shubalubdub at gmail
Jun 8, 2008, 12:56 PM
Post #2 of 3
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Re: Newbie help (TypeError: int argument required)
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On Jun 8, 1:43 pm, Iain Adams <aca04...@shef.ac.uk> wrote:
> Hi,
>
> I am new to python. I have been having trouble using the MysqlDB. I
> get an error pointing from the line
>
> cursor.execute("UPDATE article SET title = %s, text = %s WHERE id =
> %u", (self.title, self.text, self.id))
>
> Here is the error:
>
> line 56, in save
> cursor.execute("UPDATE article SET title = %s, text = %s WHERE id
> = %u", (self.title, self.text, self.id))
> File "/var/lib/python-support/python2.5/MySQLdb/cursors.py", line
> 151, in execute
> query = query % db.literal(args)
> TypeError: int argument required
>
> However when I print out type(self.id) I get <type 'int'>.
>
> So surely I have provided an int argument.
>
> Any ideas anyone??
>From MySQLdb User's Guide (http://mysql-python.sourceforge.net/
MySQLdb.html):
To perform a query, you first need a cursor, and then you can execute
queries on it:
c=db.cursor()
max_price=5
c.execute("""SELECT spam, eggs, sausage FROM breakfast
WHERE price < %s""", (max_price,))
In this example, max_price=5 Why, then, use %s in the string? Because
MySQLdb will convert it to a SQL literal value, which is the string
'5'. When it's finished, the query will actually say, "...WHERE price
< 5".
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