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if the underlying raw stream is unseekable, even if the seek could be
satisfied using the internal buffer.  Patch by John O'Connor.

could appear on BufferedRandom streams.

a read1() method), and add an undocumented *write_through* parameter to
mandate unbuffered writes.

cleared by the garbage collector.  This fixes a segfault when an instance
and its type get caught in a reference cycle, and the instance's
deallocator calls one of the methods on the type (e.g. when subclassing
IOBase).

Diagnosis and patch by Davide Rizzo.

On FreeBSD, the SIGALRM signal is sometimes received by the reader thread.

On FreeBSD, the SIGALRM signal is sometimes received by the reader thread.

underlying OS pipe buffer size.

the file is closed.

on a file opened in read+write mode (namely: reading, seeking a bit forward,
writing, then seeking before the previous write but still within buffered
data, and writing again).

Patch by John O'Connor.

and/or change the signal mask of the calling thread.

Fix also tests of test_io using threads and an alarm: use pthread_sigmask() to
ensure that the SIGALRM signal is received by the main thread.

Original patch written by Jean-Paul Calderone.

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r88610 | antoine.pitrou | 2011-02-25 22:24:11 +0100 (ven., 25 févr. 2011) | 4 lines

  Issue #10956: Buffered I/O classes retry reading or writing after a signal
  has arrived and the handler returned successfully.
........

has arrived and the handler returned successfully.

'latin-1' and 'utf-8'.

These are optimized in the Python Unicode implementation
to result in more direct processing, bypassing the codec
registry.

Also see issue11303.

Many tests simply didn't care if they unset a pre-existing trace function. This
made test coverage impossible. This patch fixes various tests to put back any
pre-existing trace function. It also introduces test.support.no_tracing as a
decorator which will temporarily unset the trace function for tests which
simply fail otherwise.

Thanks to Kristian Vlaardingerbroek for helping to find the cause of various
trace function unsets.

if available.

(at Georg's request)

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r87427 | antoine.pitrou | 2010-12-21 22:20:59 +0100 (mar., 21 déc. 2010) | 3 lines

  Issue #10750: The `raw` attribute of buffered IO objects is now read-only.
........

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r86981 | antoine.pitrou | 2010-12-03 19:41:39 +0100 (ven., 03 déc. 2010) | 5 lines

  Issue #10478: Reentrant calls inside buffered IO objects (for example by
  way of a signal handler) now raise a RuntimeError instead of freezing the
  current process.
........
  r86984 | antoine.pitrou | 2010-12-03 20:14:17 +0100 (ven., 03 déc. 2010) | 3 lines

  Add an "advanced topics" section to the io doc.
........

way of a signal handler) now raise a RuntimeError instead of freezing the
current process.

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r86596 | ezio.melotti | 2010-11-20 21:04:17 +0200 (Sat, 20 Nov 2010) | 1 line

  #9424: Replace deprecated assert* methods in the Python test suite.
........

unpickling them produced nonsensical results.

deallocated without explicit closing.  These warnings are silenced by
default, except in pydebug mode.

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r85482 | antoine.pitrou | 2010-10-14 17:34:31 +0200 (jeu., 14 oct. 2010) | 4 lines

  Replace the "compiler" resource with the more generic "cpu", so
  as to mark CPU-heavy tests.
........

as to mark CPU-heavy tests.

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r84814 | antoine.pitrou | 2010-09-14 20:37:24 +0200 (mar., 14 sept. 2010) | 4 lines

  Issue #9854: The default read() implementation in io.RawIOBase now
  handles non-blocking readinto() returning None correctly.
........

handles non-blocking readinto() returning None correctly.

unsupported operation is attempted (for example, writing to a file open
only for reading).

frombytes() and tobytes(), respectively, to avoid confusion.  Furthermore,
array.frombytes(), array.extend() as well as the array.array()
constructor now accept bytearray objects.  Patch by Thomas Jollans.

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r84239 | antoine.pitrou | 2010-08-21 21:09:32 +0200 (sam., 21 août 2010) | 4 lines

  Issue #9617: Signals received during a low-level write operation aren't
  ignored by the buffered IO layer anymore.
........

ignored by the buffered IO layer anymore.