[issue13149] optimization for append-only StringIO

[Antoine Pitrou]

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

I've committed an improved version (which also optimizes seek(0); read()).

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resolution:  -> fixed
stage:  -> committed/rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13149>
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