class NumpyMySQLConverter(mysql.connector.conversion.MySQLConverter):
    """ A mysql.connector Converter that handles Numpy types """

def _float32_to_mysql(self, value):
    return float(value)

def _float64_to_mysql(self, value):
    return float(value)

def _int32_to_mysql(self, value):
    return int(value)

def _int64_to_mysql(self, value):
    return int(value)
config = {'user': 'user', 'host': 'localhost', 'password': 'xxx',
    'database': 'db1'}
conn = mysql.connector.connect(**config)
conn.set_converter_class(NumpyMySQLConverter)
MySQL Connector/Python - вставить переменную python в таблицу MySQL