Generating a random string

I do would apreciate it if you'd branch off a feed for stuff that's anything remotely python related, so the rest wouldn't clutter planetpython. But that's just my opinion, I'm sure many people like it a lot to read completely python unrelated stuff on planetpython.

I've been doing the following:

        Random random =  new Random();
        long r1 = random.nextLong();
        long r2 = random.nextLong();
        String hash1 = Long.toHexString(r1);
        String hash2 = Long.toHexString(r2);
        String hash = hash1 + hash2;

More verbose but the main differences are the length and the fact I create a Hex string.
I use this for cookies.

Florian, there's a python feed at:

http://cardboard.nu/feeds/blog_python.rdf.

Also, can you think of a concise way to do this in Python?

Here's a way to do any length (passed in):

  String generate(int cch)
	{
	int    cb  = (cch + 3) / 4 * 3;     // base 64: 3 bytes = 4 chars
	byte[] ab  = new byte[cb];
	m_rnd.nextBytes(ab);                // session IDs should be random
	// encode the random bytes as a base-64 value of the desired length;
	// also: replace the special character '/' with the legal '$'
	return new String(Base64OutputStream.encode(ab), 0, cch).replace('/', '$');
	}

Peace.

Hi
i need to know how to generate a random string with length 4 and characrters from A B C D E F ???thank uuuu

On Python, random string, length 4, from characters A,B,C,D,E and F.

import random
string = ' '
for i in random.sample('ABCDEF',4):
    string+=i

probably there are shorter, smarter and more elegant ways.

 package test;
 import java.util.Random;
 public class Ran {
     public static void main(String st[]){
        String str=new  String("QAa0bcLdUK2eHfJgTP8XhiFj61DOklNm9nBoI5pGqYVrs3CtSuMZvwWx4yE7zR");
 	StringBuffer sb=new StringBuffer();
 	Random r = new Random();
 	int te=0;
 	for(int i=1;i<=4;i++){
 		te=r.nextInt(62);
 		sb.append(str.charAt(te));
 	}
 	System.out.print(sb.toString());
     }
 }

Belto,

I still like my way better.

a

i need to know how to create a random string of names that does not duplicate any one name when randomized.

Since this is the #1 result for python random string in Google, it might be worth mentioning that Nasete's snippet can be condensed to:

 import random
 string = ''.join(random.sample('ABCDEF', 4))

Thats if every character should only be used once. If characters should be reused you could do it like this:

import random
string = ''
for i in range(4):
    string += random.choice('ABCDEF')

  ''.join([random.choice('ABCDEF') for x in xrange(4)])