import pymysql
import pandas as pd
from sqlalchemy import create_engine

    def GetQueryByDF(self,sql):
        list_conn = self.GetDBConnectStr()
        connect_info = 'mysql+pymysql://{}:{}@{}:{}/{}?charset=utf8'\
            .format("user", "passwd", "hostname", "port","dbname")
        engine = create_engine(connect_info)
        result = pd.read_sql(sql, engine)
        return result