Python导入oracle数据的方法

import cx_Oracle  
dns_tns=cx_Oracle.makedsn("192.168.0.288",1521,"skynet")  
print dns_tns  
con = cx_Oracle.connect('alibaba', 'zhimakamen', dns_tns)  
cur=con.cursor()  
for index,line in enumerate(file("f2.csv")):  
 sql="""insert into iq_data_B011F8286A1B2000A  
  (field1,field2,field3,field4) values (""" 
 for fields in (line.split(",")):  
  sql=sql+"'"+fields+"'," 
 cur.execute(sql[:-1]+")")  
con.commit()  
con.close()