随机模块没有属性“选择”

Question

I am using Sublime Text3. I am encountering a problem with the choices attribute with the random module. I do not have the same name in any path or directory. The other attributes of random work just fine.

import random
import string

letters = string.ascii_lowercase
print(letters)
gen = random.choices(letters, k=16)
print(gen)

Here is the error code:

abcdefghijklmnopqrstuvwxyz
Traceback (most recent call last):
  File "/home/anon/.config/sublime-text-3/Packages/User/test.py", line 6, in <module>
    gen = random.choices(letters)
AttributeError: 'module' object has no attribute 'choices'

What are the common causes of this problem?

Answer 1

There's no random.choices in Python 2. You can use random.sample in Python 2.

gen = random.sample(letters, k=16)

random.choices is included in Python 3

Answer 2

It would seem you are using a version of Python that is older than 3.6 which is when random.choices was introduced. You can see it listed at the bottom of this function description here

You can verify your version by running

import sys
sys.version

Answer 3

I encountered the same error when I used Python 2.7.

As a workaround, I simply used random.choice instead of random.choices , in a way as

foo = [random.choice(my_list) for _ in range(50)]

Although we do not have random.choices in Python 2.7, we have random.choice (the former is multiple choices with duplicates, while the latter single choice).