Anders Andersson wrote:
> I want to concatinate (I apologize for bad English, but it is not my native
> language)
fast det stavas iofs inte konkatinera på svenska heller ;-)
> a list of strings to a string.
> 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?
see the operator module.
but as other have already pointed out, turning a list of strings into a single
string is usually written as:
s = "".join(seq)
in contemporary Python, or
import string
s = string.join(seq, "")
in pre-unicode python style (note that in the first case, the "join" operation
is
actually a method of the separator. seq can be any object that can produce
a sequence. it looks a bit weird, though...)
you can solve this by repeatedly adding individual strings, but that's rather
costly: first, your code will copy string 1 and 2 to a new string (let's call it
A). then your code will copy A and string 3 to a new string B. then your
code will copy B and string 4 to a new string C. etc. lots of unnecessary
copying.
the join method, in contrast, does it all in one operation.
</F>
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