Commit Graph

4011 Commits

Author SHA1 Message Date
Irit Katriel 789a6af29f
bpo-44890: Fix AMD build error (GH-27740) 2021-08-12 15:20:44 +01:00
Irit Katriel 8ac0886091
bpo-44890: collect specialization stats if Py_DEBUG (GH-27731) 2021-08-12 12:15:06 +01:00
Mark Shannon 9816777861
Classify specialization failures. Provides more useful stats, with lower overhead. (GH-27701) 2021-08-10 14:53:05 +01:00
Mark Shannon ac75f6bdd4
bpo-44826: Specialize STORE_ATTR (GH-27590)
* Generalize cache names for LOAD_ATTR to allow store and delete specializations.

* Factor out specialization of attribute dictionary access.

* Specialize STORE_ATTR.
2021-08-09 10:40:21 +01:00
Mark Shannon cee67fa661
bpo-44821: Eagerly assign __dict__ for new objects. (GH-27589) 2021-08-04 16:41:14 +01:00
Mark Shannon c83919bd63
Add option to write specialization stats to files and script to summarize. (GH-27575)
* Add option to write stats to random file in a directory.

* Add script to summarize stats.
2021-08-04 11:39:52 +01:00
Mark Shannon 2116909b3e
Minor fixes to specialization stats. (GH-27457)
* Use class, not value for fail stats for BINARY_SUBSCR.

* Fix counts for unquickened instructions.
2021-07-29 20:50:03 +01:00
Irit Katriel ddd1c418c0
bpo-44725 : expose specialization stats in python (GH-27192) 2021-07-29 17:26:53 +01:00
Inada Naoki ce5e1a6809
bpo-41103: Resurrect the old buffer protocol. (GH-27437)
Revert "bpo-41103: Remove old buffer protocol support (#21117)"

This reverts commit 6f8a6ee59c.
2021-07-29 12:46:47 +02:00
Hai Shi a390ebea17
bpo-42035: Add a PyType_GetName() to get type's short name. (GH-23903) 2021-07-29 09:57:02 +02:00
Geoffrey Thomas 196998e220
closes bpo-44751: Move crypt.h include from public header to _cryptmodule (GH-27394)
Automerge-Triggered-By: GH:benjaminp
2021-07-27 15:58:12 -07:00
Mark Shannon ae0a2b7562
bpo-44590: Lazily allocate frame objects (GH-27077)
* Convert "specials" array to InterpreterFrame struct, adding f_lasti, f_state and other non-debug FrameObject fields to it.

* Refactor, calls pushing the call to the interpreter upward toward _PyEval_Vector.

* Compute f_back when on thread stack, only filling in value when frame object outlives stack invocation.

* Move ownership of InterpreterFrame in generator from frame object to generator object.

* Do not create frame objects for Python calls.

* Do not create frame objects for generators.
2021-07-26 11:22:16 +01:00
Petr Viktorin a4760cc32d
bpo-42747: Remove Py_TPFLAGS_HAVE_AM_SEND and make Py_TPFLAGS_HAVE_VERSION_TAG no-op (GH-27260)
* Remove code that checks Py_TPFLAGS_HAVE_VERSION_TAG
    
    The field is always present in the type struct, as explained
    in the added comment.

* Remove Py_TPFLAGS_HAVE_AM_SEND
    
    The flag is not needed, and since it was added in 3.10 it can be removed now.
2021-07-23 06:21:11 -07:00
Serhiy Storchaka 8f50f44592
bpo-44654: Do not export the union type related symbols (GH-27223) 2021-07-18 15:55:20 +03:00
Serhiy Storchaka 0fd27375ca
bpo-44654: Refactor and clean up the union type implementation (GH-27196) 2021-07-17 22:44:10 +03:00
Ken Jin e9cd47d0e5
Remove legacy opcache structs (GH-27164) 2021-07-17 00:49:35 +09:00
Batuhan Taskaya 9af34c9351
bpo-20201: variadic arguments support for AC (GH-18609)
Implement support for `*args` in AC, and port `print()` to use it.
2021-07-16 18:43:02 +03:00
Irit Katriel 641345d636
bpo-26280: Port BINARY_SUBSCR to PEP 659 adaptive interpreter (GH-27043) 2021-07-15 13:13:12 +01:00
Mark Shannon 9487a17e3c
bpo-44207: Add an internal version number to function objects. (GH-27078) 2021-07-12 10:01:01 +01:00
Ammar Askar 4823d9a512
bpo-43950: Add option to opt-out of PEP-657 (GH-27023)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
Co-authored-by: Batuhan Taskaya <batuhanosmantaskaya@gmail.com>
Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
2021-07-07 20:07:12 +01:00
Gabriele N. Tornetta 2f180ce2cb
bpo-44530: Add co_qualname field to PyCodeObject (GH-26941) 2021-07-07 12:21:51 +01:00
Yurii Karabas c45fa1a5d9
bpo-44490: Add __parameters__ and __getitem__ to types.Union (GH-26980)
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Co-authored-by: Guido van Rossum <gvanrossum@gmail.com>
2021-07-06 11:04:33 -07:00
Ammar Askar 5644c7b3ff
bpo-43950: Print columns in tracebacks (PEP 657) (GH-26958)
The traceback.c and traceback.py mechanisms now utilize the newly added code.co_positions and PyCode_Addr2Location
to print carets on the specific expressions involved in a traceback.

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
Co-authored-by: Batuhan Taskaya <batuhanosmantaskaya@gmail.com>
2021-07-05 00:14:33 +01:00
Pablo Galindo 98eee94421
bpo-43950: Add code.co_positions (PEP 657) (GH-26955)
This PR is part of PEP 657 and augments the compiler to emit ending
line numbers as well as starting and ending columns from the AST
into compiled code objects. This allows bytecodes to be correlated
to the exact source code ranges that generated them.

This information is made available through the following public APIs:

* The `co_positions` method on code objects.
* The C API function `PyCode_Addr2Location`.

Co-authored-by: Batuhan Taskaya <isidentical@gmail.com>
Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
2021-07-02 15:10:11 +01:00
Victor Stinner 818628c2da
bpo-44531: Add _PyType_AllocNoTrack() function (GH-26947)
Add an internal _PyType_AllocNoTrack() function to allocate an object
without tracking it in the GC.

Modify dict_new() to use _PyType_AllocNoTrack(): dict subclasses are
now only tracked once all PyDictObject members are initialized.
Calling _PyObject_GC_UNTRACK() is no longer needed for the dict type.

Similar change in tuple_subtype_new() for tuple subclasses.

Replace tuple_gc_track() with _PyObject_GC_TRACK().
2021-07-01 02:30:46 +02:00
Batuhan Taskaya 1b28187a0e
bpo-44313: generate LOAD_ATTR/CALL_FUNCTION for top-level imported objects (GH-26677) 2021-06-30 23:53:36 +01:00
Guido van Rossum 769d7d0c66
bpo-43693 Get rid of CO_NOFREE -- it's unused (GH-26839)
All uses of this flag are either setting it
or in doc or tests for it. So we should be
able to get rid of it completely.
2021-06-23 09:51:44 -07:00
Victor Stinner db532a0999
bpo-39947: Remove old private trashcan C API functions (GH-26869)
Remove 4 C API private trashcan functions which were only kept for
the backward compatibility of the stable ABI with Python 3.8 and
older, since the trashcan API was not usable with the limited C API
on Python 3.8 and older. The trashcan API was excluded from the
limited C API in Python 3.9.

Removed functions:

* _PyTrash_deposit_object()
* _PyTrash_destroy_chain()
* _PyTrash_thread_deposit_object()
* _PyTrash_thread_destroy_chain()

The trashcan C API was never usable with the limited C API, since old
trashcan macros accessed directly PyThreadState members like
"_tstate->trash_delete_nesting", whereas the PyThreadState structure
is opaque in the limited C API.

Exclude also the PyTrash_UNWIND_LEVEL constant from the C API.

The trashcan C API was modified in Python 3.9 by commit
38965ec541 and in Python 3.10 by commit
ed1a5a5bac to hide implementation
details.
2021-06-23 15:51:47 +02:00
Russell Keith-Magee 92c2e91580
bpo-44458: Ensure BUFFER_BLOCK_SIZE symbol is statically allocated. (GH-26808)
* bpo-44458: Ensure BUFFER_BLOCK_SIZE symbol is statically allocated.
2021-06-21 23:36:36 -07:00
Guido van Rossum 355f5dd36a
bpo-43693: Turn localspluskinds into an object (GH-26749)
Managing it as a bare pointer to malloc'ed bytes is just too awkward in a few places.
2021-06-21 13:53:04 -07:00
Mark Shannon fb68791a26
bpo-44337: Improve LOAD_ATTR specialization (GH-26759)
* Specialize obj.__class__ with LOAD_ATTR_SLOT

* Specialize instance attribute lookup with attribute on class, provided attribute on class is not an overriding descriptor.

* Add stat for how many times the unquickened instruction has executed.
2021-06-21 11:49:21 +01:00
Mark Shannon 0982ded179
bpo-44032: Move pointer to code object from frame-object to frame specials array. (GH-26771) 2021-06-18 11:00:29 +01:00
Eric Snow ac38a9f2df
bpo-43693: Eliminate unused "fast locals". (gh-26587)
Currently, if an arg value escapes (into the closure for an inner function) we end up allocating two indices in the fast locals even though only one gets used.  Additionally, using the lower index would be better in some cases, such as with no-arg `super()`.  To address this, we update the compiler to fix the offsets so each variable only gets one "fast local".  As a consequence, now some cell offsets are interspersed with the locals (only when an arg escapes to an inner function).

https://bugs.python.org/issue43693
2021-06-15 16:35:25 -06:00
Mark Shannon 8ebd9447e9
Add extra stats for attribute misses (GH-26732) 2021-06-15 13:01:42 +01:00
Mark Shannon eecbc7c390
bpo-44338: Port LOAD_GLOBAL to PEP 659 adaptive interpreter (GH-26638)
* Add specializations of LOAD_GLOBAL.

* Add more stats.

* Remove old opcache; it is no longer used.

* Add NEWS
2021-06-14 11:04:09 +01:00
Serhiy Storchaka be8b631b7a
Add more const modifiers. (GH-26691) 2021-06-12 16:11:59 +03:00
Victor Stinner 304dfec8d3
bpo-44378: Fix a compiler warning in Py_IS_TYPE() (GH-26644)
Py_IS_TYPE() no longer uses Py_TYPE() to avoid a compiler warning:
no longer cast "const PyObject*" to "PyObject*".
2021-06-11 10:35:36 +02:00
Mark Shannon 31aa0dbff4
bpo-44363: Get test_capi passing with address sanitizer (GH-26639) 2021-06-10 12:37:22 +01:00
Mark Shannon 54cb63863f
bpo-44348: Move trace-info to thread-state (GH-26623)
* Move trace-info to thread state.

* Correct output for pdb when turning on tracing in middle of line
2021-06-10 08:46:59 +01:00
Mark Shannon e117c02837
bpo-44337: Port LOAD_ATTR to PEP 659 adaptive interpreter (GH-26595)
* Specialize LOAD_ATTR with  LOAD_ATTR_SLOT and LOAD_ATTR_SPLIT_KEYS

* Move dict-common.h to internal/pycore_dict.h

* Add LOAD_ATTR_WITH_HINT specialized opcode.

* Quicken in function if loopy

* Specialize LOAD_ATTR for module attributes.

* Add specialization stats
2021-06-10 08:46:01 +01:00
Eric Snow 3e1c7167d8
bpo-43693: Un-revert commit f3fa63e. (#26609)
This was reverted in GH-26596 (commit 6d518bb) due to some bad memory accesses.

* Add the MAKE_CELL opcode. (gh-26396)

The memory accesses have been fixed.

https://bugs.python.org/issue43693
2021-06-08 16:01:34 -06:00
Pablo Galindo 3fe921cd49
Revert "bpo-43693: Add the MAKE_CELL opcode and interleave fast locals offsets. (gh-26396)" (GH-26597)
This reverts commit 631f9938b1.
2021-06-08 13:17:55 +01:00
Pablo Galindo 6d518bb3a1
bpo-44348: Revert "bpo-39573: Py_TYPE becomes a static inline function (GH-26493)" (GH-26596)
This reverts commit f3fa63ec75 as is
causing crashes in some Windows tests in the buildbots.
2021-06-08 12:24:40 +01:00
Eric Snow 165c884154
bpo-43693: Silence some compiler warnings. (gh-26588)
The plan is to eventually make PyCodeObject opaque in the public C-API, with the full struct moved to Include/internal/pycore_code.h. _PyLocalsPlusKinds and _PyLocalsPlusKind started off there but were needed on PyCodeObject, hence the duplication. This led to warnings with some compilers. (Apparently it does not trigger a warning on my install of GCC.)

This change eliminates the superfluous typedef.

https://bugs.python.org/issue43693
2021-06-07 17:58:38 -06:00
Eric Snow 631f9938b1
bpo-43693: Add the MAKE_CELL opcode and interleave fast locals offsets. (gh-26396)
This moves logic out of the frame initialization code and into the compiler and eval loop.  Doing so simplifies the runtime code and allows us to optimize it better.

https://bugs.python.org/issue43693
2021-06-07 16:52:00 -06:00
Eric Snow 2ab27c4af4
bpo-43693: Un-revert commits 2c1e258 and b2bf2bc. (gh-26577)
These were reverted in gh-26530 (commit 17c4edc) due to refleaks.

* 2c1e258 - Compute deref offsets in compiler (gh-25152)
* b2bf2bc - Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)

This change fixes the refleaks.

https://bugs.python.org/issue43693
2021-06-07 12:22:26 -06:00
Mark Shannon 001eb520b5
bpo-44187: Quickening infrastructure (GH-26264)
* Add co_firstinstr field to code object.

* Implement barebones quickening.

* Use non-quickened bytecode when tracing.

* Add NEWS item

* Add new file to Windows build.

* Don't specialize instructions with EXTENDED_ARG.
2021-06-07 18:38:06 +01:00
Pablo Galindo 17c4edc4e0
bpo-43693: Revert commits 2c1e2583fd and b2bf2bc1ec (GH-26530)
* Revert "bpo-43693: Compute deref offsets in compiler (gh-25152)"

This reverts commit b2bf2bc1ec.

* Revert "bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)"

This reverts commit 2c1e2583fd.

These two commits are breaking the refleak buildbots.
2021-06-04 17:51:05 +01:00
Victor Stinner f3fa63ec75
bpo-39573: Py_TYPE becomes a static inline function (GH-26493)
Convert the Py_TYPE() and Py_SIZE() macros to static inline
functions. The Py_SET_TYPE() and Py_SET_SIZE() functions must now be
used to set an object type and size.
2021-06-03 18:42:59 +02:00
Eric Snow 2c1e2583fd
bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)
A number of places in the code base (notably ceval.c and frameobject.c) rely on mapping variable names to indices in the frame "locals plus" array (AKA fast locals), and thus opargs.  Currently the compiler indirectly encodes that information on the code object as the tuples co_varnames, co_cellvars, and co_freevars.  At runtime the dependent code must calculate the proper mapping from those, which isn't ideal and impacts performance-sensitive sections.  This is something we can easily address in the compiler instead.

This change addresses the situation by replacing internal use of co_varnames, etc. with a single combined tuple of names in locals-plus order, along with a minimal array mapping each to its kind (local vs. cell vs. free).  These two new PyCodeObject fields, co_fastlocalnames and co_fastllocalkinds, are not exposed to Python code for now, but co_varnames, etc. are still available with the same values as before (though computed lazily).

Aside from the (mild) performance impact, there are a number of other benefits:

* there's now a clear, direct relationship between locals-plus and variables
* code that relies on the locals-plus-to-name mapping is simpler
* marshaled code objects are smaller and serialize/de-serialize faster

Also note that we can take this approach further by expanding the possible values in co_fastlocalkinds to include specific argument types (e.g. positional-only, kwargs).  Doing so would allow further speed-ups in _PyEval_MakeFrameVector(), which is where args get unpacked into the locals-plus array.  It would also allow us to shrink marshaled code objects even further.

https://bugs.python.org/issue43693
2021-06-03 10:28:27 -06:00
Rishi fcda0f508e
Fix typo in block comment in Include/internal/pycore_condvar.h (GH-26457) 2021-06-01 18:30:05 -03:00
Mark Shannon f8a95df84b
bpo-44206: Add a version number to dictionary keys (GH-26333)
* Store log2(size) instead of size in dict-keys.

* Use enum instead of function pointer to record kind of keys.

* Add version number to dict keys.
2021-05-28 09:54:10 +01:00
Eric Snow 9f494d4929
bpo-43693: Add _PyCode_New(). (gh-26375)
This is an internal-only API that helps us manage the many values used to create a code object.

https://bugs.python.org/issue43693
2021-05-27 09:54:34 -06:00
Eric Snow 6cc800d363
bpo-43693: Clean up the PyCodeObject fields. (GH-26364)
* Move up the comment about fields using in hashing/comparision.

* Group the fields more clearly.

* Add co_ncellvars and co_nfreevars.

* Raise ValueError if nlocals != len(varnames), rather than aborting.
2021-05-26 20:15:40 +01:00
Gabriele N. Tornetta 90a6c07cb2
bpo-43879: Add native_thread_id field to PyThreadState (GH-25458) 2021-05-26 16:40:14 +02:00
Erlend Egeberg Aasland 1b940eb410
bpo-44231: Don't export internal _PyTuple_FromArray() symbol (GH-26352) 2021-05-25 15:58:14 +02:00
Petr Viktorin d16856960e
bpo-43795: Remove Py_FrozenMain from the Limited API & Stable ABI (GH-26241)
Py_FrozenMain was added to the Limited C API in [bpo-42591]() (3.10.0a4);
but to fix that issue it would be enough to add it to the regular C API.

The function is undocumented, tests were added very recently ([bpo-44131]()),
and most importantly, it is not present in all builds of Python, as
the linker sometimes omits it as unused.
It should be added back when these issues are fixed.

Note that this does not affect Python's regular C API.
2021-05-25 04:42:03 -07:00
Pablo Galindo bd7476dae3
bpo-44201: Avoid side effects of "invalid_*" rules in the REPL (GH-26298)
When the parser does a second pass to check for errors, these rules can
have some small side-effects as they may advance the parser more than
the point reached in the first pass. This can cause the tokenizer to ask
for extra tokens in interactive mode causing the tokenizer to show the
prompt instead of failing instantly.

To avoid this, add a new mode to the tokenizer that is activated in the
second pass and deactivates asking for new tokens when the interactive
line is finished. As the parsing should have reached the last line in
the first pass, the second pass should not need to ask for more tokens.
2021-05-22 23:05:00 +01:00
Victor Stinner 615069eb08
bpo-44184: Fix subtype_dealloc() for freed type (GH-26274)
Fix a crash at Python exit when a deallocator function removes the
last strong reference to a heap type.

Don't read type memory after calling basedealloc() since
basedealloc() can deallocate the type and free its memory.

_PyMem_IsPtrFreed() argument is now constant.
2021-05-21 19:19:54 +02:00
Mark Shannon b11a951f16
bpo-44032: Move data stack to thread from FrameObject. (GH-26076)
* Remove 'zombie' frames. We won't need them once we are allocating fixed-size frames.

* Add co_nlocalplus field to code object to avoid recomputing size of locals + frees + cells.

* Move locals, cells and freevars out of frame object into separate memory buffer.

* Use per-threadstate allocated memory chunks for local variables.

* Move globals and builtins from frame object to per-thread stack.

* Move (slow) locals frame object to per-thread stack.

* Move internal frame functions to internal header.
2021-05-21 10:57:35 +01:00
Ken Jin f24afda591
bpo-26110: Add ``CALL_METHOD_KW`` opcode to speedup method calls with keywords (GH-26014)
* Add CALL_METHOD_KW

* Make CALL_METHOD branchless too since it shares the same code

* Place parentheses in STACK_SHRINK
2021-05-15 16:15:23 +01:00
Inada Naoki ae3c66acb8
bpo-44094: Remove deprecated PyErr_ APIs. (GH-26011)
These APIs are deprecated since Python 3.3. They are not documented too.
2021-05-13 13:45:26 -07:00
Victor Stinner 6cd0446ef7
bpo-44113: Deprecate old functions to config Python init (GH-26060)
Deprecate the following functions to configure the Python
initialization:

* PySys_AddWarnOption()
* PySys_AddWarnOptionUnicode()
* PySys_AddXOption()
* PySys_HasWarnOptions()
* Py_SetPath()
* Py_SetProgramName()
* Py_SetPythonHome()
* Py_SetStandardStreamEncoding()
* _Py_SetProgramFullPath()

Use the new PyConfig API of the Python Initialization Configuration
instead (PEP 587).
2021-05-12 23:59:25 +02:00
Mark Shannon 117bfd2b71
Remove PyTryblock struct (GH-26059) 2021-05-12 14:04:38 +01:00
Petr Viktorin b05955d6f5
bpo-43795: PEP 652 user documentation (GH-25668)
- Reformat the C API and ABI Versioning page (and extend/clarify a bit)
- Rewrite the stable ABI docs into a general text on C API Compatibility
- Add a list of Limited API contents, and notes for the individual items. 
- Replace `Include/README.rst` with a link to a devguide page with the same info
2021-05-11 07:04:33 -07:00
Inada Naoki 4d4be47705
Do not use Py_ssize_clean_t (GH-25940) 2021-05-08 10:17:37 +09:00
Mark Shannon adcd220556
bpo-40222: "Zero cost" exception handling (GH-25729)
"Zero cost" exception handling.

* Uses a lookup table to determine how to handle exceptions.
* Removes SETUP_FINALLY and POP_TOP block instructions, eliminating (most of) the runtime overhead of try statements.
* Reduces the size of the frame object by about 60%.
2021-05-07 15:19:19 +01:00
Inada Naoki 9ad8f109ac
bpo-44029: Remove Py_UNICODE APIs (GH-25881)
Remove deprecated `Py_UNICODE` APIs: `PyUnicode_Encode`,
`PyUnicode_EncodeUTF7`, `PyUnicode_EncodeUTF8`,
`PyUnicode_EncodeUTF16`, `PyUnicode_EncodeUTF32`,
`PyUnicode_EncodeLatin1`, `PyUnicode_EncodeMBCS`,
`PyUnicode_EncodeDecimal`, `PyUnicode_EncodeRawUnicodeEscape`,
`PyUnicode_EncodeCharmap`, `PyUnicode_EncodeUnicodeEscape`,
`PyUnicode_TransformDecimalToASCII`, `PyUnicode_TranslateCharmap`,
`PyUnicodeEncodeError_Create`, `PyUnicodeTranslateError_Create`.

See :pep:`393` and :pep:`624` for reference.
2021-05-07 15:58:29 +09:00
Pablo Galindo bb3e0c240b
Python 3.11.0a0 2021-05-03 21:25:35 +01:00
Dennis Sweeney 80a2a4ed7d
bpo-38530: Refactor and improve AttributeError suggestions (GH-25776)
- Make case-swaps half the cost of any other edit
- Refactor Levenshtein code to not use memory allocator, and to bail early on no match.
- Add comments to Levenshtein distance code
- Add test cases for Levenshtein distance behind a debug macro
- Set threshold to `(name_size + item_size + 3) * MOVE_COST / 6`.
  - Reasoning: similar to `difflib.SequenceMatcher.ratio()` >= 2/3:
```
"Multiset Jaccard similarity" >= 2/3
matching letters / total letters >= 2/3
(name_size - distance + item_size - distance) / (name_size + item_size) >= 2/3
1 - (2*distance) / (name_size + item_size) >= 2/3
1/3 >= (2*distance) / (name_size + item_size)
(name_size + item_size) / 6 >= distance
With rounding:
(name_size + item_size + 3) // 6 >= distance
```

Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
2021-05-03 16:47:27 +01:00
Pablo Galindo c2931d31f8
bpo-43916: Move the _PyStructSequence_InitType function to the internal API (GH-25854) 2021-05-03 15:50:24 +01:00
Batuhan Taskaya ad106c68eb
bpo-42725: Render annotations effectless on symbol table with PEP 563 (GH-25583) 2021-05-03 10:43:00 +03:00
Brandt Bucher 0ad1e0384c
bpo-43754: Eliminate bindings for partial pattern matches (GH-25229) 2021-05-02 13:02:10 -07:00
Pablo Galindo 558df90109
bpo-43916: Export the _PyStructSequence_InitType to fix build errors in the curses module (GH-25768) 2021-05-01 02:21:19 +01:00
Jakub Kulík 9032cf5cb1
bpo-43667: Fix broken Unicode encoding in non-UTF locales on Solaris (GH-25096) 2021-04-30 15:21:42 +02:00
Victor Stinner 3bb09947ec
bpo-43916: Add Py_TPFLAGS_DISALLOW_INSTANTIATION type flag (GH-25721)
Add a new Py_TPFLAGS_DISALLOW_INSTANTIATION type flag to disallow
creating type instances: set tp_new to NULL and don't create the
"__new__" key in the type dictionary.

The flag is set automatically on static types if tp_base is NULL or
&PyBaseObject_Type and tp_new is NULL.

Use the flag on the following types:

* _curses.ncurses_version type
* _curses_panel.panel
* _tkinter.Tcl_Obj
* _tkinter.tkapp
* _tkinter.tktimertoken
* _xxsubinterpretersmodule.ChannelID
* sys.flags type
* sys.getwindowsversion() type
* sys.version_info type

Update MyStr example in the C API documentation to use
Py_TPFLAGS_DISALLOW_INSTANTIATION.

Add _PyStructSequence_InitType() function to create a structseq type
with the Py_TPFLAGS_DISALLOW_INSTANTIATION flag set.

type_new() calls _PyType_CheckConsistency() at exit.
2021-04-30 12:46:15 +02:00
Mark Shannon 069e81ab3d
bpo-43977: Use tp_flags for collection matching (GH-25723)
* Add Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING, add to all relevant standard builtin classes.

* Set relevant flags on collections.abc.Sequence and Mapping.

* Use flags in MATCH_SEQUENCE and MATCH_MAPPING opcodes.

* Inherit Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING.

* Add NEWS

* Remove interpreter-state map_abc and seq_abc fields.
2021-04-30 09:50:28 +01:00
Steve Dower 87655e2cf5
bpo-42800: Rename AUDIT_READ to PY_AUDIT_READ (GH-25736) 2021-04-30 01:08:55 +01:00
Ryan Hileman 9a2c2a9ec3
bpo-42800: add audit hooks for f_code and tb_frame (GH-24182)
Accessing the following attributes will now fire PEP 578 style audit hooks as ("object.__getattr__", obj, name):
* PyTracebackObject: tb_frame
* PyFrameObject: f_code
* PyGenObject: gi_code, gi_frame
* PyCoroObject: cr_code, cr_frame
* PyAsyncGenObject: ag_code, ag_frame
Add an AUDIT_READ attribute flag aliased to READ_RESTRICTED.
Update obsolete flag documentation.
2021-04-30 00:15:55 +01:00
Mark Shannon c76da79b37
bpo-42739: Don't use sentinels to mark end of line table. (GH-25657)
* Add length parameter to PyLineTable_InitAddressRange and doen't use sentinel values at end of table. Makes the line number table more robust.

* Update PyCodeAddressRange to match PEP 626.
2021-04-29 13:12:51 +01:00
Victor Stinner 645ed62fb4
bpo-43774: Remove unused PYMALLOC_DEBUG macro (GH-25711)
Enhance also the documentation of debug hooks on memory allocators.
2021-04-29 10:47:47 +02:00
Victor Stinner 5bd0619533
bpo-43908: Document Static Types in the C API (GH-25710)
Update also PyTypeObject structure definition in the doc.
2021-04-29 10:26:34 +02:00
Nick Coghlan 1e7b858575
bpo-43892: Make match patterns explicit in the AST (GH-25585)
Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
2021-04-28 22:58:44 -07:00
Erlend Egeberg Aasland 3b52c8d66b
bpo-43908: Add Py_TPFLAGS_IMMUTABLETYPE flag (GH-25520)
Introduce Py_TPFLAGS_IMMUTABLETYPE flag for immutable type objects, and
modify PyType_Ready() to set it for static types.

Co-authored-by: Victor Stinner <vstinner@python.org>
2021-04-28 19:02:42 +02:00
scoder 3cc481b9de
bpo-28254: Add a C-API for controlling the GC state (GH-25687)
Add new C-API functions to control the state of the garbage collector:
PyGC_Enable(), PyGC_Disable(), PyGC_IsEnabled(),
corresponding to the functions in the gc module.

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
2021-04-28 18:12:16 +02:00
Victor Stinner 32c5a17444
bpo-43962: Fix _PyInterpreterState_IDIncref() (GH-25683)
_PyInterpreterState_IDIncref() now calls
_PyInterpreterState_IDInitref() and always increments id_refcount.
2021-04-28 13:40:44 +02:00
Ma Lin f9bedb630e
bpo-41486: Faster bz2/lzma/zlib via new output buffering (GH-21740)
Faster bz2/lzma/zlib via new output buffering.
Also adds .readall() function to _compression.DecompressReader class
to take best advantage of this in the consume-all-output at once scenario.

Often a 5-20% speedup in common scenarios due to less data copying.

Contributed by Ma Lin.
2021-04-27 23:58:54 -07:00
Serhiy Storchaka face87c94e
bpo-42609: Check recursion depth in the AST validator and optimizer (GH-23744) 2021-04-25 13:38:00 +03:00
Segev Finer 5e437fb872
bpo-30555: Fix WindowsConsoleIO fails in the presence of fd redirection (GH-1927)
This works by not caching the handle and instead getting the handle from
the file descriptor each time, so that if the actual handle changes by
fd redirection closing/opening the console handle beneath our feet, we
will keep working correctly.
2021-04-23 23:00:27 +01:00
Pablo Galindo a77aac4fca
bpo-43914: Highlight invalid ranges in SyntaxErrors (#25525)
To improve the user experience understanding what part of the error messages associated with SyntaxErrors is wrong, we can highlight the whole error range and not only place the caret at the first character. In this way:

>>> foo(x, z for z in range(10), t, w)
  File "<stdin>", line 1
    foo(x, z for z in range(10), t, w)
           ^
SyntaxError: Generator expression must be parenthesized

becomes

>>> foo(x, z for z in range(10), t, w)
  File "<stdin>", line 1
    foo(x, z for z in range(10), t, w)
           ^^^^^^^^^^^^^^^^^^^^
SyntaxError: Generator expression must be parenthesized
2021-04-23 14:27:05 +01:00
Petr Viktorin 91b69b77cf
bpo-43868: Remove PyOS_ReadlineFunctionPointer from the stable ABI list (GH-25442)
The inclusion of PyOS_ReadlineFunctionPointer in python3dll.c was a mistake.

According to PEP 384:
> functions expecting FILE* are not part of the ABI, to avoid depending
> on a specific version of the Microsoft C runtime DLL on Windows.

https://bugs.python.org/issue43868
2021-04-23 14:23:38 +02:00
Petr Viktorin 9d6a2d0ee7
bpo-43795: PEP-652: Clean up the stable ABI/limited API (GH-25482)
- `_Py_EncodeLocaleRaw`, which is private by name, undocumented,
  and wasn't exported in `python3.dll`, is moved to a private header.
- `_Py_HashSecret_Initialized`, again private by name, undocumented,
  and not exported in `python3.dll`, is excluded with `Py_LIMITED_API`.
- `PyMarshal_*` and `PyMember_*One` functions, declared in private headers and
  not exported in `python3.dll`, are removed from `Doc/data/stable_abi.dat`.
- `PyMem_Calloc` which *was* exported in `python3dll.c`, is moved to public
  headers where it joins its other `PyMem_*` friends.

Only the last change is documented in the blurb; others are not user-visible.
(Nothing uses `Doc/data/stable_abi.dat` yet.)


https://bugs.python.org/issue43795
2021-04-23 14:17:58 +02:00
Petr Viktorin e7cc64e297
bpo-43795: PEP-652: Simplify headers for easier static analysis (GH-25483)
As part of the PEP-652 implementation, I'll tighten the CI check
for functions/data defined with `Py_LIMITED_API`.

Discussion in https://discuss.python.org/t/pep-652-maintaining-the-stable-abi/6986
suggests that parsing C headers is OK (though personally I'd rather generate it...),
but writing a full C parser is a monumental task and adding an existing one as a
dependency brings too many vendoring/bootstraping issues.

So, for the check I'll use a "simple" regex on preprocessor output, and adapt
the few trivial places where the regex won't work.

- Keep declarations in the limited API to one item per line
- Make it possible to override `_Py_NO_RETURN`, so the annotation can be
  removed from preprocessor output.


https://bugs.python.org/issue43795
2021-04-23 14:14:00 +02:00
Raymond Hettinger a07da09ad5
bpo-43475: Fix worst case collision behavior for NaN instances (GH-25493) 2021-04-22 08:34:57 -07:00
Victor Stinner cdad2724e6
bpo-40137: Add pycore_moduleobject.h internal header (GH-25507)
Add pycore_moduleobject.h internal header file with static inline
functions to access module members:

* _PyModule_GetDict()
* _PyModule_GetDef()
* _PyModule_GetState()

These functions don't check at runtime if their argument has a valid
type and can be inlined even if Python is not built with LTO.

_PyType_GetModuleByDef() uses _PyModule_GetDef().

Replace PyModule_GetState() with _PyModule_GetState() in the
extension modules, considered as performance sensitive:

* _abc
* _functools
* _operator
* _pickle
* _queue
* _random
* _sre
* _struct
* _thread
* _winapi
* array
* posix

The following extensions are now built with the Py_BUILD_CORE_MODULE
macro defined, to be able to use the internal pycore_moduleobject.h
header: _abc, array, _operator, _queue, _sre, _struct.
2021-04-22 00:52:52 +02:00
Pablo Galindo b280248be8
bpo-43822: Improve syntax errors for missing commas (GH-25377) 2021-04-15 21:38:45 +01:00
Pablo Galindo 5bf8bf2267
bpo-38530: Offer suggestions on NameError (GH-25397)
When printing NameError raised by the interpreter, PyErr_Display
will offer suggestions of simmilar variable names in the function that the exception
was raised from:

    >>> schwarzschild_black_hole = None
    >>> schwarschild_black_hole
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    NameError: name 'schwarschild_black_hole' is not defined. Did you mean: schwarzschild_black_hole?
2021-04-14 15:10:33 +01:00
Pablo Galindo 37494b441a
bpo-38530: Offer suggestions on AttributeError (#16856)
When printing AttributeError, PyErr_Display will offer suggestions of similar 
attribute names in the object that the exception was raised from:

>>> collections.namedtoplo
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'collections' has no attribute 'namedtoplo'. Did you mean: namedtuple?
2021-04-14 02:36:07 +01:00
Andrew V. Jones 54db51c911
bpo-43816: Add extern "C" to Include/cpython/pyctype.h (GH-25365)
Signed-off-by: Andrew V. Jones <andrew.jones@vector.com>
2021-04-13 13:27:21 +02:00
Mark Shannon 9e7b2076fb
bpo-43760: Speed up check for tracing in interpreter dispatch (#25276)
* Remove redundant tracing_possible field from interpreter state.

* Move 'use_tracing' from tstate onto C stack, for fastest possible checking in dispatch logic.

* Add comments stressing the importance stack discipline when dealing with CFrames.

* Add NEWS
2021-04-13 11:08:14 +01:00
Victor Stinner 53114ffef1
bpo-43770: Refactor PyType_Ready() function (GH-25336)
* Split PyType_Ready() into sub-functions.
* type_ready_mro() now checks if bases are static types earlier.
* Check tp_name earlier, in type_ready_checks().
* Add _PyType_IsReady() macro to check if a type is ready.
2021-04-11 23:57:09 +02:00
Victor Stinner 09bbebea16
bpo-43753: Add Py_Is() and Py_IsNone() functions (GH-25227)
Add the Py_Is(x, y) function to test if the 'x' object is the 'y'
object, the same as "x is y" in Python. Add also the Py_IsNone(),
Py_IsTrue(), Py_IsFalse() functions to test if an object is,
respectively, the None singleton, the True singleton or the False
singleton.
2021-04-11 00:17:39 +02:00
Matthew Suozzo 75a06f067b
bpo-43798: Add source location attributes to alias (GH-25324)
* Add source location attributes to alias.
* Move alias star construction to pegen helper.

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
2021-04-10 22:56:28 +02:00
Victor Stinner b98eba5bc2
bpo-43770: _PyTypes_Init() inits _PyAnextAwaitable_Type (GH-25266)
* Rename PyAnextAwaitable_Type to _PyAnextAwaitable_Type.
* Expose the type in the internal C API.
2021-04-08 09:58:15 +02:00
Victor Stinner d27f8d2e07
bpo-43244: Rename pycore_ast.h functions to _PyAST_xxx() (GH-25252)
Rename AST functions of pycore_ast.h to use the "_PyAST_" prefix.
Remove macros creating aliases without prefix. For example, Module()
becomes _PyAST_Module(). Update Grammar/python.gram to use
_PyAST_xxx() functions.
2021-04-07 21:34:22 +02:00
Victor Stinner d36d6a9c18
bpo-43244: Remove Yield macro from pycore_ast.h (GH-25243)
* pycore_ast.h no longer defines the Yield macro.
* Fix a compiler warning on Windows: "warning C4005: 'Yield': macro
  redefinition".
* Python-ast.c now defines directly functions with their real
  _Py_xxx() name, rather than xxx().
* Remove "#undef Yield" in C files including pycore_ast.h.
2021-04-07 13:01:09 +02:00
Mark Shannon b37181e692
bpo-43683: Handle generator entry in bytecode (GH-25138)
* Handle check for sending None to starting generator and coroutine into bytecode.

* Document new bytecode and make it fail gracefully if mis-compiled.
2021-04-06 11:48:59 +01:00
Pablo Galindo 04eecf7fac
Post 3.10.0a7 2021-04-05 18:04:54 +01:00
Pablo Galindo 53e55290cf
Python 3.10.0a7 2021-04-05 17:39:49 +01:00
Victor Stinner 3359cab038
bpo-43688: Support the limited C API in debug mode (GH-25131)
The limited C API is now supported if Python is built in debug mode
(if the Py_DEBUG macro is defined). In the limited C API, the
Py_INCREF() and Py_DECREF() functions are now implemented as opaque
function calls, rather than accessing directly the PyObject.ob_refcnt
member, if Python is built in debug mode and the Py_LIMITED_API macro
targets Python 3.10 or newer. It became possible to support the
limited C API in debug mode because the PyObject structure is the
same in release and debug mode since Python 3.8 (see bpo-36465).

The limited C API is still not supported in the --with-trace-refs
special build (Py_TRACE_REFS macro).
2021-04-02 15:45:37 +02:00
Victor Stinner 442ad74fc2
bpo-43687: Py_Initialize() creates singletons earlier (GH-25147)
Reorganize pycore_interp_init() to initialize singletons before the
the first PyType_Ready() call. Fix an issue when Python is configured
using --without-doc-strings.
2021-04-02 15:28:13 +02:00
Victor Stinner 2ac0515027
bpo-43688: Fix Py_LIMITED_API version of xxlimited (GH-25135)
xxlimited targets Python 3.10, not Python 3.16: fix the hexadecimal
version number used in the Py_LIMITED_API macro.
2021-04-01 15:09:33 +02:00
Inada Naoki 4827483f47
bpo-43510: Implement PEP 597 opt-in EncodingWarning. (GH-19481)
See [PEP 597](https://www.python.org/dev/peps/pep-0597/).

* Add `-X warn_default_encoding` and `PYTHONWARNDEFAULTENCODING`.
* Add EncodingWarning
* Add io.text_encoding()
* open(), TextIOWrapper() emits EncodingWarning when encoding is omitted and warn_default_encoding is enabled.
* _pyio.TextIOWrapper() uses UTF-8 as fallback default encoding used when failed to import locale module. (used during building Python)
* bz2, configparser, gzip, lzma, pathlib, tempfile modules use io.text_encoding().
* What's new entry
2021-03-29 12:28:14 +09:00
Erlend Egeberg Aasland 929c9039fe
bpo-43416: Add Include/README.rst (GH-24884) 2021-03-25 17:16:31 +01:00
Victor Stinner 8370e07e1e
bpo-43244: Remove the pyarena.h header (GH-25007)
Remove the pyarena.h header file with functions:

* PyArena_New()
* PyArena_Free()
* PyArena_Malloc()
* PyArena_AddPyObject()

These functions were undocumented, excluded from the limited C API,
and were only used internally by the compiler.

Add pycore_pyarena.h header. Rename functions:

* PyArena_New() => _PyArena_New()
* PyArena_Free() => _PyArena_Free()
* PyArena_Malloc() => _PyArena_Malloc()
* PyArena_AddPyObject() => _PyArena_AddPyObject()
2021-03-24 02:23:01 +01:00
Victor Stinner 57364ce34e
bpo-43244: Remove parser_interface.h header file (GH-25001)
Remove parser functions using the "struct _mod" type, because the
AST C API was removed:

* PyParser_ASTFromFile()
* PyParser_ASTFromFileObject()
* PyParser_ASTFromFilename()
* PyParser_ASTFromString()
* PyParser_ASTFromStringObject()

These functions were undocumented and excluded from the limited C
API.

Add pycore_parser.h internal header file. Rename functions:

* PyParser_ASTFromFileObject() => _PyParser_ASTFromFile()
* PyParser_ASTFromStringObject() => _PyParser_ASTFromString()

These functions are no longer exported (replace PyAPI_FUNC() with
extern).

Remove also _PyPegen_run_parser_from_file() function. Update
test_peg_generator to use _PyPegen_run_parser_from_file_pointer()
instead.
2021-03-24 01:29:09 +01:00
Victor Stinner a81fca6ec8
bpo-43244: Add pycore_compile.h header file (GH-25000)
Remove the compiler functions using "struct _mod" type, because the
public AST C API was removed:

* PyAST_Compile()
* PyAST_CompileEx()
* PyAST_CompileObject()
* PyFuture_FromAST()
* PyFuture_FromASTObject()

These functions were undocumented and excluded from the limited C API.

Rename functions:

* PyAST_CompileObject() => _PyAST_Compile()
* PyFuture_FromASTObject() => _PyFuture_FromAST()

Moreover, _PyFuture_FromAST() is no longer exported (replace
PyAPI_FUNC() with extern). _PyAST_Compile() remains exported for
test_peg_generator.

Remove also compatibility functions:

* PyAST_Compile()
* PyAST_CompileEx()
* PyFuture_FromAST()
2021-03-24 00:51:50 +01:00
Joshua Bronson f0a6fde882
bpo-31861: Add aiter and anext to builtins (#23847)
Co-authored-by: jab <jab@users.noreply.github.com>
Co-authored-by: Daniel Pope <mauve@mauveweb.co.uk>
Co-authored-by: Justin Wang <justin39@gmail.com>
2021-03-23 15:47:21 -07:00
Victor Stinner 94faa0724f
bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933)
These functions were undocumented and excluded from the limited C
API.

Most names defined by these header files were not prefixed by "Py"
and so could create names conflicts. For example, Python-ast.h
defined a "Yield" macro which was conflict with the "Yield" name used
by the Windows <winbase.h> header.

Use the Python ast module instead.

* Move Include/asdl.h to Include/internal/pycore_asdl.h.
* Move Include/Python-ast.h to Include/internal/pycore_ast.h.
* Remove ast.h header file.
* pycore_symtable.h no longer includes Python-ast.h.
2021-03-23 20:47:40 +01:00
Victor Stinner 39f643614d
Revert "bpo-40521: Make dtoa bigint free list per-interpreter (GH-24821)" (GH-24964)
This reverts commit 5bd1059184.
2021-03-22 11:58:59 +01:00
Hai Shi 56f031ec52
bpo-35134: Add include/cpython/compile.h (GH-24922)
Move C API excluded from the limited C API from Include/compile.h
to a new Include/cpython/compile.h header file.
2021-03-22 09:32:11 +01:00
Antoine Pitrou cdddc2b742
bpo-43422: Revert _decimal C API addition (GH-24960)
Stefan Krah requested the reversal of these (unreleased) changes, quoting him:
> The capsule API does not meet my testing standards, since I've focused
on the upstream mpdecimal in the last couple of months.
> Additionally, I'd like to refine the API, perhaps together with the
Arrow community.

Automerge-Triggered-By: GH:pitrou
2021-03-21 09:27:54 -07:00
Victor Stinner 28ad12f8fe
bpo-43244: Remove symtable.h header file (GH-24910)
Rename Include/symtable.h to to Include/internal/pycore_symtable.h,
don't export symbols anymore (replace PyAPI_FUNC and PyAPI_DATA with
extern) and rename functions:

* PyST_GetScope() to _PyST_GetScope()
* PySymtable_BuildObject() to _PySymtable_Build()
* PySymtable_Free() to _PySymtable_Free()

Remove PySymtable_Build(), Py_SymtableString() and
Py_SymtableStringObject() functions.

The Py_SymtableString() function was part the stable ABI by mistake
but it could not be used, since the symtable.h header file was
excluded from the limited C API.

The Python symtable module remains available and is unchanged.
2021-03-19 12:41:49 +01:00
Victor Stinner eec8e61992
bpo-43244: Remove the PyAST_Validate() function (GH-24911)
Remove the PyAST_Validate() function. It is no longer possible to
build a AST object (mod_ty type) with the public C API. The function
was already excluded from the limited C API (PEP 384).

Rename PyAST_Validate() function to _PyAST_Validate(), move it to the
internal C API, and don't export it anymore (replace PyAPI_FUNC with
extern).

The function was added in bpo-12575 by
the commit 832bfe2ebd.
2021-03-18 14:57:49 +01:00
Victor Stinner 526fdeb227
bpo-43244: Add pycore_ast.h header file (GH-24908)
Move _PyAST_GetDocString() and _PyAST_ExprAsUnicode() functions the
internal C API: from Include/ast.h to a new
Include/internal/pycore_ast.h header file. Don't export these
functions anymore: replace PyAPI_FUNC() with extern.

Remove also unused includes.
2021-03-17 23:50:50 +01:00
Victor Stinner b4536e1c6a
bpo-43244: Rename pycore_ast.h to pycore_ast_state.h (GH-24907) 2021-03-17 23:11:03 +01:00
junyixie 5bd1059184
bpo-40521: Make dtoa bigint free list per-interpreter (GH-24821) 2021-03-13 14:25:14 +01:00
Antoine Pitrou ba251c2ae6
bpo-43356: Allow passing a signal number to interrupt_main() (GH-24755)
Also introduce a new C API ``PyErr_SetInterruptEx(int signum)``.
2021-03-11 23:35:45 +01:00
Victor Stinner 87f649a409
bpo-43311: Create GIL autoTSSkey ealier (GH-24819)
At Python startup, call _PyGILState_Init() before
PyInterpreterState_New() which calls _PyThreadState_GET(). When
Python is built using --with-experimental-isolated-subinterpreters,
_PyThreadState_GET() uses autoTSSkey.
2021-03-10 20:00:46 +01:00
Victor Stinner 9f672a52f5
bpo-37146: Move _PyEval_DeactivateOpCache() to the internal C API (GH-24786)
Don't export the symbol anymore.
2021-03-08 22:56:37 +01:00
db3l 131d551640
bpo-43271: Re-enable ceval.c optimizations for Windows debug builds (GH-24739)
Partially reverts commit b74396c316

The optimizations are necessary to prevent the interpreter from
crashing in a number of tests involving recursion.
2021-03-03 19:09:48 -08:00
Pablo Galindo 7c25508263
Post 3.10.0a6 2021-03-01 19:42:28 +00:00
Pablo Galindo cc12888f9b
Remove unused suspicious rule in the docs 2021-03-01 16:48:59 +00:00
Jozef Grajciar c994ffe695
bpo-11717: fix ssize_t redefinition error when targeting 32bit Windows app (GH-24479) 2021-03-01 11:18:33 +00:00
Pablo Galindo af5fa13ef6
bpo-37146: Deactivate opcode cache only when using huntrleaks in the test suite (GH-24643) 2021-02-28 22:41:09 +00:00
Brandt Bucher 145bf269df
bpo-42128: Structural Pattern Matching (PEP 634) (GH-22917)
Co-authored-by: Guido van Rossum <guido@python.org>
Co-authored-by: Talin <viridia@gmail.com>
Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
2021-02-26 14:51:55 -08:00
Petr Viktorin 7bb1cafa4e
bpo-43239: Export PyCFunction_New with PyAPI_FUNC (GH-24551) 2021-02-23 13:23:56 +01:00
Pablo Galindo d439fb304c
bpo-43277: Add PySet_CheckExact to the C-API (GH-24598)
For some mysterious reason we have PySet_Check, PyFrozenSet_Check, PyAnySet_Check, PyAnySet_CheckExact and PyFrozenSet_CheckExact but no PySet_CheckExact.
2021-02-20 18:03:08 +00:00
Victor Stinner 46496f9d12
bpo-42990: Functions inherit current builtins (GH-24564)
The types.FunctionType constructor now inherits the current builtins
if the globals dictionary has no "__builtins__" key, rather than
using {"None": None} as builtins: same behavior as eval() and exec()
functions.

Defining a function with "def function(...): ..." in Python is not
affected, globals cannot be overriden with this syntax: it also
inherits the current builtins.

PyFrame_New(), PyEval_EvalCode(), PyEval_EvalCodeEx(),
PyFunction_New() and PyFunction_NewWithQualName() now inherits the
current builtins namespace if the globals dictionary has no
"__builtins__" key.

* Add _PyEval_GetBuiltins() function.
* _PyEval_BuiltinsFromGlobals() now uses _PyEval_GetBuiltins() if
  builtins cannot be found in globals.
* Add tstate parameter to _PyEval_BuiltinsFromGlobals().
2021-02-20 15:17:18 +01:00
Nicholas Sim 4a6bf276ed
bpo-35134: Move non-limited C API files to Include/cpython/ (GH-24561)
Include/{odictobject.h,parser_interface.h,picklebufobject.h,pydebug.h,pyfpe.h}
into Include/cpython/.

Parser: peg_api: include Python.h instead of parser_interface.h.
2021-02-19 15:55:46 +01:00
Victor Stinner bcb094b41f
bpo-43268: Pass interp rather than tstate to internal functions (GH-24580)
Pass the current interpreter (interp) rather than the current Python
thread state (tstate) to internal functions which only use the
interpreter.

Modified functions:

* _PyXXX_Fini() and _PyXXX_ClearFreeList() functions
* _PyEval_SignalAsyncExc(), make_pending_calls()
* _PySys_GetObject(), sys_set_object(), sys_set_object_id(), sys_set_object_str()
* should_audit(), set_flags_from_config(), make_flags()
* _PyAtExit_Call()
* init_stdio_encoding()
* etc.
2021-02-19 15:10:45 +01:00
Victor Stinner a486054b24
bpo-43270: Remove private _PyErr_OCCURRED() macro (GH-24579)
Remove the private _PyErr_OCCURRED() macro: use the public
PyErr_Occurred() function instead.

CPython internals must use the internal _PyErr_Occurred(tstate)
function instead: it is the most efficient way to check if an
exception was raised.
2021-02-19 15:08:54 +01:00
Victor Stinner 101bf69ff1
bpo-43268: _Py_IsMainInterpreter() now expects interp (GH-24577)
The _Py_IsMainInterpreter() function now expects interp rather than
tstate.
2021-02-19 13:33:31 +01:00
Victor Stinner 62078101ea
bpo-40522: Replace PyThreadState_GET() with PyThreadState_Get() (GH-24575)
Use directly the PyThreadState_Get() function in public header files,
since PyThreadState_GET() macro is just an alias to it in pratice in
these files.
2021-02-19 13:21:51 +01:00
Victor Stinner 5592f2b9da
bpo-43268: Replace _PyThreadState_GET() with _PyInterpreterState_GET() (GH-24576)
Replace _PyThreadState_GET() with _PyInterpreterState_GET() in
functions which only need the current interpreter, but don't need the
current Python thread state.

Replace also _PyThreadState_UncheckedGet() with _PyThreadState_GET()
in faulthandler.c, since _PyThreadState_UncheckedGet() is just an
alias to _PyThreadState_GET() in practice.
2021-02-19 13:21:28 +01:00
Victor Stinner 44085a3fc9
bpo-42990: Refactor _PyFrame_New_NoTrack() (GH-24566)
* Refactor _PyFrame_New_NoTrack() and PyFunction_NewWithQualName()
  code.
* PyFrame_New() checks for _PyEval_BuiltinsFromGlobals() failure.
* Fix a ref leak in _PyEval_BuiltinsFromGlobals() error path.
* Complete PyFunction_GetModule() documentation: it returns a
  borrowed reference and it can return NULL.
* Move _PyEval_BuiltinsFromGlobals() definition to the internal C
  API.
* PyFunction_NewWithQualName() uses _Py_IDENTIFIER() API for the
  "__name__" string to make it compatible with subinterpreters.
2021-02-18 19:20:16 +01:00
Nicholas Sim 366dc3a135
bpo-35134: Move Include/{pyarena.h,pyctype.h} to Include/cpython/ (GH-24550)
Move non-limited C API headers pyarena.h and pyctype.h
into Include/cpython/ directory.
2021-02-17 19:30:31 +01:00
Erlend Egeberg Aasland cd80f430da
bpo-40170: Always define PyExceptionClass_Name() as a function (GH-24553)
Remove macro variant of PyExceptionClass_Name().
2021-02-17 11:51:08 +01:00
Erlend Egeberg Aasland cc54001c2e
bpo-40170: Always define PyIter_Check() as a function (GH-24548) 2021-02-16 16:05:58 +01:00
Nicholas Sim 17dbd4078b
bpo-35134, Include: Move pytime.h to cpython/pytime.h (GH-23988)
This change is backward compatible since C extension modules
must not include "pytime.h" directly, but only include "Python.h".
2021-02-16 13:04:38 +01:00
Erlend Egeberg Aasland 871eb4237b
bpo-40170: Convert PyDescr_IsData() to static inline function (GH-24535) 2021-02-16 08:50:00 +01:00
Erlend Egeberg Aasland 4bb2a1ebc5
bpo-43181: Convert PyObject_TypeCheck to static inline function (GH-24533) 2021-02-15 17:19:24 +01:00
Steve Dower b74396c316
bpo-43166: Disable ceval.c optimisations for Windows debug builds (GH-24485)
This ensures that ceval.c can be debugged.
Also remove some irrelevant options from the pragma.
2021-02-09 18:13:36 +00:00
Inada Naoki d938816acf
bpo-35295: Remove outdated comment. (GH-24453) 2021-02-05 13:21:28 +09:00
Pablo Galindo 12d0a7642f
Post 3.10.0a5 2021-02-03 06:15:44 +00:00
Pablo Galindo b0478d738a
Fix Sphynx syntax in the memory.rst document 2021-02-02 20:45:36 +00:00
Mark Shannon 0332e569c1
bpo-42990: Further refactoring of PyEval_ functions. (GH-24368)
* Further refactoring of PyEval_EvalCode and friends. Break into make-frame, and eval-frame parts.

* Simplify function vector call using new _PyEval_Vector.

* Remove unused internal functions: _PyEval_EvalCodeWithName and _PyEval_EvalCode.

* Don't use legacy function PyEval_EvalCodeEx.
2021-02-01 10:42:03 +00:00
Serhiy Storchaka 42b1806af9
bpo-43030: Fixed a compiler warning in Py_UNICODE_ISSPACE with signed wchar_t (GH-24350) 2021-01-31 15:55:13 +02:00
Mark Shannon d6c33fbd34
bpo-42990: Introduce 'frame constructor' struct to simplify API for PyEval_CodeEval and friends (GH-24298)
* Introduce 'frame constructor' to simplify API for frame creation

* Embed struct using a macro to conform to PEP 7
2021-01-29 13:24:55 +00:00
Victor Stinner c9b8e9c421
bpo-42979: Enhance abstract.c assertions checking slot result (GH-24352)
* bpo-42979: Enhance abstract.c assertions checking slot result

Add _Py_CheckSlotResult() function which fails with a fatal error if
a slot function succeeded with an exception set or failed with no
exception set: write the slot name, the type name and the current
exception (if an exception is set).
2021-01-27 16:39:16 +00:00
Batuhan Taskaya a698d52c39
bpo-40176: Improve error messages for unclosed string literals (GH-19346)
Automerge-Triggered-By: GH:isidentical
2021-01-20 13:38:47 -08:00
Victor Stinner 66f77caca3
bpo-42923: _Py_DumpExtensionModules() ignores stdlib ext (GH-24254) 2021-01-19 23:35:27 +01:00
Victor Stinner 250035d134
bpo-42923: Dump extension modules on fatal error (GH-24207)
The Py_FatalError() function and the faulthandler module now dump the
list of extension modules on a fatal error.

Add _Py_DumpExtensionModules() and _PyModule_IsExtension() internal
functions.
2021-01-18 20:47:13 +01:00
Victor Stinner 314b8787e0
bpo-42923: Py_FatalError() avoids fprintf() (GH-24242)
* Replace buffered fprintf() with unbuffered _Py_write_noraise()
  in Py_FatalError().
* _Py_DumpHexadecimal() now accepts uintptr_t.
2021-01-18 18:34:56 +01:00
Serhiy Storchaka 4db8988420
bpo-41994: Fix refcount issues in Python/import.c (GH-22632)
https://bugs.python.org/issue41994
2021-01-12 15:43:32 +01:00
Victor Stinner 44bf57aca6
bpo-42882: _PyRuntimeState_Init() leaves unicode next_index unchanged (GH-24193)
Fix the _PyUnicode_FromId() function (_Py_IDENTIFIER(var) API) when
Py_Initialize() / Py_Finalize() is called multiple times:
preserve _PyRuntime.unicode_ids.next_index value.

Use _PyRuntimeState_INIT macro instead memset(0) to reset
_PyRuntimeState members to zero.
2021-01-12 10:29:45 +01:00
Erlend Egeberg Aasland fe9f446afe
bpo-41798: Allocate _decimal extension module C API on the heap (GH-24117) 2021-01-06 12:47:28 +01:00
Mark Shannon ee9f98d9f4
bpo-42823: Fix frame lineno when frame.f_trace is set (GH-24099)
* Add test for frame.f_lineno with/without tracing.

* Make sure that frame.f_lineno is correct regardless of whether frame.f_trace is set.

* Update importlib

* Add NEWS
2021-01-05 12:04:10 +00:00
Pablo Galindo 958acd2da0
Post 3.10.0a4 2021-01-04 21:17:03 +00:00
Pablo Galindo 445f7f54b1
Python 3.10.0a4 2021-01-04 17:26:00 +00:00
Petr Viktorin 056c08211b
bpo-40052: Fix alignment issue in PyVectorcall_Function() (GH-23999)
```
In file included from /usr/include/python3.8/Python.h:147:
In file included from /usr/include/python3.8/abstract.h:837:
/usr/include/python3.8/cpython/abstract.h:91:11: error: cast from 'char *' to 'vectorcallfunc *'
(aka 'struct _object *(**)(struct _object *, struct _object *const *, unsigned long, struct _object *)')
increases required alignment from 1 to 8 [-Werror,-Wcast-align]

    ptr = (vectorcallfunc*)(((char *)callable) + offset);
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
```
Co-Authored-By: Andreas Schneider <asn@cryptomilk.org>
Co-Authored-By: Antoine Pitrou <antoine@python.org>
2020-12-29 15:32:07 -08:00
Victor Stinner ea251806b8
bpo-40521: Per-interpreter interned strings (GH-20085)
Make the Unicode dictionary of interned strings compatible with
subinterpreters.

Remove the INTERN_NAME_STRINGS macro in typeobject.c: names are
always now interned (even if EXPERIMENTAL_ISOLATED_SUBINTERPRETERS
macro is defined).

_PyUnicode_ClearInterned() now uses PyDict_Next() to no longer
allocate memory, to ensure that the interned dictionary is cleared.
2020-12-26 02:58:33 +01:00
Victor Stinner 4101018488
bpo-42745: Make the type cache per-interpreter (GH-23947)
Make the type attribute lookup cache per-interpreter.

Add private _PyType_InitCache() function, called by PyInterpreterState_New().

Continue to share next_version_tag between interpreters, since static
types are still shared by interpreters.

Remove MCACHE macro: the cache is no longer disabled if the
EXPERIMENTAL_ISOLATED_SUBINTERPRETERS macro is defined.
2020-12-26 01:45:43 +01:00
Victor Stinner ba3d67c2fb
bpo-39465: Fix _PyUnicode_FromId() for subinterpreters (GH-20058)
Make _PyUnicode_FromId() function compatible with subinterpreters.
Each interpreter now has an array of identifier objects (interned
strings decoded from UTF-8).

* Add PyInterpreterState.unicode.identifiers: array of identifiers
  objects.
* Add _PyRuntimeState.unicode_ids used to allocate unique indexes
  to _Py_Identifier.
* Rewrite the _Py_Identifier structure.

Microbenchmark on _PyUnicode_FromId(&PyId_a) with _Py_IDENTIFIER(a):

[ref] 2.42 ns +- 0.00 ns -> [atomic] 3.39 ns +- 0.00 ns: 1.40x slower

This change adds 1 ns per _PyUnicode_FromId() call in average.
2020-12-26 00:41:46 +01:00
Victor Stinner 52a327c1cb
bpo-39465: Add pycore_atomic_funcs.h header (GH-20766)
Add pycore_atomic_funcs.h internal header file: similar to
pycore_atomic.h but don't require to declare variables as atomic.

Add _Py_atomic_size_get() and _Py_atomic_size_set() functions.
2020-12-23 03:41:08 +01:00
Mark Shannon bf353f3c2d
bpo-42246: Make sure that `f_lasti`, and thus `f_lineno`, is set correctly after raising or reraising an exception (GH-23803)
* Ensure that f_lasti is set correctly after an exception is raised to conform to PEP 626.

* Update importlib

* Add NEWS.
2020-12-17 13:55:28 +00:00
Victor Stinner b8fa135908
bpo-42639: Move atexit state to PyInterpreterState (GH-23763)
* Add _PyAtExit_Call() function and remove pyexitfunc and
  pyexitmodule members of PyInterpreterState. The function
  logs atexit callback errors using _PyErr_WriteUnraisableMsg().
* Add _PyAtExit_Init() and _PyAtExit_Fini() functions.
* Remove traverse, clear and free functions of the atexit module.

Co-authored-by: Dong-hee Na <donghee.na@python.org>
2020-12-15 14:34:19 +01:00
Victor Stinner 357704c9f2
bpo-42639: atexit now logs callbacks exceptions (GH-23771)
At Python exit, if a callback registered with atexit.register()
fails, its exception is now logged. Previously, only some exceptions
were logged, and the last exception was always silently ignored.

Add _PyAtExit_Call() function and remove
PyInterpreterState.atexit_func member. call_py_exitfuncs() now calls
directly _PyAtExit_Call().

The atexit module must now always be built as a built-in module.
2020-12-14 23:07:54 +01:00
Victor Stinner 83d52044ae
bpo-42639: Cleanup atexitmodule.c (GH-23770)
* Rename "atexitmodule_state" to "struct atexit_state".
* Rename "modstate" to "state".
* Rename "self" parameter to "module".
* test_atexit uses textwrap.dedent().
* Remove _Py_PyAtExit() function: inline it into atexit_exec().
* PyInterpreterState: rename pyexitfunc to atexit_func, rename
  pyexitmodule to atexit_module.
2020-12-14 22:40:40 +01:00
Victor Stinner b5c7b38f5e
bpo-42591: Export missing Py_FrozenMain() symbol (GH-23730)
Export the Py_FrozenMain() function: fix a Python 3.9.0 regression.
Python 3.9 uses -fvisibility=hidden and the function was not exported
explicitly and so not exported.

Add also Py_FrozenMain to the stable ABI on Windows.
2020-12-10 18:39:17 +01:00
Victor Stinner a82f63f5af
bpo-32381: Add _PyRun_AnyFileObject() (GH-23723)
pymain_run_file() no longer encodes the filename: pass the filename
as an object to the new _PyRun_AnyFileObject() function.

Add new private functions:

* _PyRun_AnyFileObject()
* _PyRun_InteractiveLoopObject()
* _Py_FdIsInteractive()
2020-12-09 22:37:27 +01:00
Victor Stinner ca06440207
bpo-32381: Remove unused _Py_fopen() function (GH-23711)
Remove the private _Py_fopen() function which is no longer needed.
Use _Py_wfopen() or _Py_fopen_obj() instead.
2020-12-09 20:54:31 +01:00
Victor Stinner 550e4673be
bpo-32381: Add _PyRun_SimpleFileObject() (GH-23709)
pymain_run_startup() now pass the filename as a Python object to
_PyRun_SimpleFileObject().
2020-12-09 00:32:54 +01:00
Victor Stinner fe6e5e7cfd
bpo-35134: Add Include/cpython/pythonrun.h file (GH-23701)
Py_CompileString() is now always declared as a function by
Include/pythonrun.h. It is overriden with a macro in
Include/cpython/pythonrun.h.
2020-12-08 23:51:54 +01:00
Pablo Galindo 233fddfe39
Post 3.10.0a3 2020-12-08 02:31:04 +00:00
Pablo Galindo 8bae2a958e
Python 3.10.0a3 2020-12-07 19:34:10 +00:00
Victor Stinner 0ef96c2b2a
bpo-30459: Cast the result of PyCell_SET to void (GH-23654) 2020-12-07 11:56:20 +01:00
Zackery Spytz 556d97f473
bpo-30459: Cast the result of PyList_SET_ITEM() to void (GH-19975)
Do the same for PyTuple_SET_ITEM().
2020-12-05 11:34:51 +01:00
Victor Stinner 8b6c4a921a
bpo-42262: Py_NewRef() casts its argument to PyObject* (GH-23626)
Write also unit tests on Py_NewRef() and Py_XNewRef().
2020-12-03 14:01:10 +01:00
Serhiy Storchaka 2ad93821a6
bpo-42431: Fix outdated bytes comments (GH-23458)
Also move definitions of internal macros F_LJUST etc to private header.
2020-12-03 12:46:16 +02:00
Mark Shannon 4e7a69bdb6
bpo-42500: Fix recursion in or after except (GH-23568)
* Use counter, rather boolean state when handling soft overflows.
2020-12-02 13:30:55 +00:00
Victor Stinner 32bd68c839
bpo-42519: Replace PyObject_MALLOC() with PyObject_Malloc() (GH-23587)
No longer use deprecated aliases to functions:

* Replace PyObject_MALLOC() with PyObject_Malloc()
* Replace PyObject_REALLOC() with PyObject_Realloc()
* Replace PyObject_FREE() with PyObject_Free()
* Replace PyObject_Del() with PyObject_Free()
* Replace PyObject_DEL() with PyObject_Free()
2020-12-01 10:37:39 +01:00
Victor Stinner 00d7abd7ef
bpo-42519: Replace PyMem_MALLOC() with PyMem_Malloc() (GH-23586)
No longer use deprecated aliases to functions:

* Replace PyMem_MALLOC() with PyMem_Malloc()
* Replace PyMem_REALLOC() with PyMem_Realloc()
* Replace PyMem_FREE() with PyMem_Free()
* Replace PyMem_Del() with PyMem_Free()
* Replace PyMem_DEL() with PyMem_Free()

Modify also the PyMem_DEL() macro to use directly PyMem_Free().
2020-12-01 09:56:42 +01:00
Hai Shi ed1a5a5bac
bpo-40170: Hide impl detail of Py_TRASHCAN_BEGIN macro (GH-23235)
The Py_TRASHCAN_BEGIN macro no longer accesses PyTypeObject attributes,
but now can get the condition by calling the new private
_PyTrash_cond() function which hides implementation details.
2020-11-24 23:03:31 +01:00
Victor Stinner 6223071421
bpo-1635741: Convert _imp to multi-phase init (GH-23378)
Convert the _imp extension module to the multi-phase initialization
API (PEP 489).

* Add _PyImport_BootstrapImp() which fix a bootstrap issue: import
  the _imp module before importlib is initialized.
* Add create_builtin() sub-function, used by _imp_create_builtin().
* Initialize PyInterpreterState.import_func earlier, in
  pycore_init_builtins().
* Remove references to _PyImport_Cleanup(). This function has been
  renamed to finalize_modules() and moved to pylifecycle.c.
2020-11-18 23:18:29 +01:00
Victor Stinner 0e2ac21dd4
bpo-39573: Convert Py_TYPE() and Py_SIZE() back to macros (GH-23366)
This change partically reverts
commit ad3252bad9
and the commit fe2978b3b9.

Many third party C extension modules rely on the ability of using
Py_TYPE() to set an object type: "Py_TYPE(obj) = type;" or to set an
object type using: "Py_SIZE(obj) = size;".
2020-11-18 18:48:06 +01:00
Victor Stinner 296a796951
bpo-41713: Remove PyOS_InitInterrupts() function (GH-23342)
Remove the undocumented PyOS_InitInterrupts() C function.

* Rename PyOS_InitInterrupts() to _PySignal_Init(). It now installs
  other signal handlers, not only SIGINT.
* Rename PyOS_FiniInterrupts() to _PySignal_Fini()
2020-11-17 16:22:23 +01:00
Victor Stinner ae6cd7cfda
bpo-37205: time.time() cannot fail with fatal error (GH-23314)
time.time(), time.perf_counter() and time.monotonic() functions can
no longer fail with a Python fatal error, instead raise a regular
Python exception on failure.

Remove _PyTime_Init(): don't check system, monotonic and perf counter
clocks at startup anymore.

On error, _PyTime_GetSystemClock(), _PyTime_GetMonotonicClock() and
_PyTime_GetPerfCounter() now silently ignore the error and return 0.
They cannot fail with a Python fatal error anymore.

Add py_mach_timebase_info() and win_perf_counter_frequency()
sub-functions.
2020-11-16 16:08:05 +01:00
Victor Stinner b3b98082c5
bpo-41617: Add _Py__has_builtin() macro (GH-23260)
Fix building pycore_bitutils.h internal header on old clang version
without __builtin_bswap16() (ex: Xcode 4.6.3 on Mac OS X 10.7).

Add a new private _Py__has_builtin() macro to check for availability
of a preprocessor builtin function.

Co-Authored-By: Joshua Root <jmr@macports.org>

Co-authored-by: Joshua Root <jmr@macports.org>
2020-11-13 15:38:17 +01:00
Victor Stinner ef75a625cd
bpo-42260: Initialize time and warnings earlier at startup (GH-23249)
* Call _PyTime_Init() and _PyWarnings_InitState() earlier during the
  Python initialization.
* Inline _PyImportHooks_Init() into _PySys_InitCore().
* The _warnings initialization function no longer call
  _PyWarnings_InitState() to prevent resetting filters_version to 0.
* _PyWarnings_InitState() now returns an int and no longer clear the
  state in case of error (it's done anyway at Python exit).
* Rework init_importlib(), fix refleaks on errors.
2020-11-12 15:14:13 +01:00