Amaury Forgeot d'Arc <amaur...@gmail.com> added the comment:
The problem seems to be fixed in trunk (the future 2.7).
BufferedRandom.seek() contains a block labelled "# Undo read ahead." which does
not exists in 2.6.
I reproduce the problem with a file opened with mode "rb+"
from io import open
open("tmpfile", "wb").write("abcdefgh" * 1024 + "X")
f = open("tmpfile", "rb+")
print f.read(1) # "a"
f.seek(0, 1)
print f.read(1) # should be "b", 2.6 returns "X"
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nosy: +amaury.forgeotdarc
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue7640>
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