[issue15381] Optimize BytesIO to so less reallocations when written, similarly to StringIO

[Serhiy Storchaka]

Serhiy Storchaka <storchaka at gmail.com> added the comment:

Hmm. Without the ability to reproduce this effect, it will be difficult for me to 
get rid of him. What times for StringIO, append/join, unpatched BytesIO? Do 
this happen with a little different numbers (n=1500, 1600,...,3000)?

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<http://bugs.python.org/issue15381>
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