import pymysql.cursors

# Connect to the database
connection = pymysql.connect(host='127.0.0.1',
                             user='root',
                             database='',
                             port=3306,
                             cursorclass=pymysql.cursors.DictCursor)
with connection:
    with connection.cursor() as cursor:
        # Create a new record
        sql = "INSERT INTO cpu_usage VALUES ('2020-06-11 11:23:11Z', 80);"
        cursor.execute(sql)
    with connection.cursor() as cursor:
        # Read a single record
        sql = "SELECT * FROM cpu_usage;"
        cursor.execute(sql)
        result = cursor.fetchall()
        print(result)