On Monday 20 Dec 2004 22:44, Anders Andersson wrote: > Hello > > I want to concatinate (I apologize for bad English, but it is not my > native language) a list of strings to a string. I could use (I think): > > s = "" > map(lambda x: s.append(x), theList) > > But I want to do something like (I think that the code above is clumsy): > > s = reduce("concatinating function", theList, "") > > And here is the questions: What to replace "concatinating function" > with? Can I in some way give the +-operator as an argument to the reduce > function? I know operators can be sent as arguments in Haskell and since > Python has functions as map, filter and listcomprehension etc. I hope it > is possible in Python too. In Haskell I would write: > > foldr (++) [] > > Thank you for answering! > > -- > Anders Andersson
I would have the reduce like this, string=reduce(lambda x, y: x+y, TheList) In this case you have a lambda function to do the expression, but if you are like the other haskell coders I know, you know more about lambda functions than I do. Pete -- http://mail.python.org/mailman/listinfo/python-list