PYTHON替換CSV文件內的部分字符

#coding:utf-8
import os
import os.path


csvpath=os.getcwd()+"\\"
f=open('./kqi.csv',encoding="gbk")
g=open('./mos.csv',encoding="gbk")
content = f.read()
conten1 = g.read()
f.close()
g.close()

t = content.replace("=","")
t1=conten1.replace("=","")
with open("kqi_new.CSV","w",encoding='gbk') as f1:
    f1.write(t)


with open("mos_new.CSV","w",encoding='gbk') as f2:
    f2.write(t1)