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Eric Snow 2d26449b06
gh-94673: Always Finalize Static Builtin Types (#95153) 
Static builtin types are finalized by calling _PyStaticType_Dealloc().  Before this change, we were skipping finalizing such a type if it still had subtypes (i.e. its tp_subclasses hadn't been cleared yet).  The problem is that types hold several heap objects, which leak if we skip the type's finalization.  This change addresses that.

For context, there's an old comment (from e9e3eab0b8) that says the following:

   // If a type still has subtypes, it cannot be deallocated.
   // A subtype can inherit attributes and methods of its parent type,
   // and a type must no longer be used once it's deallocated.

However, it isn't clear that is actually still true.  Clearing tp_dict should mean it isn't a problem.

Furthermore, the only subtypes that might still be around come from extension modules that didn't clean them up when unloaded (i.e. extensions that do not implement multi-phase initialization, AKA PEP 489).  Those objects are already leaking, so this change doesn't change anything in that regard.  Instead, this change means more objects gets cleaned up that before.
2022-07-25 14:23:41 -06:00
..
clinic gh-91102: Port 8-argument _warnings.warn_explicit to Argument Clinic (#92891) 2022-07-20 22:24:51 +02:00
deepfreeze bpo-45696: Deep-freeze selected modules (GH-29118) 2021-11-10 18:01:53 -08:00
frozen_modules bpo-45020: Drop the frozen .h files from the repo. (gh-28392) 2021-09-16 14:20:52 -06:00
_warnings.c gh-91102: Port 8-argument _warnings.warn_explicit to Argument Clinic (#92891) 2022-07-20 22:24:51 +02:00
adaptive.md Update adaptive.md for inline caching (GH-31817) 2022-03-11 14:29:10 +00:00
asdl.c bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933) 2021-03-23 20:47:40 +01:00
ast.c gh-92597: Improve error message for AST nodes with invalid ranges (GH-93398) 2022-06-01 13:51:17 +01:00
ast_opt.c bpo-45995: add "z" format specifer to coerce negative 0 to zero (GH-30049) 2022-04-11 15:34:18 +01:00
ast_unparse.c bpo-43224: Implement PEP 646 grammar changes (GH-31018) 2022-03-26 09:55:35 -07:00
bltinmodule.c GH-90230: Add stats to breakdown the origin of calls to PyEval_EvalFrame (GH-93284) 2022-05-27 16:31:41 +01:00
bootstrap_hash.c bpo-46303: Move fileutils.h private functions to internal C API (GH-30484) 2022-01-11 11:56:16 +01:00
ceval.c GH-95113: Don't use EXTENDED_ARG_QUICK in unquickened code (GH-95121) 2022-07-22 11:04:20 -07:00
ceval_gil.h bpo-40514: Drop EXPERIMENTAL_ISOLATED_SUBINTERPRETERS (gh-93185) 2022-05-27 17:38:01 -06:00
codecs.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
compile.c GH-94036: Fix more attribute location quirks (GH-95028) 2022-07-22 13:13:16 -07:00
condvar.h gh-74953: _PyThread_cond_after() uses _PyTime_t (#94056) 2022-06-21 15:45:49 +02:00
context.c Add more stats for freelist use and allocations. (GH-92211) 2022-05-03 16:40:24 -06:00
dtoa.c bpo-45412: Add _PY_SHORT_FLOAT_REPR macro (GH-31171) 2022-02-23 18:16:23 +01:00
dup2.c bpo-32150: Expand tabs to spaces in C files. (#4583) 2017-11-28 17:56:10 +02:00
dynamic_annotations.c bpo-32241: Add the const qualifire to declarations of umodifiable strings. (#4748) 2017-12-12 13:55:04 +02:00
dynload_hpux.c bpo-44959: Add fallback to extension modules with '.sl' suffix on HP-UX (GH-27857) 2021-09-08 14:43:00 +02:00
dynload_shlib.c bpo-43895: Remove an unnecessary cache of shared object handles (GH-25487) 2021-07-07 16:26:06 -07:00
dynload_stub.c Issue #13959: Re-implement imp.get_suffixes() in Lib/imp.py. 2012-05-04 15:20:40 -04:00
dynload_win.c gh-92536: PEP 623: Remove wstr and legacy APIs from Unicode (GH-92537) 2022-05-12 14:48:38 +09:00
emscripten_signal.c bpo-47176: Interrupt handling for wasm32-emscripten builds without pthreads (GH-32209) 2022-04-03 22:58:52 +02:00
errors.c gh-94673: Add _PyStaticType_InitBuiltin() (#95152) 2022-07-25 12:47:31 -06:00
fileutils.c gh-93103: Py_DecodeLocale() uses _PyRuntime.preconfig (#93187) 2022-05-25 00:09:48 +02:00
formatter_unicode.c gh-89653: Use int type for Unicode kind (#92704) 2022-05-13 12:41:05 +02:00
frame.c GH-94262: Don't create frame objects for frames that aren't yet complete. (GH-94371) 2022-07-01 11:08:20 +01:00
frozen.c bpo-46748: Don't import <stdbool.h> in public headers (GH-31553) 2022-02-25 09:25:54 +01:00
frozenmain.c gh-93103: Parser uses PyConfig.parser_debug instead of Py_DebugFlag (#93106) 2022-05-24 22:35:08 +02:00
future.c bpo-38605: Revert making 'from __future__ import annotations' the default (GH-25490) 2021-04-21 12:41:19 +01:00
getargs.c gh-94930: skipitem() in getargs.c should return non-NULL on error (GH-94931) 2022-07-18 18:07:31 +03:00
getcompiler.c closes bpo-43278: remove unnecessary leading '\n' from COMPILER when build with GCC/Clang (GH-24606) 2021-02-25 20:24:21 -08:00
getcopyright.c Update copyright year to 2022. (GH-30335) 2022-01-02 12:08:48 -08:00
getopt.c gh-90300: split --help output into separate options (#30331) 2022-06-01 05:50:01 -04:00
getplatform.c bpo-32150: Expand tabs to spaces in C files. (#4583) 2017-11-28 17:56:10 +02:00
getversion.c bpo-43931: Export Python version as API data (GH-25577) 2021-12-09 17:52:05 -08:00
hamt.c GH-93207: Remove HAVE_STDARG_PROTOTYPES configure check for stdarg.h (#93215) 2022-05-27 13:30:45 +02:00
hashtable.c bpo-41061: Fix incorrect expressions in hashtable (GH-21028) 2020-06-22 00:41:48 -07:00
import.c gh-93741: Add private C API _PyImport_GetModuleAttrString() (GH-93742) 2022-06-14 07:15:26 +03:00
importdl.c bpo-47162: Add call trampoline to mitigate bad fpcasts on Emscripten (GH-32189) 2022-03-30 12:28:33 -07:00
importdl.h bpo-47162: Add call trampoline to mitigate bad fpcasts on Emscripten (GH-32189) 2022-03-30 12:28:33 -07:00
initconfig.c gh-91256: Ensure help text has the program name even before getpath is called (GH-94929) 2022-07-19 19:39:11 +01:00
makeopcodetargets.py gh-94216: add pseudo instructions to the dis/opcodes modules (GH-94241) 2022-07-01 15:33:35 +01:00
marshal.c gh-78214: marshal: Stabilize FLAG_REF usage (GH-8226) 2022-05-04 10:01:15 +09:00
modsupport.c bpo-1635741: Add PyModule_AddObjectRef() function (GH-23122) 2020-11-04 13:59:15 +01:00
mysnprintf.c bpo-36020: Require vsnprintf() to build Python (GH-20899) 2020-06-16 00:54:44 +02:00
mystrtoul.c bpo-35134: Add Include/cpython/longobject.h (GH-29044) 2021-10-19 02:04:52 +02:00
opcode_targets.h GH-94163: Add BINARY_SLICE and STORE_SLICE instructions. (GH-94168) 2022-06-27 12:24:23 +01:00
pathconfig.c gh-91985: Ensure in-tree builds override platstdlib_dir in every path calculation (GH-93641) 2022-06-16 22:41:57 +01:00
preconfig.c gh-77782: Deprecate global configuration variable (#93943) 2022-06-17 16:12:00 +02:00
pyarena.c bpo-43244: Remove the pyarena.h header (GH-25007) 2021-03-24 02:23:01 +01:00
pyctype.c Include files missed in r72044. 2009-04-27 20:54:42 +00:00
pyfpe.c bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507) 2022-01-13 09:46:04 +01:00
pyhash.c bpo-29410: Change the default hash algorithm to SipHash13. (GH-28752) 2021-10-10 17:29:46 +09:00
pylifecycle.c gh-94673: Always Finalize Static Builtin Types (#95153) 2022-07-25 14:23:41 -06:00
pymath.c bpo-45440: Remove pymath.c fallbacks (GH-28977) 2021-10-15 19:45:34 +02:00
pystate.c GH-93897: Store frame size in code object and de-opt if insufficient space on thread frame stack. (GH-93908) 2022-06-20 12:59:25 +01:00
pystrcmp.c bpo-41524: fix pointer bug in PyOS_mystr{n}icmp (GH-21845) 2020-08-27 14:45:25 +09:00
pystrhex.c gh-91768: C API no longer use "const PyObject*" type (#91769) 2022-04-21 22:07:19 +02:00
pystrtod.c bpo-45995: add "z" format specifer to coerce negative 0 to zero (GH-30049) 2022-04-11 15:34:18 +01:00
Python-ast.c gh-95185: Check recursion depth in the AST constructor (#95186) 2022-07-24 15:58:52 +01:00
Python-tokenize.c bpo-46613: Add PyType_GetModuleByDef to the public API (GH-31081) 2022-02-11 17:22:11 +01:00
pythonrun.c gh-92651: Remove the Include/token.h header file (#92652) 2022-05-11 23:22:50 +02:00
pytime.c gh-74953: Add _PyTime_FromMicrosecondsClamp() function (#93942) 2022-06-17 16:11:13 +02:00
README Issue #18093: Factor out the programs that embed the runtime 2014-07-25 21:52:14 +10:00
specialize.c GH-95113: Don't use EXTENDED_ARG_QUICK in unquickened code (GH-95121) 2022-07-22 11:04:20 -07:00
stdlib_module_names.h gh-93939: Build C extensions without setup.py (GH-94474) 2022-07-14 00:51:49 -07:00
structmember.c bpo-44655: Include the name of the type in unset __slots__ attribute errors (GH-27199) 2021-07-17 00:34:46 +01:00
suggestions.c gh-93937, C API: Move PyFrame_GetBack() to Python.h (#93938) 2022-06-19 12:02:33 +02:00
symtable.c bpo-46765: Replace Locally Cached Strings with Statically Initialized Objects (gh-31366) 2022-02-22 17:23:51 -07:00
sysmodule.c gh-94673: Add _PyStaticType_InitBuiltin() (#95152) 2022-07-25 12:47:31 -06:00
thread.c gh-94673: Add _PyStaticType_InitBuiltin() (#95152) 2022-07-25 12:47:31 -06:00
thread_nt.h gh-88750: On Windows, PyThread_acquire_lock() no longer checks for NULL (#92586) 2022-05-10 02:00:38 +02:00
thread_pthread.h gh-74953: _PyThread_cond_after() uses _PyTime_t (#94056) 2022-06-21 15:45:49 +02:00
traceback.c gh-93883: elide traceback indicators when possible (#93994) 2022-07-11 07:40:53 +01:00

README 

Miscellaneous source files for the main Python shared library