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()