Problem with format string / MySQL cursor

Florian Lindner Florian.Lindner at xgm.de
Thu Oct 18 22:40:53 CEST 2007


On 18 Okt., 22:08, Paul McNett <p... at ulmcnett.com> wrote:
> timar... at gmail.com wrote:
> > On Oct 19, 7:32 am, Florian Lindner <Florian.Lind... at xgm.de> wrote:
> >> Hello,
> >> I have a string:
>
> >> INSERT INTO mailboxes (`name`, `login`, `home`, `maildir`, `uid`,
> >> `gid`, `password`) VALUES (%s, %s, %s, %s, %i, %i, %s)
>
> >> that is passed to a MySQL cursor from MySQLdb:
>
> >> ret = cursor.execute(sql, paras)
>
> >> paras is:
>
> >> ('flindner', 'te... at florian-lindner.de', '/home/flindner/', '/home/
> >> flindner/Mail/test', 1001, 1001, '123')
>
> >> But that gives me an error:
>
> >> Traceback (most recent call last):
> >>   File "account.py", line 188, in ?
> >>     main()
> >>   File "account.py", line 33, in main
> >>     execute(action, account_type, options)
> >>   File "account.py", line 129, in execute
> >>     executeSQL(sql, options.username, options.login, options.home,
> >> options.directory, options.uid, options.gid, options.password)
> >>   File "/home/flindner/common.py", line 29, in executeSQL
> >>     ret = cursor.execute(sql, paras)
> >>   File "/usr/lib/python2.4/site-packages/MySQLdb/cursors.py", line
> >> 148, in execute
> >>     query = query % db.literal(args)
> >> TypeError: int argument required
>
> >> I don't see errors in the format string or some other problem....
>
> >> What's wrong?
> > You should be using '?' for parameter bindings in your sql string not
> > python format specifiers (you are after all writing sql here not
> > python).
>
> > INSERT INTO mailboxes (`name`, `login`, `home`, `maildir`, `uid`,
> > `gid`, `password`) VALUES (?, ?, ?, ?, ?, ?, ?)
>
> Sorry Tim, but that isn't correct:
>
> >>> import MySQLdb
> >>> MySQLdb.paramstyle
>
> 'format'
>
> Florian, what happens when you replace your %i with %s?

That works! Thanks! But a weird error message for this solution...




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