Neal.

Add directory which contains known ref leaks.  Some of these are likely to be system dependent (like test_gestalt).

print the status so far and suppress printing the exception (but still exit).

Clarify intended use of set_context() and check errors at all call sites.

Replace the toy arena implementation with a real one,
based on allocating 8K chunks of memory by default.

from Tools/compiler/ast.txt are not used anywhere else in asttable.txt.
So remove "\&".

 - IMPORT_NAME takes an extra argument from the stack: the relativeness of
   the import. Only passed to __import__ when it's not -1.

 - __import__() takes an optional 5th argument for the same thing; it
   __defaults to -1 (old semantics: try relative, then absolute)

 - 'from . import name' imports name (be it module or regular attribute)
   from the current module's *package*. Likewise, 'from .module import name'
   will import name from a sibling to the current module.

 - Importing from outside a package is not allowed; 'from . import sys' in a
   toplevel module will not work, nor will 'from .. import sys' in a
   (single-level) package.

 - 'from __future__ import absolute_import' will turn on the new semantics
   for import and from-import: imports will be absolute, except for
   from-import with dots.

Includes tests for regular imports and importhooks, parser changes and a
NEWS item, but no compiler-package changes or documentation changes.

Sigh -- we really should have one place for all opcode metadata.

Jeremy, please review!

exceptions.  This was triggered when 'warnings' had a filter set to "error"
that caught the string exception deprecation warning.

In a Windows debug build, trying to open a file using
an empty string as the name causes assertion death
inside MS's C runtime code.  We probably need to worm
around that in many places.  I'm worming around it here
to stop the new test_with.py from assert-dying in the
Windows debug build (it calls compile() with an empty
string for "the file name", which indirectly leads to
C-level code in Python trying to fopen("", "r")).

This was started by Mike Bland and completed by Guido
(with help from Neal).

This still needs a __future__ statement added;
Thomas is working on Michael's patch for that aspect.

There's a small amount of code cleanup and refactoring
in ast.c, compile.c and ceval.c (I fixed the lltrace
behavior when EXT_POP is used -- however I had to make
lltrace a static global).

be complete when when checking types.

Yield cannot be tested outside a function, so add a comment to that effect.

the interpreter in 2.5 .

(Armin's SF bug report).
d = {}
d[1,] = 1
Now handled correctly