Amaury Forgeot d'Arc <[EMAIL PROTECTED]> added the comment:
Indeed. If I replace the file with
f = io.BytesIO(open("tst", "rb").read())
timings are divided by 20...
After quick profiling, it seems that PyLong_New would benefit from a
free list. len(bytearray) is called very often.
To stay simple, it would be enough to only store longs of length 1 (<2**15).
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nosy: +amaury.forgeotdarc
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Python tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue3873>
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