Hi,

With SQLObject 0.8.0b1 my program hangs indefinitely with 100% CPU
usage if the MySQL server has been gone (Error code 2006) while still
holding the connection in SQLObject and performing a request
afterwards.

The relevant code is in mysqlconnection.py:

    def _executeRetry(self, conn, cursor, query):
        while 1:
            try:
                if self.need_unicode:
                    # For MysqlDB 1.2.1 and later, we go
                    # encoding->unicode->charset (in the mysql db)
                    myquery = unicode(query, self.encoding)
                    return cursor.execute(myquery)
                else:
                    return cursor.execute(query)
            except MySQLdb.OperationalError, e:
                if e.args[0] in (2006, 20013): # SERVER_GONE or
SERVER_LOST error
                    if self.debug:
                        self.printDebug(conn, str(e), 'ERROR')
                else:
                    raise OperationalError(ErrorMessage(e))

* First, 20013 is a typo must be changed back to 2013. See
http://dev.mysql.com/doc/refman/5.0/en/error-messages-client.html

* Second, the newly introduced 2006 triggers the infinite loop in my
case.  I think there is a raise missing.  The bug is already there in
SQLObject 0.7.x but the error code 2006 wasn't checked there, so the
buggy section which misses a raise was not entered.

Kind regards,
Markus

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