticias(title, \ 
link, pubDate)' \ 
'VALUES("%s", "%s", "%s")', 
row) 
#close the connection to the database. 
mydb.commit() 
cursor.close() 
print ("Done") 

，當我執行這就是結果：

C:\Users\SoriyAntony\AppData\Local\Programs\Python\Python36-32\python.exe 
"C:\Program Files\JetBrains\PyCharm Community Edition 
2017.1.4\helpers\pydev\pydevd.py" --multiproc --qt-support --client 127.0.0.1 --port 59726 --file C:/Users/SoriyAntony/PycharmProjects/cnnbd/cnnbd 
pydev debugger: process 10368 is connecting 

Connected to pydev debugger (build 171.4694.38) 
Traceback (most recent call last): 
File "C:\Users\SoriyAntony\AppData\Local\Programs\Python\Python36- 
32\lib\site-packages\MySQLdb\cursors.py", line 238, in execute 
query = query % args 
TypeError: not enough arguments for format string 

During handling of the above exception, another exception occurred: 

Traceback (most recent call last): 
File "C:\Program Files\JetBrains\PyCharm Community Edition 
2017.1.4\helpers\pydev\pydevd.py", line 1591, in <module> 
globals = debugger.run(setup['file'], None, None, is_module) 
File "C:\Program Files\JetBrains\PyCharm Community Edition 
2017.1.4\helpers\pydev\pydevd.py", line 1018, in run 
pydev_imports.execfile(file, globals, locals) # execute the script 
File "C:\Program Files\JetBrains\PyCharm Community Edition 
2017.1.4\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile 
exec(compile(contents+"\n", file, 'exec'), glob, loc) 
File "C:/Users/SoriyAntony/PycharmProjects/cnnbd/cnnbd", line 17, in 
<module> 
row) 
File "C:\Users\SoriyAntony\AppData\Local\Programs\Python\Python36- 
32\lib\site-packages\MySQLdb\cursors.py", line 240, in execute 
self.errorhandler(self, ProgrammingError, str(m)) 
File "C:\Users\SoriyAntony\AppData\Local\Programs\Python\Python36- 
32\lib\site- 
packages\MySQLdb\connections.py", line 52, in defaulterrorhandler 
raise errorclass(errorvalue) 
_mysql_exceptions.ProgrammingError: not enough arguments for format string 

Process finished with exit code 1 

我使用python 3.6，的任何想法？

UPDATE： 這個問題解決：

我用

cursor.executemany() 

，這和它的工作。

Answer 1

的問題是，從CSV文件中讀取每一行返回爲csv.reader字符串列表，您必須將名單row轉換成元組，你的代碼更改爲：

cursor.execute('INSERT INTO noticias(title, \ 
link, pubDate)' \ 
'VALUES("%s", "%s", "%s")', 
tuple(row)) 

更新：

確保有表noticias在你的MySQL數據庫，例如：

create table noticias (title Varchar(255),link varchar(255),pubDate varchar(255)) 

您cnn.csv文件包含空行，當讀它，會出現空列表，你必須放棄它，這樣的改變你的for循環：

for row in csv_data: 
    if len(row)!=0: 
     cursor.execute('INSERT INTO noticias(title, link, pubDate) VALUES("%s", "%s", "%s")',tuple(row))