#-*- coding:utf-8 -*-

from sqlalchemy import create_engine

class mysql_engine():
 user='******'
 passwd='******'
 host='******'
 port = '******'
 db_name='******'
 engine = create_engine('mysql://{0}:{1}@{2}:{3}/{4}?charset=utf8'.format(user,passwd,host,port,db_name))

def get_data(sql):
 pg_enine=mysql_engine()
 try:
  with pg_enine.engine.connect() as con, con.begin():
   df=pd.read_sql(sql,con)# 获取数据
  con.close()
 except:
  df=None
 return df

conn = MySQLdb.connect(host="******",user="******",passwd="******",db='******',port = ******,charset="utf8")
sql = "select * from ****** limit 3"
df = pd.read_sql(sql,conn,index_col="id")
print df