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Guido van Rossum 1c45073aba Keep track of a type's subclasses (subtypes), in tp_subclasses, which 
is a list of weak references to types (new-style classes).  Make this
accessible to Python as the function __subclasses__ which returns a
list of types -- we don't want Python programmers to be able to
manipulate the raw list.

In order to make this possible, I also had to add weak reference
support to type objects.

This will eventually be used together with a trap on attribute
assignment for dynamic classes for a major speed-up without losing the
dynamic properties of types: when a __foo__ method is added to a
class, the class and all its subclasses will get an appropriate tp_foo
slot function.
 		2001-10-08 15:18:27 +00:00
..
Python.h Include the weakref object interface. 2001-10-05 21:55:19 +00:00
abstract.h Generalize operator.indexOf (PySequence_Index) to work with any 2001-09-08 04:00:12 +00:00
bitset.h REMOVED all CWI, CNRI and BeOpen copyright markings. 2000-09-01 23:29:29 +00:00
bufferobject.h REMOVED all CWI, CNRI and BeOpen copyright markings. 2000-09-01 23:29:29 +00:00
cStringIO.h Cast the result of xxxPyCObject_Import to PycStringIO_CAPI*. 2001-06-09 07:59:43 +00:00
cellobject.h PEP 227 implementation 2001-01-25 20:04:14 +00:00
ceval.h Merge of descr-branch back into trunk. 2001-08-02 04:15:00 +00:00
classobject.h Add PyMethod_Function(), PyMethod_Self(), PyMethod_Class() back. 2001-09-05 22:52:50 +00:00
cobject.h REMOVED all CWI, CNRI and BeOpen copyright markings. 2000-09-01 23:29:29 +00:00
codecs.h Changing the CNRI copyright notice according to CNRI's instructions. 2000-08-03 16:24:25 +00:00
compile.h Refactor future feature handling 2001-08-10 21:38:04 +00:00
complexobject.h Again perhaps the end of [#460020] bug or feature: unicode() and subclasses. 2001-09-12 19:12:49 +00:00
descrobject.h *EXPERIMENTAL* speedup of slot_sq_item. This sped up the following 2001-10-03 12:09:30 +00:00
dictobject.h Add PyDict_Merge(a, b, override): 2001-08-10 20:28:28 +00:00
errcode.h REMOVED all CWI, CNRI and BeOpen copyright markings. 2000-09-01 23:29:29 +00:00
eval.h Merge of descr-branch back into trunk. 2001-08-02 04:15:00 +00:00
fileobject.h SF bug [#460467] file objects should be subclassable. 2001-09-13 05:38:56 +00:00
floatobject.h More for SF bug [#460020] bug or feature: unicode() and subclasses 2001-09-10 21:28:20 +00:00
frameobject.h Make frames a PyVarObject instead of a PyObject. 2001-08-29 23:45:25 +00:00
funcobject.h Merge of descr-branch back into trunk. 2001-08-02 04:15:00 +00:00
graminit.h Merging the gen-branch into the main line, at Guido's direction. Yay! 2001-06-18 22:08:13 +00:00
grammar.h REMOVED all CWI, CNRI and BeOpen copyright markings. 2000-09-01 23:29:29 +00:00
import.h REMOVED all CWI, CNRI and BeOpen copyright markings. 2000-09-01 23:29:29 +00:00
intobject.h SF bug #460020: bug or feature: unicode() and subclasses. 2001-09-10 20:52:51 +00:00
intrcheck.h REMOVED all CWI, CNRI and BeOpen copyright markings. 2000-09-01 23:29:29 +00:00
iterobject.h Mondo changes to the iterator stuff, without changing how Python code 2001-04-23 14:08:49 +00:00
listobject.h Introduced the oddly-missing PyList_CheckExact(), and used it to replace 2001-10-05 20:41:38 +00:00
longintrepr.h SF bug #460020: bug or feature: unicode() and subclasses. 2001-09-10 20:52:51 +00:00
longobject.h SF bug #460020: bug or feature: unicode() and subclasses. 2001-09-10 20:52:51 +00:00
marshal.h It's unclear whether PyMarshal_XXX() are part of the public or private API. 2001-01-28 00:27:39 +00:00
metagrammar.h REMOVED all CWI, CNRI and BeOpen copyright markings. 2000-09-01 23:29:29 +00:00
methodobject.h Remove much dead code from ceval.c 2001-08-12 21:52:24 +00:00
modsupport.h Merge of descr-branch back into trunk. 2001-08-02 04:15:00 +00:00
moduleobject.h SF bug [#460467] file objects should be subclassable. 2001-09-13 05:38:56 +00:00
node.h REMOVED all CWI, CNRI and BeOpen copyright markings. 2000-09-01 23:29:29 +00:00
object.h Keep track of a type's subclasses (subtypes), in tp_subclasses, which 2001-10-08 15:18:27 +00:00
objimpl.h Guido suggests, and I agree, to insist that SIZEOF_VOID_P be a power of 2. 2001-10-07 03:54:51 +00:00
opcode.h Implement PEP 238 in its (almost) full glory. 2001-08-08 05:00:18 +00:00
osdefs.h RISCOS patch by dschwertberger 2001-03-02 06:10:17 +00:00
parsetok.h Ugly. A pile of new xxxFlags() functions, to communicate to the parser 2001-07-16 05:37:24 +00:00
patchlevel.h PY_RELEASE_SERIAL => 4 2001-09-28 17:15:23 +00:00
pgenheaders.h Repair more now-obsolete references to config.h. 2001-07-26 21:34:59 +00:00
py_curses.h Added header file for C API exported by _cursesmodule.c 2000-12-22 21:51:10 +00:00
pydebug.h Add warning mode for classic division, almost exactly as specified in 2001-08-31 17:40:15 +00:00
pyerrors.h weakref.ReferenceError becomes a built-in exception now that weak ref objects 2001-10-05 21:50:08 +00:00
pyfpe.h Some patches to Lee Busby's fpectl mods that accidentally didn't make it 1997-10-20 23:50:01 +00:00
pygetopt.h Move our own getopt() implementation to _PyOS_GetOpt(), and use it 2000-11-03 08:18:37 +00:00
pymactoolbox.h Prototype for PyMac_GetFullPathname(). 2001-09-10 22:09:30 +00:00
pymem.h Repair more now-obsolete references to config.h. 2001-07-26 21:34:59 +00:00
pyport.h SF patch [#466353] Py_HUGE_VAL on BeOS for Intel. 2001-10-01 19:50:06 +00:00
pystate.h Add a low-level API to access interpreters, for David Beazley. 2001-07-19 12:19:27 +00:00
pythonrun.h Add warning mode for classic division, almost exactly as specified in 2001-08-31 17:40:15 +00:00
pythread.h REMOVED all CWI, CNRI and BeOpen copyright markings. 2000-09-01 23:29:29 +00:00
rangeobject.h Re-add 'advanced' xrange features, adding DeprecationWarnings as discussed 2001-07-09 12:30:54 +00:00
sliceobject.h ANSI-fication and Py_PROTO extermination. 2000-07-09 00:55:06 +00:00
stringobject.h More on SF bug [#460020] bug or feature: unicode() and subclasses. 2001-09-11 01:41:59 +00:00
structmember.h Add optional docstrings to member descriptors. For backwards 2001-09-20 20:46:19 +00:00
symtable.h Remove st_nested_scopes from struct symtable, 2001-08-11 21:51:24 +00:00
sysmodule.h Add declarations for PySys_ResetWarnOptions() and 2000-12-15 22:01:39 +00:00
token.h Implement PEP 238 in its (almost) full glory. 2001-08-08 05:00:18 +00:00
traceback.h REMOVED all CWI, CNRI and BeOpen copyright markings. 2000-09-01 23:29:29 +00:00
tupleobject.h More on SF bug [#460020] bug or feature: unicode() and subclasses. 2001-09-10 23:37:46 +00:00
ucnhash.h refactored the unicodeobject/ucnhash interface, to hide the 2001-01-19 09:45:02 +00:00
unicodeobject.h Patch #435971: UTF-7 codec by Brian Quinlan. 2001-09-20 10:35:46 +00:00
weakrefobject.h Remove bogus declaration. 2001-10-05 22:06:45 +00:00