it's 2.2 before the first alpha release.

PyChecker.

variables reported by PyChecker.

__togglegentype(): PyChecker accurately reported that the variable
__gentypevar was unused -- actually this whole method is currently
unused so comment it out.

reported by PyChecker.

this tool was last touched!  Update some of the introductory material
and bump the version to 1.1.

bite people interested in 1.5.2 compatibility.

macro.

Refactored do_cmd_versionadded() and do_cmd_versionchanged() to do most
of the work in a helper function, with the do_cmd_*() wrappers just supplying
a portion of the replacement text.

    the versioning information, similar to \versionchanged.

The changes cause compilation failures in any file in the Python
installation lib directory to cause the install to fail.  It looks
like compileall.py intended to behave this way, but a change to
py_compile.py and a separate bug defeated it.

Fixes SF bug #412436

This change affects the test suite, which contains several files that
contain intentional errors.  The solution is to extend compileall.py
with the ability to skip compilation of selected files.

NB compileall.py is changed so that compile_dir() returns success only
if all recursive calls to compile_dir() also check success.

The changes cause compilation failures in any file in the Python
installation lib directory to cause the install to fail.  It looks
like compileall.py intended to behave this way, but a change to
py_compile.py and a separate bug defeated it.

Fixes SF bug #412436

This change affects the test suite, which contains several files that
contain intentional errors.  The solution is to extend compileall.py
with the ability to skip compilation of selected files.

In the test suite, rename nocaret.py and test_future[3..7].py to start
with badsyntax_nocaret.py and badsyntax_future[3..7].py.  Update the
makefile to skip compilation of these files.  Update the tests to use
the name names for imports.

NB compileall.py is changed so that compile_dir() returns success only
if all recursive calls to compile_dir() also check success.

Hopefully this is the last checkin for 2.1!

Import OPT_ symbols from _symtable.
Define has_exec() and has_import_star().

file was deleted by a previous call to the visitor function.

This used to be the behavior in 1.5.2 and before, but a patch to avoid
making two stat() calls accidentally broke this in 2.0.

Moshe, this would be a good one for 2.0.1 too!

recently reported bug; also exposed some other bugs in the implementation.

    parameter.

Weak*Dictionary.get():  Make the second parameter optional.

WeakKeyDictionary.has_key(), .keys():  Make these actually work!

its first return statement returns a single value while its caller
always expects it to return a tuple of two items.  Fix this by
returning (s, 0) instead.

This won't make the locale test on Irix succeed, but now it will fail
because of a bug in the platform's en_US locale rather than because of
a bug in the locale module.

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.