closefd was documented in the open docs but not the matching FileIO
class documented. Further, closefd, part of the core state for the
object was not shown.

In review it was noted that the open docs are a little confusing about
the interaction between closefd and paths, so tweaked them at the same
time.

argument contains not permitted null character or byte.

Issue #18876: The FileIO.mode attribute now better reflects the actual mode under which the file was opened.
Patch by Erik Bray.

An odd bug in OS X 10.4 causes open(2) on a non-existent,
invalid-encoded filename to return errno 22, EINVAL: Invalid argument,
instead of the expected errno 2, ENOENT: No such file or directory,
*if* the containing directory is not empty.  That caused frequent
failures when running the buildbot tests on 10.4 depending on the state
of the test working directory.  The failure is easy to reproduce on
10.4 by running the test directly (not with regrtest), first in an empty
directory, then after adding a file to it.  The fix is to check for and
pass if either errno is returned.

when result of PyInt_AsLong() or PyLong_AsLong() narrowed
to int without checks.

This is a backport of changesets 13e2e44db99d and 525407d89277.

when result of PyLong_AsLong() narrowed to int without checks.

This is a backport of changesets 13e2e44db99d and 525407d89277.

when result of PyLong_AsLong() narrowed to int without checks.

Original patch by Felipe Cruz.

Original patch by Felipe Cruz.

Loosely based on the work by Hirokazu Yamamoto.

Loosely based on the work by Hirokazu Yamamoto.

Patch by Hynek Schlawack.

use io.SEEK_* constants instead of os.SEEK_* where an IO stream is seeked, leaving the os.SEEK_* constants only for os.lseek, as documented

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

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  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.
........

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

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  r85982 | antoine.pitrou | 2010-10-30 18:19:14 +0200 (sam., 30 oct. 2010) | 4 lines

  Issue #10253: FileIO leaks a file descriptor when trying to open a file
  for append that isn't seekable.  Patch by Brian Brazil.
........

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

........
  r85982 | antoine.pitrou | 2010-10-30 18:19:14 +0200 (sam., 30 oct. 2010) | 4 lines

  Issue #10253: FileIO leaks a file descriptor when trying to open a file
  for append that isn't seekable.  Patch by Brian Brazil.
........

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

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  r86000 | brian.curtin | 2010-10-30 18:56:45 -0500 (Sat, 30 Oct 2010) | 2 lines

  Fix ResourceWarning about unclosed file
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svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r86000 | brian.curtin | 2010-10-30 18:56:45 -0500 (Sat, 30 Oct 2010) | 2 lines

  Fix ResourceWarning about unclosed file
........

for append that isn't seekable.  Patch by Brian Brazil.

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

........
  r84506 | antoine.pitrou | 2010-09-04 22:53:29 +0200 (sam., 04 sept. 2010) | 5 lines

  Issue #8734: Avoid crash in msvcrt.get_osfhandle() when an invalid file
  descriptor is provided.  Patch by Pascal Chambon.
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svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r84506 | antoine.pitrou | 2010-09-04 22:53:29 +0200 (sam., 04 sept. 2010) | 5 lines

  Issue #8734: Avoid crash in msvcrt.get_osfhandle() when an invalid file
  descriptor is provided.  Patch by Pascal Chambon.
........

descriptor is provided.  Patch by Pascal Chambon.