python 查数据库，汉字是 \x 编码

环境：python2.6
oracle：GBK
查询数据库汉字出现：\xbd\xf0\xbc\xd1\xb0\xdb\xd2\xb5 这种貌似是8进制的代码

#
# 查询 SQL 
# 返回数据数组
#
os.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.ZHS16GBK' # linux 中文
def selectSQL(sql):
    try:
        dsn_tns = cx_Oracle.makedsn(ip, port, SID)
        
        conn = cx_Oracle.connect("counter123", "counter456", dsn_tns)
        
        cursor = conn.cursor()
        cursor.execute(sql)
        
        r = cursor.fetchall()
    finally:
        cursor.close()
        conn.close()
    
    return r

# -*- coding:GBK
'''
Created on 2010-9-6

@author: DOC
'''
from com.tmg.utils import DBUtils


pArgs = []

def getProductIdAndName():
    sql = 'select id, productname from mv_product_id where rownum < 20'
#    sql = 'select name from count_page_201007 where rownum < 20'
    return DBUtils.selectSQL(sql)

pArgs = getProductIdAndName()

for i in pArgs:
    print i

解决了：
# 元组会自动编码、解码汉字：()
a = ('m', '工')
print a
print a[1]