On Thu, 12 Jun 2008 03:58:53 -0700 (PDT), Nader <[EMAIL PROTECTED]> wrote:
>Hello, > >I have a dictionary and will get all keys which have the same values. > >d = {('a' : 1), ('b' : 3), ('c' : 2),('d' : 3),('e' : 1),('f' : 4)} That's not a dictionary, it's a syntax error. If you actually have a dictionary you could say d = {'a' : 1, 'b' : 3, 'c' : 2,'d' : 3,'e' : 1,'f' : 4} dd = {} for key, value in d.items(): try: dd[value].append(key) except KeyError: dd[value] = [key] Possibly dd is now what you really want; if you really want what you said you want you could use [l for l in dd.values() if len(l) > 1] >I will something as : > >d.keys(where their values are the same) > >With this statement I can get two lists for this example: >l1= ['a','e'] >l2=['b','d'] > >Would somebody tell me how I can do it? > >Regards, >Nader David C. Ullrich -- http://mail.python.org/mailman/listinfo/python-list