MySQL error from Python

Paul M noway at nohow.com
Sun Jun 27 02:04:54 CEST 2004


I encountered the following error when trying to perform a SQL UPDATE to a
MySQL database table from Python.

I would apprciate any assistance. In the Python code I have tried integer
and decimal format specifiers in addition to the string specifier and
nothing worked.

Traceback (most recent call last):
  File "e:\my_python_scripts\commercecraft.py", line 36, in ?
    cursor.execute ("UPDATE product  SET price = '%s' WHERE competitorID=1
AND sku = '%s'",(myprice,mysku))
  File "E:\Python22\Lib\site-packages\MySQLdb\cursors.py", line 95, in
execute
    return self._execute(query, args)
  File "E:\Python22\Lib\site-packages\MySQLdb\cursors.py", line 114, in
_execute
    self.errorhandler(self, exc, value)
  File "E:\Python22\Lib\site-packages\MySQLdb\connections.py", line 33, in
defaulterrorhandler
    raise errorclass, errorvalue
_mysql_exceptions.ProgrammingError: (1064, "You have an error in your SQL
syntax.  Check the manual that cor
responds to your MySQL server version for the right syntax to use near
'139.80'' WHERE competitorID=1 AND sk
u = ''50300288''' at line 1")




Describe product;

Field         Type          Null    Key     Default  Extra
------------  ------------  ------  ------  -------  -------------- 
productID     int(11)               PRI     (NULL)   auto_increment
sku           varchar(50)   YES             (NULL)
description   varchar(60)   YES             (NULL)
price         decimal(7,2)  YES             (NULL)
scrape_date   datetime      YES             (NULL)
competitorID  int(11)       YES             (NULL)



**************************************************************
import test_iopus
import MySQLdb
import sys
import string


try:
    conn = MySQLdb.connect (host = "localhost",
                               user = "root",
                               passwd = "xyz",
                               db = "commerce")
except MySQLdb.Error, e:
    print "Error %d: %s" % (e.args[0], e.args[1])
    sys.exit (1)

cursor = conn.cursor()
cursor.execute ("SELECT sku FROM product WHERE competitorID=1")
while (1):
       row = cursor.fetchone ()
       if row == None:
           break
       mysku = row[0]
       print mysku
print "%d rows were returned" % cursor.rowcount

result = test_iopus.Scrape(mysku)
price = result.split(" ")
tmpprice =  str(price[0])

conversion = string.maketrans("$"," ")
myprice = tmpprice.translate(conversion)


print myprice

cursor.execute ("UPDATE product  SET price = '%s' WHERE competitorID=1 AND
sku = '%s'",(myprice,mysku))
cursor.close()
conn.close()





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