[issue3459] optimize bytes.join()

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

Well as I said it occurred to me when doing some measurements of
BufferedReader performance, but I agree that the gain may not justify
the complexity. If nobody objects, feel free to close the issue.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3459>
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