python列表删除函数〔duplicate〕的问题

我知道这可能是一个重复的问题。但由于我的英语表达能力差,我不知道如何搜索它。

最近我在python列表中发现了一个问题。remove,下面是代码:

data = []
for i in range(1000):
    Tempdict = {}
    Tempdict["code"] = str(i)
    data.append(Tempdict)

codes_to_keep = ("1","8","80")
for i in data:
    if not i["code"] in codes_to_keep:
        data.remove(i)

print(data) #{"code":"1","code":"3","code":"5".......},it will keep odd number leave.

或者,如果我用它来删除需要删除的号码:

data = []
for i in range(1000):
    Tempdict = {}
    Tempdict["code"] = str(i)
    data.append(Tempdict)

codes_to_delete = ("1","8","80")
for i in data:
    if i["code"] in codes_to_delete:
        data.remove(i)

print(data) #{"code":"0","code":"2"xxx},This is what I expected 

怎么搞的?