感覺和oracle的輸出字符集有關，gbk,gb18030都試了沒解決，注意紅色部分，修改後解決問題

#!/usr/bin/env python
import sys
import csv
import cx_Oracle
import codecs
import os

#os.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.ZHS16GBK'
os.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.AL32UTF8'

conn = cx_Oracle.connect("lzsi", "lzsi", "10.1.1.210/orcl")
curs = conn .cursor()

tabname=sys.argv[1]
csv_file_dest = "/home/hadoop/oracledata/"+tabname+ ".csv"
outputFile = open(csv_file_dest,'w',encoding='utf-8',errors='ignore')# 'wb'
 
output = csv.writer(outputFile, dialect='excel')

sql = "select * from "+tabname #+" where rownum<100" # get a list of all tables
curs.execute(sql)

 
cols = []
for col in curs.description:
        cols.append(col[0])

output.writerow(cols)

for row_data in curs: # add table rows
    output.writerow(row_data)

outputFile.close()
curs.close()
conn.close()