How to change the output of this Python program

Question

I've written a simple python password generator:

import string
import random

print "Password generator will create a random customizable password."
print "Choose your options wisely."

number = int(raw_input("How many letters do you want in your password?"))
caps = str(raw_input("Do you want capital letters in your password? Y/N:"))
symbols = str(raw_input( "Do you want punctuation and other symbols in your password?    Y/N:"))
otherchoice = str(raw_input( "Do you want numbers in your password? Y/N:"))

punctuation = ("!", ".", ":", ";", ",", "?", "'", "@", "$", "~", "^","%", "#", "&", "/")
numbers = map(str,range(0,10))
stringpunctuation = "".join(punctuation)
stringnumbers = "".join(numbers)
lowercase = string.ascii_lowercase
uppercase = string.ascii_uppercase

if caps == "Y":
    characters = lowercase + uppercase
else:
    characters = lowercase

if symbols == "Y":
    characters += stringpunctuation
if otherchoice == "Y":
    characters += stringnumbers

password = random.sample(characters, number)
print "The password is", password

This is an example of what appears in the terminal when I run it:

Password generator will create a random customizable password.
Choose your options wisely.
How many letters do you want in your password?15
Do you want capital letters in your password? Y/N:Y
Do you want punctuation and other symbols in your password? Y/N:Y
Do you want numbers in your password? Y/N:Y
The password is ['x', 'p', 'E', 'X', 'V', '#', ',', '@', 'q', 'N', 'F', 'U', 'b', 'W', '.']

How can I make it so that the output is something like this (using the password in the example): xpEXV#,@qNFUbW.

I don't really need to know the answer, the practical result will be the same, I'm just super curious.

Martijn Pieters · Accepted Answer · 2014-11-15 18:49:48Z

4

Join the characters to together with the str.join() method; pick a joining string and call the method on that, passing in your list:

password = ''.join(password)

This joins the characters with the empty string (''):

>>> password = ['x', 'p', 'E', 'X', 'V', '#', ',', '@', 'q', 'N', 'F', 'U', 'b', 'W', '.']
>>> ''.join(password)
'xpEXV#,@qNFUbW.'

For other uses you could pick a different joiner:

>>> '->'.join(password)
'x->p->E->X->V->#->,->@->q->N->F->U->b->W->.'
>>> '...'.join(password)
'x...p...E...X...V...#...,[email protected]....'

answered Nov 15, 2014 at 18:49

Martijn Pieters

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1 Comment

chilliefiber Over a year ago

Thanks a lot, I feel so stupid now, specially since I already knew how to use "".join. I'll accept your answer as soon as possible

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