suggest unique random string generator in python??

Question

Can any one please suggest me a unique random string generator in python.
I have used before which is not good since it is showing some irregularities in different operating systems. 不好，因为它在不同的操作系统中显示出一些异常。 You need to import uuid ahead of all the packages in a project for issue-less working which is not a good practice.
I have also heard about which uses /dev/random. 。 Is its entropy ?? ？ I am not sure about that.
I can't afford a collision of strings in my process.
Is there any other method can help me in this ?

Answer 1

What about the random and string modules?

>>> import string
>>> import random
>>> ''.join(random.sample(string.letters*5,5))
'QcQxx'

Explanation:

>>> string.letters
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'

I multiply it by 5 so it can be even more random. The higher the number, the more duplicates you are more likely to obtain.

random.sample(k, n) returns n random elements from string.letters , but returns it as a list.

''.join() is called to join the list into a simple string.