the case of __del__ resurrecting an object.
This makes the apparent reference leaks in test_descr go away (which I
expected) and also kills off those in test_gc (which is more surprising
but less so once you actually think about it a bit).

connect error

comma expression in listpop() that was being returned.  Still essentially
unused (as it is meant to be), but now the compiler thinks it is worth
*something* by having it incremented.

- fix broken assert statement; should just raise

have differing refcount semantics.  If anyone sees a prettier way to
acheive the same ends, then please go for it.

I think this is the first time I've ever used Py_XINCREF.

(or to whatever the 'insert' method chose to return).

must have annoyed me at some point.

* Fixes an incorrect variable in a PyDict_CheckExact.
* Allow general mapping locals arguments for the execfile() function
  and exec statement.
* Add tests.

"@ seems the syntax that everybody can hate equally"
Implementation by Mark Russell, from SF #979728.

after a failed import.

This is the last checkin in the "change import failure semantics" series.

    test_failing_import_sticks -- if an import raises an exception,
        ensure that trying to import it again continues raising exceptions
    test_failing_reload -- if a module loads OK, but a reload raises an
        exception, ensure that the module is still in sys.modules, and
        that its __dict__ reflects as much of the reload attempt as
        succeeded.  That doesn't seem like sane semantics, but it is
        backward-compatible semantics <wink>.

getting left beyind in sys.modules.

PyImport_ReloadModule():  restore the module to sys.modules in error cases.
load_package():  semantic-neutral refactoring from an earlier stab at
                 this patch; giving it a common error exit made the code
                 easier to follow, so retaining that part.
_RemoveModule():  new little utility to delete a key from sys.modules.

in failure cases, incompletely initalized module objects are no longer
left behind in sys.modules.

already correct, so not changed here.

Backport candidate.

Backport candidate.