创建一个输出具有随机值的字典的函数

Question

I need to create a function rand_dict(keys=ascii_lowercase) that that returns a dictionary with the letters of keys as keys and a permutation of the letters of keys as values. Here is what i got

import string
import numpy as np

keys= 3

def rand_dict(keys):
    list1 = list(string.ascii_lowercase)
    list2 = list(string.ascii_lowercase)
    np.random.shuffle(list2)
    return dict(zip(list1, list2))

print(rand_dict(keys))

I get the correct output - however as you can see, i am not using the keys value anywhere. How do I setup the function to call it as needed.

Answer 1

You need to use keys when constructing list1 and list2 :

def rand_dict(keys = string.ascii_lowercase):
    list1 = list(keys)
    list2 = list(keys)
    np.random.shuffle(list2)
    return dict(zip(list1, list2))