and the DOS error code in errno. Revert changes where
WindowsError catch blocks unnecessarily special-case OSError.

Clarified that the returned object is file-like rather than an actual file.

another hack remains in test___all__.py, but the problem that one
addresses is more general than *just* FCNTL, so leaving it alone.

the file is a symlink.  Instead, use os.lstat directly, if it exists;
fall back on os.stat or the built-in open.  Thanks to Iustin Pop.

(same as commit of Sun Nov 2 to the release23-maint branch)

This should not be backported to 2.3, as it might break backwards
compatibility.

are satisfied in a case-insensitive manner, the attempt to import (the
non-existent) fcntl gets satisfied by FCNTL.py instead, and the tempfile
module defines a Unix-specific _set_cloexec() function in that case.  As
a result, temp files can't be created then (blows up with an AttributeError
trying to reference fcntl.fcntl).  This just popped up in the spambayes
project, where there is no apparent workaround (which is why I'm pushing
this in now).

tempfile.py already contained code to let it run without threads present;
for Queue.py this is considered a useful feature too.

often unavoidable.

put more in the critical section than absolutely needed, acquire
the mutex before the "try".

Also, don't call gettempdir() in the default expression for the 'dir'
argument to various functions; use 'dir=None' for the default and
insert 'if dir is None: dir = gettemptir()' in the bodies.  That way
the work done by gettempdir is postponed until needed.

    binary=True
to
    text=False

by BDFL Pronouncement.  All other changes follow from this.  The change
to the docs is ready to go, but blocked by another JackMacLock in the
doc directory.

Although Cygwin attempts to be as Posix compliant
as possible, it has difficulties unlinking open
files. This is not surprising given that Cygwin is
dependent on Win32 which in turn has this problem
itself.

The attached tempfile patch acknowledges this
Cygwin limitation. Without this patch, Cygwin
fails test_tempfile (i.e., test_has_no_name) as
follows:

$ ./python -E -tt ../Lib/test/regrtest.py -l test_tempfile
test_tempfile
test test_tempfile failed -- Traceback (most recent call last):
  File "/home/jt/src/PythonCvs/Lib/test/test_tempfile.py", line 689, in test_has_no_name
    self.failOnException("rmdir", ei)
  File "/home/jt/src/PythonCvs/Lib/test/test_tempfile.py", line 33, in failOnException
    self.fail("%s raised %s: %s" % (what, ei[0], ei[1]))
  File "/home/jt/src/PythonCvs/Lib/unittest.py", line 260, in fail
    raise self.failureException, msg
AssertionError: rmdir raised exceptions.OSError: [Errno 90] Directory not empty: '/mnt/c/DOCUME~1/jatis/LOCALS~1/Temp/tmpM_z8nj'

was reversed).

Boolean, so changed its default value from 1 to True.

rewrite, by Zack Weinberg).  This replaces most code in tempfile.py
(please review!!!) and adds extensive unit tests for it.

This will cause some warnings in the test suite; I'll check those in
soon, and also the docs.

TemporaryFile.  This flag causes the fd to be closed on exec().

uses _DummyMutex on platforms without threads.

TemproraryFileWrapper wrapper anymore, and should be immune from the
problem that a temp file inherited by a spawned process caused an
attempt to close the temp file in the spawning process to blow
up (the unlink in TemporaryFileWrapper.close() blew up with a
"Permission denied" error because, despite that the temp file got
closed in the spawning process, the spawned process still had it open
by virtue of C-level file descriptor inheritance).  In context,
that bug took days to figure out <wink/sigh>.

This is an ancient race when multiple threads call gettempdir() (or
anything relying on it) for the first time.

Fixed x-platform via the Big Hammer of rearranging the code to serialize
the first calls.  Subsequent calls are as fast as before.

Note that the Python test suite can't provoke this bug:  it requires
setting up multiple threads making the very first calls into tempfile,
but the test suite uses tempfile several times before getting to
test_threadedtempfile.

Bugfix candidate.

to prevent mysterious errors at shutdown due to "os.unlink" turning into
"None.unlink".

Ensure that a tempfile can be closed any number of times without error.
This wasn't true on Windows.

SF patch #404564, Gregor Hoffleit.

giving it a slight facelift