[Python-Dev] Usage of += on strings in loops in stdlib (original) (raw)

Serhiy Storchaka storchaka at gmail.com
Wed Feb 13 12:37:44 CET 2013

On 13.02.13 09:52, Nick Coghlan wrote:

On Wed, Feb 13, 2013 at 5:42 PM, Alexandre Vassalotti <alexandre at peadrop.com> wrote:

I don't think so. Ropes are really useful when you work with gigabytes of data, but unfortunately they don't make good general-purpose strings. Monolithic arrays are much more efficient and simple for the typical use-cases we have in Python. If I recall correctly, io.StringIO and io.BytesIO have been updated to use ropes internally in 3.3.

io.BytesIO has not yet. But it will be in 3.4 (issue #15381).

On the other hand, there is a plan for rewriting StringIO to more effective continuous buffer implementation (issue #15612).

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