Gregor Horvath wrote: > Peter Otten wrote: > >> May you could give us an idea of the current state of basic affairs then >> by translating the following example snippet: > > yes you can do it in VB6, but pythons lists and dictionarys are superior > to those built in in VB and I think to those in most other languages. > >> >> It's me wrote: >> >> >>>I saw this code from an earlier post: >>> >>>lst1 = ["ab", "ac", "ba", "bb", "bc"] >>>lst2 = ["ac", "ab", "bd", "cb", "bb"] >>>dct1 = dict.fromkeys(lst1) >>>print [x for x in lst1 if x not in dct1] >>>print [x for x in lst1 if x in dct1] > > I think line3 should be > > >>dct1 = dict.fromkeys(lst2) > > correct?
Either that or lst2 in the list comprehensions. > VB6 Code: [snip] > Function ColHasKey(col As Collection, item) As Boolean > On Error GoTo er > A = col(item) > ColHasKey = True > Exit Function > er: > If Err.Number = 5 Then > ColHasKey = False > Else > Err.Raise Err.Number > End If > End Function Almost an exception handler ;-) Thank you for taking the time to show me. I had VB.Net in mind when I wrote "current state", though. Peter -- http://mail.python.org/mailman/listinfo/python-list
