如何使用 Python 为相同的输入 ID 生成唯一 ID？

Question

I have a list of ids and I want to display a fake id for each id in my list using Python.

I used the uuid1() but when there is a duplicated id in my list the program stop and don't generate the same random id for same input id.

 print uuid.uuid1(data['user']['id']).int>>64

Answer 1

from python uuid doc , uuid1 is dependent on current time.

You could use uuid3 to have a reproducible uuid for the same input, by reusing the same namespace:

namespace = uuid.uuid4()
...
print uuid.uuid3(namespace, "1")

Answer 2

You could just hash your id :

import hashlib
id = 12
hashlib.sha256(str(id).encode()).hexdigest() # with python2.x you don't need to encode()
# => '6b51d431df5d7f141cbececcf79edf3dd861c3b4069f0b11661a3eefacbba918'

You'll have to store the correspondance somewhere though, because there is no way to retrieve the id from a hash.