Martin Panter added the comment: Yes 3.5 should do 64-bit reads (if you have enough memory) thanks to revision 0c57aba6b1a3 (Argument Clinic conversion):
>>> os.read(0, 2**32) Traceback (most recent call last): File "<stdin>", line 1, in <module> MemoryError >>> os.read(0, 2**63) Traceback (most recent call last): File "<stdin>", line 1, in <module> OverflowError: Python int too large to convert to C ssize_t I understand 3.4 is only open to security fixes, not changes like this. But 2.7 is affected: >>> os.read(0, 2**32) Traceback (most recent call last): File "<stdin>", line 1, in <module> OverflowError: signed integer is greater than maximum I guess this could be considered a bug in 2.7 (not an enhancement), but I’m not really sure. ---------- nosy: +martin.panter versions: +Python 2.7 -Python 3.4 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue24550> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com