python 3.x - MySQL can't login as root on localhost even with sudo -

i can login root on localhost blank password doing:

sudo mysql -u root

i python pymysql:

try:     sql_conn = pymysql.connect(host='localhost', user='root',                            password='') except:     print('exception')

but i'm getting exception when run python script root or sudo. how can fix (security not concern, isolated test environment).

try

  import pymysql     conn = pymysql.connect(host='serverip', port=3306, user='remoteme', passwd='mypassword', db='mydb')

Insert