trampolining going on with the tp_new descriptor, where the inherited
PyType_GenericNew was overwritten with the much slower slot_tp_new
which would end up calling tp_new_wrapper which would eventually call
PyType_GenericNew.  Add a special case for this to update_one_slot().

XXX Hope there isn't a loophole in this.  I'll buy the first person to
point out a bug in the reasoning a beer.

Backport candidate (but I won't do it).

Closes SF Bug #592573 where inplace add mutated a UserString.
Added unittests to verify the bug is cleared.

tupleobject.c. Makes the code in iterobject.c cleaner
and speeds-up the general case by not checking for
tuples everytime.   SF Patch #592065.

rather than vereq().  While it was effectively testing regular strings, it
ignored the test() function argument when called by test_userstring.py.

the framework, the MacOSX apps and the unix tools.
Most of the hard work is done by Mac/OSX/Makefile.

Also, it should now be possible to install in a different directory,
such as /tmp/dist/Library/Frameworks, for building binary installers.
The fink crowd wanted this.

intern the string "__new__" so we can call PyObject_GetAttr() rather
than PyObject_GetAttrString().  (Though it's a mystery why slot_tp_new
is being called when a class doesn't define __new__.  I'll look into
that tomorrow.)

2.2 backport candidate (but I won't do it).

Good thing, too: some of the characters had been mangled by OS9->CVS->OSX
roundtrips.

a lot of work: it had to save and restore the current exception around
a call to lookup_maybe(), because that could fail in rare cases, and
most objects don't have a __del__ method, so the whole exercise was
usually a waste of time.  Changed this to cache the __del__ method in
the type object just like all other special methods, in a new slot
tp_del.  So now subtype_dealloc() can test whether tp_del is NULL and
skip the whole exercise if it is.  The new slot doesn't need a new
flag bit: subtype_dealloc() is only called if the type was dynamically
allocated by type_new(), so it's guaranteed to have all current slots.
Types defined in C cannot fill in tp_del with a function of their own,
so there's no corresponding "wrapper".  (That functionality is already
available through tp_dealloc.)

MacIntyre.  At least on OS/2, a subsequent connect() on a nonblocking
socket returns errno==EISCONN to indicate success.  This seems
harmless on Unix.

value; others were inconsistent in what to name the argument or return
value; a few module-global functions had "socket." in front of their
name, against convention.

least on OS/2 (see note on SF patch 555085 by A I MacIntyre) but
looks like the test *could* fail on any other platform too -- there's
no guarantee that recv() reads all data.

YA Cygwin module patch very similar to other patches
that I have submitted.  I tested under Cygwin and Red
Hat Linux 7.1.

to delete the reference to self._sock, and the regular destructor will
do that just fine.  This made some hacks in close() unnecessary.

The _fileobject class still has a __del__ method, because it must flush.

This is important IMO because httplib reads the headers this way.

observation that _rbuf could never have more than one string in it.
So make _rbuf a string.  The code branches for size<0 and size>=0
are completely separate now, both in read() and in readline().

I checked for tabs this time. :-)

to being a new-style class, to be more similar to the socket class
in the _socket module; it is now the same as the _socketobject class.
Added __slots__.  Added docstrings, copied from the real socket class
where possible.

The _fileobject class is now also a new-style class with __slots__
(though without docstrings).  The mode, name, softspace, bufsize and
closed attributes are properly supported (closed as a property; name
as a class attributes; the softspace, mode and bufsize as slots).

(Synched from pyunit CVS)

couple of minor edits elsewhere.

I believe I introduced this bug when I refactored the reversal code so
that the mergesort could use it too.  It's not a problem on the 2.2 branch.

correctly (the test at least succeed, but they don't test everything yet).

Also fix a performance problem in read(-1): in unbuffered mode, this would
read 1 byte at a time.  Since we're reading until EOF, that doesn't make
sense.  Use the default buffer size if _rbufsize is <= 1.

prints function and module names, which is more informative now that
we repeat some tests in slightly modified subclasses.

Add a test for read() until EOF.

Add test suites for line-buffered (bufsize==1) and a small custom
buffer size (bufsize==2).

Restructure testUnbufferedRead() somewhat to avoid a potentially
infinite loop.

destructor early.

subtype_dealloc().

When call_finalizer() failed, it would return without going through
the trashcan end macro, thereby unbalancing the trashcan nesting level
counter, and thereby defeating the test case (slottrash() in
test_descr.py).  This in turn meant that the assert in the GC_UNTRACK
macro wasn't triggered by the slottrash() test despite a bug in the
code: _PyTrash_destroy_chain() calls the dealloc routine with an
object that's untracked, and the assert in the GC_UNTRACK macro would
fail on this; but because of an earlier test that resurrects an
object, causing call_finalizer() to fail and the trashcan nesting
level to be unbalanced, so _PyTrash_destroy_chain() was never called.
Calling the slottrash() test in isolation *did* trigger the assert,
however.

So the fix is twofold: (1) call the GC_UnTrack() function instead of
the GC_UNTRACK macro, because the function is safe when the object is
already untracked; (2) when call_finalizer() fails, jump to a label
that exits through the trashcan end macro, keeping the trashcan
nesting balanced.

The -tt means modules that mix tabs and spaces will be rejected.
The -E refuses to believe Python options in the environment.

empty heap, since heap[0] raises the appropriate IndexError already.

is empty.

the weakreflist to NULL in the constructor and to fill the tp_flags
slot with Py_TPFLAGS_HAVE_WEAKREFS.  Closes SF bug 586583.

the classes' attribute list.