Question

i’m connecting python to mySqL Databases and sending things from android two Double values to be store in Mysql then i get this error

enter code here
 Exception in thread :
 Traceback (most recent call last):
  File "C:\Python27\lib\threading.py", line 530, in __bootstrap_inner
self.run()
  File "C:\Users\ingy\Desktop\New folder (2)\sssssss.py", line 64, in run
self.pacman()
 File "C:\Users\ingy\Desktop\New folder (2)\sssssss.py", line 45, in pacman
x.execute("UPDATE location SET x='%s'"%(x1))
File "C:\Python27\lib\site-packages\MySQLdb\cursors.py", line 174, in execute
self.errorhandler(self, exc, value)
 File "C:\Python27\lib\site-packages\MySQLdb\connections.py", line 36, in  defaulterrorhandler
 raise errorclass, errorvalue
 OperationalError: (2006, 'MySQL server has gone away')

Now

   enter code here
         OperationalError: (2013, 'Lost connection to MySQL server during query')

Answer 1

This is what I do, in our case it only goes away once in the worst case and throws a different error, so we don’t get infinite recurision.

def query(self, sql, parameters=None):
    cursor = self.db.cursor()
    try:
        cursor.execute(sql, parameters)
        return cursor
    except mysql.connector.Error as ex:
        if ex.errno == 2006: # mysql has gone away
            cursor.close()
            self.connect()
            return self.query(sql, parameters)
        raise ex