Great ideas!
Could putting the users ID athe beginning or end be a good idea? Is it in some way hackable? I wouldn't use it to identifiy the users id with it, but I would be able to garontee an individual string with out to much work. :D
BR,
Jason

On 04/29/2011 07:30 PM, Massimo Di Pierro wrote:
One trick... try avoid having 'l 1' and '0 o O' because depending on
the font you use they can be confused. It may also be a good idea to
only use upper case and numbers.

chars = 'ABCDEFGHIJKLMNPQRSTUVWXYZ12345678" or

chars = 'abcdefghijkmnpqrstuvwxyz23456789"

and

''.join(random.choice(chars) for letter in xrange(8))



On Apr 29, 11:07 am, Julio Schwarzbeck<[email protected]>  wrote:
Try this:

import random
import string
print ''.join(random.choice(string.ascii_letters + string.digits) for
letter in xrange(8))

Output:

print ''.join(random.choice(string.ascii_letters + string.digits) for letter in 
xrange(8))
MRWFo6Fv
print ''.join(random.choice(string.ascii_letters + string.digits) for letter in 
xrange(8))
yiHlYvFj
print ''.join(random.choice(string.ascii_letters + string.digits) for letter in 
xrange(8))
ugYaozlO

Obviously since the "sample" is so small there is a (rather large)
probability that you could get dupes, I'd suggest you increase the
length of your string in any case.

Cheers.

julio

On Apr 29, 8:29 am, Jason Brower<[email protected]>  wrote:







I want to make a unique set of chars that people can't just figure out
what they are for.  The reason for this is to create unique barcodes for
ticket validation when entiring a conference using my software.  This
unique letter numb combo would be in a 2d barcode and it entered using a
restful interface.
I am hoping ticket validation would be with an 8 digit string and
nametags would use something similar for their individual identification
with a 4 digit string. Both will be turned into datamatrix codes that
will be appended to web addresses.  For example,http://iid.me/A123a567
orhttp://iid.me/9F4donewould be for validating the ticket, the other
would be for various perposed depending on who uses it.
Best Regards,
Jason Brower

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