[EMAIL PROTECTED] wrote:
The method cursor.executemany is there in order to avoid multiple calls
to cursor.execute().
I have tried, with success, to do like every single example (that I
have found on the www) on the subject shows, to use a insert statement
on the form:
statement = INSERT INTO table (colA,colB,colC) values (%s,%s,%s)
and pass in a list containing tuples
list = [('bla','bla','bla'),('bla','bla','bla'),('bla','bla','bla')]
on the form
cursor.executemany(statement,list)
This works fine for all strings, but I have never been able to insert a
single integer or a float using this method. I get an error message
reporting that float (or an int) is required.
Statement is then of course changed to something like
statement = INSERT INTO table (colA,colB,colC) values (%s,%i,%f)
list = [('bla',1,0.65),('bla',3,3.7),('bla',3,0.9)]
Havee anybody experienced similar problems?
Am I doing something wrong?
Any feedback is greatly appreciated.
Here is som real output from the interpreter:
statement = 'insert into testtable3 (url,probability) values (%s,%f)'
^^
That's your problem, right there.
l
[('url1', 0.98999), ('url2', 0.89001)]
cursor.executemany(statement,l)
Traceback (most recent call last):
File stdin, line 1, in ?
File C:\Python24\Lib\site-packages\MySQLdb\cursors.py, line 181, in
execu
any
self.errorhandler(self, TypeError, msg)
File C:\Python24\Lib\site-packages\MySQLdb\connections.py, line 33,
in de
lterrorhandler
raise errorclass, errorvalue
TypeError: float argument required
It's just that you should use %s for *all* parameters, no matter what
their type:
conn = db.connect()
curs = conn.cursor()
curs.execute(
... create table thingy(
...f1 char(10) primary key,
...f2 float))
0L
l = [('url1', 0.98999), ('url2', 0.89001)]
curs.executemany(
... insert into thingy (f1, f2) values (%s, %s), l)
2L
regards
Steve
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Steve Holden +44 150 684 7255 +1 800 494 3119
Holden Web LLC http://www.holdenweb.com/
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