Hi, Can someone please explain why read() should return an immutable bytes type instead of a mutable bytearray? It's not like read() from a file and use buffer as a key in a dict is common. Certainly read() from file or stream, modify, write is very common. I don't understand why the common case pays the price in performance and simplicity. It seemed to me that the immutable bytes was described as being useful in niche situations, but it actually seems to have been favored over bytearray in Python 3.
Was there was a good reason for this decision? Or was this just an artifact in the change to two bytes types? The reason I ask is I have a server application that is mostly stream reading/writing on the hot path and in Python 2.5 the redundant copies add up to a significant overhead, (I estimate as much as 25% from my measurements) I was looking at Python 3 as a way to solve that problem, but unfortunately it doesn't look like it will help. Thanks, -Dan _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
