import pymysql

conn = pymysql.connect(host='127.0.0.1',user='root',password='',db='networklist')

a = conn.cursor()

sql = 'SELECT * from `rios`;'

a.execute(sql)

countRow = a.execute(sql)
print("number   of rows :" ,countRow)

getFirstLine = a.fetchone()
print(getFirstLine)