trailing whitespace.

Greatly updated news for 2.1c1 (!).

DO NOT CHECK ANYTHHING IN FROM NOW ON WITHOUT ASKING ME.

than from module pickletester.  Using the latter turned out to cause
the test to break when invoked as "import test.test_pickle" or "import
test.autotest".

OpenSSL versions beore 0.9.5.  This just is too experimental to be
worth it, especially since the user would have to do some severe
hacking of the Modules/Setup file to even enable the EGD code, and
without the EGD code it would always spit out a warning on some
systems -- even when socket.ssl() is not used.  Fixing that properly
is not my job; the EGD patch is clearly not so important that it
should hold up the 2.1 release.

PyTuple_New() could *conceivably* clear the dict, so move the test for
an empty dict after the tuple allocation.  It means that we waste time
allocating and deallocating a 2-tuple when the dict is empty, but who
cares.  It also means that when the dict is empty *and* there's no
memory to allocate a 2-tuple, we raise MemoryError, not KeyError --
but that may actually a good idea: if there's no room for a lousy
2-tuple, what are the chances that there's room for a KeyError
instance?

and reported to python-dev: because we were calling dict_resize() in
PyDict_Next(), and because GC's dict_traverse() uses PyDict_Next(),
and because PyTuple_New() can cause GC, and because dict_items() calls
PyTuple_New(), it was possible for dict_items() to have the dict
resized right under its nose.

The solution is convoluted, and touches several places: keys(),
values(), items(), popitem(), PyDict_Next(), and PyDict_SetItem().

There are two parts to it. First, we no longer call dict_resize() in
PyDict_Next(), which seems to solve the immediate problem.  But then
PyDict_SetItem() must have a different policy about when *it* calls
dict_resize(), because we want to guarantee (e.g. for an algorithm
that Jeremy uses in the compiler) that you can loop over a dict using
PyDict_Next() and make changes to the dict as long as those changes
are only value replacements for existing keys using PyDict_SetItem().
This is done by resizing *after* the insertion instead of before, and
by remembering the size before we insert the item, and if the size is
still the same, we don't bother to even check if we might need to
resize.  An additional detail is that if the dict starts out empty, we
must still resize it before the insertion.

That was the first part. :-)

The second part is to make keys(), values(), items(), and popitem()
safe against side effects on the dict caused by allocations, under the
assumption that if the GC can cause arbitrary Python code to run, it
can cause other threads to run, and it's not inconceivable that our
dict could be resized -- it would be insane to write code that relies
on this, but not all code is sane.

Now, I have this nagging feeling that the loops in lookdict probably
are blissfully assuming that doing a simple key comparison does not
change the dict's size.  This is not necessarily true (the keys could
be class instances after all).  But that's a battle for another day.

Reported by Juan M. Bello Rivas.

conflicts.

later.  This assumes that zlib.h has a line of the form

    #define ZLIB_VERSION "1.1.3"

This solves the problem where a zlib installation is found but it is
an older version -- this would break the build, while a better
solution is to simply ignore that zlib installation.

cut-and-paste copy of the seek() method on the _Subfile class, but it
didn't make one bit of sense: it sets self.pos, which is not used in
this class or its subclasses, and it uses self.start and self.stop,
which aren't defined on this class or its subclasses.  This is purely
my own fault -- I added this in rev 1.4 and apparently never tried to
use it.  Since it's not documented, and of very questionable use given
that there's no tell(), I'm ripping it out.

This resolves SF bug 416199 by Andrew Dalke: mailbox.py seek problems.

set to 'en' there -- Windows does not understand the 'en_US' locale.
The test succeeds there.

Norwitz's PyChecker.

NotImplementedError) found by Neil Norwitz's PyChecker.

found by Neil Norwitz's PyChecker.

Neil Norwitz's PyChecker.

Neil Norwitz's PyChecker.

- Removed unused variable 'opts' in TestProgram.__init__ (thanks to PyChecker)

needed on some platforms (e.g. Solaris 8) when the test is run twice
in quick succession.

clobber".  This is done so that after a "make clean", setup.py will
also recompile all extensions.

ZipFile.close() method that should be part of the preceding 'if'
block.  On some platforms (Mark noticed this on FreeBSD 4.2) doing a
flush() on a file open for reading is not allowed.

argument "wb", while the only valid modes are "r", "w" or "a".  Fix
this by changing the mode to "w".

failing later when Python is compiled without threading but a failing
'threading' module can be imported due to an earlier (caught) attempt.

device to use, skip this test instead of allowing an error to occur
when we attempt to play sound on the absent device.

Verified by Mark Favas.

like the one in the BeOpen license (and similar to the one in the CNRI
license, but with the "click-to-accept" part elided).

always:

- #undef HAVE_CONFIG_H (because otherwise chardefs.h tries to include
  strings.h)

- #include readline.h and history.h

and we never declare any readline function prototypes ourselves.

This makes it compile with readline 4.2, albeit with a few warnings.
Some of the remaining warnings are about completion_matches(), which
is renamed to rl_completion_matches().

I've tested it with various other versions, from 2.0 up, and they all
seem to work (some with warnings) -- but only on Red Hat Linux 6.2.

Fixing the warnings for readline 4.2 would break compatibility with
3.0 (and maybe even earlier versions), and readline doesn't seem to
have a way to test for its version at compile time, so I'd rather
leave the warnings in than break compilation with older versions.

versions.

Update docs for PyDict_Next() based on the most recent changes to the
dictionary code.

This closes SF patch #409864.

problem reported by Neil Schemenauer on python-dev on 4/12/01, wth
subject "Problem with SSL and socketmodule on Debian Potato?".

It's tentative because Moshe objected, but Martin rebutted, and Moshe
seems unavailable for comments.

(Note that with OpenSSL 0.9.6a, I get a lot of compilation warnings
for socketmodule.c -- I'm assuming I can safely ignore these until 2.1
is released.)