#NEWLINE# def label( length = None ) : #NEWLINE# #INDENT# '\n   Return one of 183,123,959,522,816 possible labels.\n   ' #NEWLINE# first = random . choice ( alpha ) #NEWLINE# rest = [ random . choice ( alphaDigit ) for i in xrange ( ( length or 7 ) ) ] #NEWLINE# newLabel = ( i + '' . join ( rest ) ) #NEWLINE# return newLabel