Python question

Question

Hello, I make a password generator but I do not understand what this "" .join (choice (chars)
I do mainly with the '' .join do?
This is the entire code: import string
from random import randint, choice

letters = string.ascii_letters
digits = string.digits
symbols = string.punctuation
chars = letters + digits + symbols

min_length = 8
max_length = 16
password = "" .join (choice (chars) for x in range (randint (min_length, max_length)))
print (password)

can somebody help me?
Thanks.

Answer 1

"" same ''

Answer 2

as " " same ' '

Answer 3

The join() method ( function ) is used to convert a string array ( list ) towards once string in which items from sequence have been joined by the separator ( a string on which you apply the method ).

Well, the expression passed in arguments produce a randomized list of char, and they are joined with a empty string: so they are concatenated ;)