On Tue, Aug 10, 2010 at 6:22 PM, Steven D'Aprano <st...@pearwood.info>wrote:
> On Wed, 11 Aug 2010 06:09:28 am Joel Goldstick wrote: > > The str part of str.join() is the string where the result is stored, > > so you can start off with an empty string: "" > > I don't understand what you mean by that. I can only imagine you think > that the string part is a fixed-width buffer that has the result stored > into it, but of course that's ridiculous because that's nothing like > what join does. Python strings are immutable so you can't store > something inside an existing string, but even if they weren't, since > the result of join is usually larger than the initial string you pass, > what would be the point? > > The string part of str.join is the string which is used to join the rest > of the arguments. This: > > "spam".join([ "a", "b", "c" ]) > > is equivalent to: > > "a" + "spam" + "b" + "spam" + "c" > > except more efficient and faster. The result is stored in a new string. > > > > -- > Steven D'Aprano > > Steve, thanks for correcting me. The str being the 'glue' that joins between each of the list members. -- Joel Goldstick
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