Commit Graph

6631 Commits

Author SHA1 Message Date
Lysandros Nikolaou 41d5b94af4
bpo-40246: Report a better error message for invalid string prefixes (GH-19476) 2020-04-12 19:21:00 +01:00
Serhiy Storchaka 8f87eefe7f
bpo-39943: Add the const qualifier to pointers on non-mutable PyBytes data. (GH-19472) 2020-04-12 14:58:27 +03:00
Serhiy Storchaka cd8295ff75
bpo-39943: Add the const qualifier to pointers on non-mutable PyUnicode data. (GH-19345) 2020-04-11 10:48:40 +03:00
Victor Stinner b54a99d643
bpo-40082: trip_signal() uses the main interpreter (GH-19441)
Fix the signal handler: it now always uses the main interpreter,
rather than trying to get the current Python thread state.

The following function now accepts an interpreter, instead of a
Python thread state:

* _PyEval_SignalReceived()
* _Py_ThreadCanHandleSignals()
* _PyEval_AddPendingCall()
* COMPUTE_EVAL_BREAKER()
* SET_GIL_DROP_REQUEST(), RESET_GIL_DROP_REQUEST()
* SIGNAL_PENDING_CALLS(), UNSIGNAL_PENDING_CALLS()
* SIGNAL_PENDING_SIGNALS(), UNSIGNAL_PENDING_SIGNALS()
* SIGNAL_ASYNC_EXC(), UNSIGNAL_ASYNC_EXC()

Py_AddPendingCall() now uses the main interpreter if it fails to the
current Python thread state.

Convert _PyThreadState_GET() and PyInterpreterState_GET_UNSAFE()
macros to static inline functions.
2020-04-08 23:35:05 +02:00
Victor Stinner cfc3c2f8b3
bpo-37127: Remove _pending_calls.finishing (GH-19439) 2020-04-08 22:10:53 +02:00
Victor Stinner dda5d6e071
bpo-40226: PyInterpreterState_Delete() deletes pending calls (GH-19436)
PyInterpreterState_New() is now responsible to create pending calls,
PyInterpreterState_Delete() now deletes pending calls.

* Rename _PyEval_InitThreads() to _PyEval_InitGIL() and rename
  _PyEval_InitGIL() to _PyEval_FiniGIL().
* _PyEval_InitState() and PyEval_FiniState() now create and delete
  pending calls. _PyEval_InitState() now returns -1 on memory
  allocation failure.
* Add init_interp_create_gil() helper function: code shared by
  Py_NewInterpreter() and Py_InitializeFromConfig().
* init_interp_create_gil() now also calls _PyEval_FiniGIL(),
  _PyEval_InitGIL() and _PyGILState_Init() in subinterpreters, but
  these functions now do nothing when called from a subinterpreter.
2020-04-08 17:54:59 +02:00
Victor Stinner a15e260b70
bpo-40170: Add _PyIndex_Check() internal function (GH-19426)
Add _PyIndex_Check() function to the internal C API: fast inlined
verson of PyIndex_Check().

Add Include/internal/pycore_abstract.h header file.

Replace PyIndex_Check() with _PyIndex_Check() in C files of Objects
and Python subdirectories.
2020-04-08 02:01:56 +02:00
Victor Stinner 87255be696
bpo-40089: Add _at_fork_reinit() method to locks (GH-19195)
Add a private _at_fork_reinit() method to _thread.Lock,
_thread.RLock, threading.RLock and threading.Condition classes:
reinitialize the lock after fork in the child process; reset the lock
to the unlocked state.

Rename also the private _reset_internal_locks() method of
threading.Event to _at_fork_reinit().

* Add _PyThread_at_fork_reinit() private function. It is excluded
  from the limited C API.
* threading.Thread._reset_internal_locks() now calls
  _at_fork_reinit() on self._tstate_lock rather than creating a new
  Python lock object.
2020-04-07 23:11:49 +02:00
Zackery Spytz 08050e959e
bpo-40147: Fix a compiler warning on Windows in Python/compile.c (GH-19389)
Change the type of nkeywords to Py_ssize_t.
2020-04-06 07:47:47 +01:00
Batuhan Taşkaya 1b21573a89
closes bpo-40184: Only define pysiphash if the hash algorithm is SIPHASH24. (GH-19369) 2020-04-04 16:25:12 -05:00
Pablo Galindo 40cf35c5b0
bpo-40141: Include the value in the column position for keyword AST nodes (GH-19348) 2020-04-03 21:02:26 +01:00
Pablo Galindo 254ec78341
bpo-40147: Move the check for duplicate keywords to the compiler (GH-19289) 2020-04-03 20:37:13 +01:00
Pablo Galindo 168660b547
bpo-40141: Add line and column information to ast.keyword nodes (GH-19283) 2020-04-02 00:47:39 +01:00
Serhiy Storchaka 2c003eff8f
bpo-39943: Clean up marshal.c. (GH-19236)
* Add consts.
* Remove redundant casts and checks.
* Use concrete C API macros.
* Avoid raising and silencing OverflowError for ints.
2020-03-31 23:23:21 +03:00
Victor Stinner 400e1dbcad
Document most common signals (GH-19245)
Document individual signals (only the most common signals):
description, default action, availability.
2020-03-31 19:13:10 +02:00
Victor Stinner 8d84adcd73
bpo-32591: _PyErr_WarnUnawaitedCoroutine() sets source (GH-19247)
The _PyErr_WarnUnawaitedCoroutine() fallback now also sets the
coroutine object as the source of the warning, as done by the Python
implementation warnings._warn_unawaited_coroutine().

Moreover, don't truncate the coroutine name: Python supports
arbitrary string length to format the message.
2020-03-31 17:25:12 +02:00
Andy Lester fc2d8d62af
bpo-39943: Remove unnecessary casts in import.c that remove constness (GH-19209) 2020-03-30 13:19:14 -07:00
Victor Stinner 1c1e68cf3e
bpo-38644: Use _PySys_Audit(): pass tstate explicitly (GH-19183)
Add the dependency to tstate more explicit.
2020-03-27 15:11:45 +01:00
Victor Stinner 71a3522ef8
bpo-38644: Make tstate more explicit inside pystate.c (GH-19182)
Fix PyInterpreterState_New(): Don't call PyErr_SetString() when there
is no current Python thread state (if tstate is NULL).
2020-03-26 22:46:14 +01:00
Victor Stinner 728189884e
bpo-38644: Pass tstate explicitly in signalmodule.c (GH-19184)
PyOS_InterruptOccurred() now checks _Py_ThreadCanHandleSignals()
before checking if SIGINT is tripped.
2020-03-26 22:28:11 +01:00
Victor Stinner 08faf0016e
bpo-38644: Add _PySys_Audit() which takes tstate (GH-19180)
Add _PySys_Audit() function to the internal C API: similar to
PySys_Audit(), but requires a mandatory tstate parameter.

Cleanup sys_audit_tstate() code: remove code path for NULL tstate,
since the function exits at entry if tstate is NULL. Remove also code
path for NULL tstate->interp: should_audit() now ensures that it is
not NULL (even if tstate->interp cannot be NULL in practice).

PySys_AddAuditHook() now checks if tstate is not NULL to decide if
tstate can be used or not, and tstate is set to NULL if the runtime
is not initialized yet.

Use _PySys_Audit() in sysmodule.c.
2020-03-26 18:57:32 +01:00
Zackery Spytz 79ceccd1ec
bpo-38410: Properly handle PySys_Audit() failures (GH-16657) 2020-03-26 12:11:13 +00:00
Furkan Önder cb6534e1a8
bpo-40067: Improve error messages for multiple star expressions in assignments (GH-19168)
Co-Authored-By: Batuhan Taşkaya <isidentical@gmail.com>
Co-Authored-By: Pablo Galindo <Pablogsal@gmail.com>
2020-03-26 01:54:31 +00:00
Victor Stinner 5c3cda0d1a
bpo-39947: Add PyThreadState_GetID() function (GH-19163)
Add PyThreadState_GetID() function: get the unique identifier of a
Python thread state.
2020-03-25 21:23:53 +01:00
Victor Stinner 0e427c6d15
bpo-39947: Add _PyThreadState_GetDict() function (GH-19160) 2020-03-25 21:22:55 +01:00
Victor Stinner 87d3b9db4a
bpo-39882: Add _Py_FatalErrorFormat() function (GH-19157) 2020-03-25 19:27:36 +01:00
Andy Lester 7668a8bc93
Use calloc-based functions, not malloc. (GH-19152) 2020-03-24 23:26:44 -05:00
Victor Stinner 83d46e0622
bpo-40050: Fix importlib._bootstrap_external (GH-19135)
Remove two unused imports: _thread and _weakref. Avoid creating a new
winreg builtin module if it's already available in sys.modules.

The winreg module is now stored as "winreg" rather than "_winreg".
2020-03-24 18:03:34 +01:00
Victor Stinner 5804f878e7
bpo-20526: Fix PyThreadState_Clear(): don't decref frame (GH-19120)
PyThreadState.frame is a borrowed reference, not a strong reference:
PyThreadState_Clear() must not call Py_CLEAR(tstate->frame).

Remove test_threading.test_warnings_at_exit(): we cannot warranty
that the Python thread state of daemon threads is cleared in a
reliable way during Python shutdown.
2020-03-24 16:32:26 +01:00
Serhiy Storchaka bace59d8b8
bpo-39999: Improve compatibility of the ast module. (GH-19056)
* Re-add removed classes Suite, slice, Param, AugLoad and AugStore.
* Add docstrings for dummy classes.
* Add docstrings for attribute aliases.
* Set __module__ to "ast" instead of "_ast".
2020-03-22 20:33:34 +02:00
Ronald Oussoren 044cf94f61
bpo-22490: Remove __PYVENV_LAUNCHER__ from environment during launch (GH-9516)
* bpo-22490: Remove "__PYVENV_LAUNCHER__" from the shell environment on macOS

This changeset removes the environment varialbe "__PYVENV_LAUNCHER__"
during interpreter launch as it is only needed to communicate between
the stub executable in framework installs and the actual interpreter.

Leaving the environment variable present may lead to misbehaviour when
launching other scripts.

* Actually commit the changes for issue 22490...

* Correct typo

Co-Authored-By: Nicola Soranzo <nicola.soranzo@gmail.com>

* Run make patchcheck

Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
Co-authored-by: Nicola Soranzo <nicola.soranzo@gmail.com>
2020-03-22 14:31:46 -04:00
Dong-hee Na 05e4a296ec
bpo-40024: Add PyModule_AddType() helper function (GH-19088) 2020-03-22 17:17:34 +01:00
Victor Stinner 6723e933c4
bpo-39946: Remove _PyThreadState_GetFrame (GH-19094)
Remove _PyRuntime.getframe hook and remove _PyThreadState_GetFrame
macro which was an alias to _PyRuntime.getframe. They were only
exposed by the internal C API. Remove also PyThreadFrameGetter type.
2020-03-20 17:46:56 +01:00
Victor Stinner fd1e1a18fa
bpo-39947: Add PyThreadState_GetFrame() function (GH-19092)
Add PyThreadState_GetFrame() function: get the current frame
of a Python thread state.
2020-03-20 15:51:45 +01:00
Victor Stinner d83168854e
bpo-40010: Optimize pending calls in multithreaded applications (GH-19091)
If a thread different than the main thread schedules a pending call
(Py_AddPendingCall()), the bytecode evaluation loop is no longer
interrupted at each bytecode instruction to check for pending calls
which cannot be executed. Only the main thread can execute pending
calls.

Previously, the bytecode evaluation loop was interrupted at each
instruction until the main thread executes pending calls.

* Add _Py_ThreadCanHandlePendingCalls() function.
* SIGNAL_PENDING_CALLS() now only sets eval_breaker to 1 if the
  current thread can execute pending calls. Only the main thread can
  execute pending calls.
2020-03-20 14:50:35 +01:00
Victor Stinner d2a8e5b42c
bpo-40010: COMPUTE_EVAL_BREAKER() checks for subinterpreter (GH-19087)
COMPUTE_EVAL_BREAKER() now also checks if the Python thread state
belongs to the main interpreter. Don't break the evaluation loop if
there are pending signals but the Python thread state it belongs to a
subinterpeter.

* Add _Py_IsMainThread() function.
* Add _Py_ThreadCanHandleSignals() function.
2020-03-20 13:38:58 +01:00
Victor Stinner da2914db4b
bpo-40010: Pass tstate to ceval GIL functions (GH-19077)
* Add eval_frame_handle_pending() helper function: cold code path.
* Fix PyEval_ReleaseLock(): don't dereference tstate if it's NULL.
2020-03-20 09:29:08 +01:00
Victor Stinner a36adfa6bb
bpo-39877: 4th take_gil() fix for daemon threads (GH-19080)
bpo-39877, bpo-40010: Add a third tstate_must_exit() check in
take_gil() to prevent using tstate which has been freed.
2020-03-19 19:48:25 +01:00
Victor Stinner 5a3a71dddb
bpo-40010: Optimize signal handling in multithreaded applications (GH-19067)
If a thread different than the main thread gets a signal, the
bytecode evaluation loop is no longer interrupted at each bytecode
instruction to check for pending signals which cannot be handled.
Only the main thread of the main interpreter can handle signals.

Previously, the bytecode evaluation loop was interrupted at each
instruction until the main thread handles signals.

Changes:

* COMPUTE_EVAL_BREAKER() and SIGNAL_PENDING_SIGNALS() no longer set
  eval_breaker to 1 if the current thread cannot handle signals.
* take_gil() now always recomputes eval_breaker.
2020-03-19 17:40:12 +01:00
Batuhan Taşkaya 9052f7a41b
bpo-39562: Allow executing asynchronous comprehensions in the asyncio REPL (GH-18968)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
2020-03-19 11:35:44 +00:00
Batuhan Taşkaya 0ac59f93c0
bpo-40000: Improve error messages when validating invalid ast.Constant nodes (GH-19055)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
2020-03-19 11:32:28 +00:00
Victor Stinner 50e6e99178
bpo-39984: Move pending calls to PyInterpreterState (GH-19066)
If Py_AddPendingCall() is called in a subinterpreter, the function is
now scheduled to be called from the subinterpreter, rather than being
called from the main interpreter.

Each subinterpreter now has its own list of scheduled calls.

* Move pending and eval_breaker fields from _PyRuntimeState.ceval
  to PyInterpreterState.ceval.
* new_interpreter() now calls _PyEval_InitThreads() to create
  pending calls lock.
* Fix Py_AddPendingCall() for subinterpreters. It now calls
  _PyThreadState_GET() which works in a subinterpreter if the
  caller holds the GIL, and only falls back on
  PyGILState_GetThisThreadState() if _PyThreadState_GET()
  returns NULL.
2020-03-19 02:41:21 +01:00
Pablo Galindo d112c600ab
bpo-39220: Do not optimise annotation if 'from __future__ import annotations' is used (GH-17866)
Do not apply AST-based optimizations if 'from __future__ import annotations' is used in order to
prevent information lost in the final version of the annotations.
2020-03-18 23:02:09 +00:00
Victor Stinner 8849e5962b
bpo-39984: trip_signal() uses PyGILState_GetThisThreadState() (GH-19061)
bpo-37127, bpo-39984:

* trip_signal() and Py_AddPendingCall() now get the current Python
  thread state using PyGILState_GetThisThreadState() rather than
  _PyRuntimeState_GetThreadState() to be able to get it even if the
  GIL is released.
* _PyEval_SignalReceived() now expects tstate rather than ceval.
* Remove ceval parameter of _PyEval_AddPendingCall(): ceval is now
  get from tstate parameter.
2020-03-18 19:28:53 +01:00
Victor Stinner 56bfdebfb1
bpo-39984: Pass tstate to _PyEval_SignalAsyncExc() (GH-19049)
_PyEval_SignalAsyncExc() and _PyEval_FiniThreads() now expect tstate,
instead of ceval.
2020-03-18 09:26:25 +01:00
Victor Stinner 29356e03d4
bpo-39877: Fix take_gil() for daemon threads (GH-19054)
bpo-39877, bpo-39984: If the thread must exit, don't access tstate to
prevent a potential crash: tstate memory has been freed.
2020-03-18 03:04:33 +01:00
Victor Stinner 23ef89db7a
bpo-39984: _PyThreadState_DeleteCurrent() takes tstate (GH-19051)
* _PyThreadState_DeleteCurrent() now takes tstate rather than
  runtime.
* Add ensure_tstate_not_null() helper to pystate.c.
* Add _PyEval_ReleaseLock() function.
* _PyThreadState_DeleteCurrent() now calls
  _PyEval_ReleaseLock(tstate) and frees PyThreadState memory after
  this call, not before.
* PyGILState_Release(): rename "tcur" variable to "tstate".
2020-03-18 02:26:04 +01:00
Victor Stinner d7fabc1162
bpo-39984: Pass tstate to handle_signals() (GH-19050)
handle_signals() and make_pending_calls() now expect tstate rather
than runtime.
2020-03-18 01:56:21 +01:00
Serhiy Storchaka 6b97598fb6
bpo-39988: Remove ast.AugLoad and ast.AugStore node classes. (GH-19038) 2020-03-17 23:41:08 +02:00
Victor Stinner dab8423d22
bpo-39984: Add PyInterpreterState.ceval (GH-19047)
subinterpreters: Move _PyRuntimeState.ceval.tracing_possible to
PyInterpreterState.ceval.tracing_possible: each interpreter now has
its own variable.

Changes:

* Add _ceval_state structure.
* Add PyInterpreterState.ceval field.
* _PyEval_EvalFrameDefault(): add ceval2 variable (struct _ceval_state*).
* Rename _PyEval_Initialize() to _PyEval_InitRuntimeState().
* Add _PyEval_InitState().
* Don't export internal _Py_FinishPendingCalls() and
  _PyEval_FiniThreads() functions anymore.
2020-03-17 18:56:44 +01:00
Serhiy Storchaka 61cb3d02b8
bpo-39987: Simplify setting lineno in the compiler. (GH-19037) 2020-03-17 18:07:30 +02:00
Victor Stinner f6a5850782
bpo-35370: PyEval_SetTrace() logs unraisable error (GH-18977)
If PySys_Audit() fails in PyEval_SetProfile() or PyEval_SetTrace(),
log the error as an unraisable exception.
2020-03-16 17:41:44 +01:00
Dong-hee Na 87ec86c425
bpo-37207: Add _PyArg_NoKwnames() helper function (GH-18980) 2020-03-16 15:06:20 +01:00
Batuhan Taşkaya 4ab362cec6
bpo-39638: Keep ASDL signatures in the AST nodes (GH-18515) 2020-03-16 10:12:53 +02:00
Batuhan Taşkaya 8689209e03
bpo-39969: Remove ast.Param node class as is no longer used (GH-19020) 2020-03-15 19:32:17 +00:00
Pablo Galindo 90235810ec
bpo-39965: Correctly raise SyntaxError if await is used outside async functions when PyCF_ALLOW_TOP_LEVEL_AWAIT is set (GH-19010) 2020-03-15 04:29:22 +00:00
Hai Shi 57c7810489
bpo-39585: Delete a pending comment in _warning.c (GH-18414) 2020-03-14 15:40:58 +02:00
Victor Stinner 8fb02b6e19
bpo-39947: Add PyThreadState_GetInterpreter() (GH-18981)
Add PyThreadState_GetInterpreter(tstate): get the interpreter of a
Python thread state.
2020-03-13 23:38:08 +01:00
Victor Stinner be79373a78
bpo-39947: Add PyInterpreterState_Get() function (GH-18979)
* Rename _PyInterpreterState_Get() to PyInterpreterState_Get() and
  move it the limited C API.
* Add _PyInterpreterState_Get() alias to PyInterpreterState_Get() for
  backward compatibility with Python 3.8.
2020-03-13 18:15:33 +01:00
Victor Stinner ff4584caca
bpo-39947: Use _PyInterpreterState_GET_UNSAFE() (GH-18978)
Replace _PyInterpreterState_Get() function call with
_PyInterpreterState_GET_UNSAFE() macro which is more efficient but
don't check if tstate or interp is NULL.

_Py_GetConfigsAsDict() now uses _PyThreadState_GET().
2020-03-13 18:03:56 +01:00
Victor Stinner 309d7cc5df
bpo-35370: Add _PyEval_SetTrace() function (GH-18975)
* sys.settrace(), sys.setprofile() and _lsprof.Profiler.enable() now
  properly report PySys_Audit() error if "sys.setprofile" or
  "sys.settrace" audit event is denied.
* Add _PyEval_SetProfile() and _PyEval_SetTrace() function: similar
  to PyEval_SetProfile() and PyEval_SetTrace() but take a tstate
  parameter and return -1 on error.
* Add _PyObject_FastCallTstate() function.
2020-03-13 16:39:12 +01:00
Victor Stinner 0b72b23fb0
bpo-38500: Add _PyInterpreterState_SetEvalFrameFunc() (GH-17340)
PyInterpreterState.eval_frame function now requires a tstate (Python
thread state) parameter.

Add private functions to the C API to get and set the frame
evaluation function:

* Add tstate parameter to _PyFrameEvalFunction function type.
* Add _PyInterpreterState_GetEvalFrameFunc() and
  _PyInterpreterState_SetEvalFrameFunc() functions.
* Add tstate parameter to _PyEval_EvalFrameDefault().
2020-03-12 23:18:39 +01:00
Andy Lester 75cd5bf428
Remove unused args from two pylifecycle.c functions (GH-18867)
* Remove unused tstate argument from init_set_builtins_open()
* Replace fd (int) with tstate (PyThreadState *) in in _Py_FatalError_PrintExc()
2020-03-12 08:49:05 +01:00
bobince 64838ce717
bpo-39847: EnterNonRecursiveMutex() uses GetTickCount64() (GH-18780)
The 32-bit (49-day) TickCount relied on in EnterNonRecursiveMutex can overflow
in the gap between the 'target' time and the 'now' time WaitForSingleObjectEx
returns, causing the loop to think it needs to wait another 49 days. This is
most likely to happen when the machine is hibernated during
WaitForSingleObjectEx.

This makes acquiring a lock/event/etc from the _thread or threading module
appear to never timeout.

Replace with GetTickCount64 - this is OK now Python no longer supports XP which
lacks it, and is in use for time.monotonic().

Co-authored-by: And Clover <and.clover@bromium.com>
2020-03-12 00:39:02 +01:00
Andy Lester 76d5877b72
closes bpo-39922: Remove unused args from four functions. (GH-18893) 2020-03-10 19:18:12 -07:00
Victor Stinner 4e53abb0f4
bpo-38631: _PyGILState_Init() returns PyStatus (GH-18908)
_PyGILState_Init() now returns PyStatus rather than calling
Py_FatalError() on failure.
2020-03-10 23:49:16 +01:00
Serhiy Storchaka 13d52c2686
bpo-34822: Simplify AST for subscription. (GH-9605)
* Remove the slice type.
* Make Slice a kind of the expr type instead of the slice type.
* Replace ExtSlice(slices) with Tuple(slices, Load()).
* Replace Index(value) with a value itself.

All non-terminal nodes in AST for expressions are now of the expr type.
2020-03-10 18:52:34 +02:00
Victor Stinner 8510f43078
bpo-1294959: Add sys.platlibdir attribute (GH-18381)
Add --with-platlibdir option to the configure script: name of the
platform-specific library directory, stored in the new sys.platlitdir
attribute. It is used to build the path of platform-specific dynamic
libraries and the path of the standard library.

It is equal to "lib" on most platforms. On Fedora and SuSE, it is
equal to "lib64" on 64-bit systems.

Co-Authored-By: Jan Matějek <jmatejek@suse.com>
Co-Authored-By: Matěj Cepl <mcepl@cepl.eu>
Co-Authored-By: Charalampos Stratakis <cstratak@redhat.com>
2020-03-10 09:53:09 +01:00
Victor Stinner b4698ecfdb
bpo-39877: Deprecate PyEval_InitThreads() (GH-18892)
Deprecated PyEval_InitThreads() and PyEval_ThreadsInitialized().
Calling PyEval_InitThreads() now does nothing.
2020-03-10 01:28:54 +01:00
Victor Stinner 175a704abf
bpo-39877: PyGILState_Ensure() don't call PyEval_InitThreads() (GH-18891)
PyGILState_Ensure() doesn't call PyEval_InitThreads() anymore when a
new Python thread state is created. The GIL is created by
Py_Initialize() since Python 3.7, it's not needed to call
PyEval_InitThreads() explicitly.

Add an assertion to ensure that the GIL is already created.
2020-03-10 00:37:48 +01:00
Victor Stinner 9ad58acbe8
bpo-19466: Py_Finalize() clears daemon threads earlier (GH-18848)
Clear the frames of daemon threads earlier during the Python shutdown to
call objects destructors. So "unclosed file" resource warnings are now
emitted for daemon threads in a more reliable way.

Cleanup _PyThreadState_DeleteExcept() code: rename "garbage" to
"list".
2020-03-09 23:37:49 +01:00
Victor Stinner 9229eeee10
bpo-39877: take_gil() checks tstate_must_exit() twice (GH-18890)
take_gil() now also checks tstate_must_exit() after acquiring
the GIL: exit the thread if Py_Finalize() has been called.
2020-03-09 23:10:53 +01:00
Serhiy Storchaka b7e9525f9c
bpo-36287: Make ast.dump() not output optional fields and attributes with default values. (GH-18843)
The default values for optional fields and attributes of AST nodes are now set
as class attributes (e.g. Constant.kind is set to None).
2020-03-10 00:07:47 +02:00
Victor Stinner 85f5a69ae1
bpo-39877: Refactor take_gil() function (GH-18885)
* Remove ceval parameter of take_gil(): get it from tstate.
* Move exit_thread_if_finalizing() call inside take_gil(). Replace
  exit_thread_if_finalizing() with tstate_must_exit(): the caller is
  now responsible to call PyThread_exit_thread().
* Move is_tstate_valid() assertion inside take_gil(). Remove
  is_tstate_valid(): inline code into take_gil().
* Move gil_created() assertion inside take_gil().
2020-03-09 22:12:04 +01:00
Victor Stinner 111e4ee52a
bpo-39877: Py_Initialize() pass tstate to PyEval_InitThreads() (GH-18884) 2020-03-09 21:24:14 +01:00
Victor Stinner 3225b9f973
bpo-39877: Remove useless PyEval_InitThreads() calls (GH-18883)
Py_Initialize() calls PyEval_InitThreads() since Python 3.7. It's no
longer needed to call it explicitly.
2020-03-09 20:56:57 +01:00
Serhiy Storchaka eebaa9bfc5
bpo-38249: Expand Py_UNREACHABLE() to __builtin_unreachable() in the release mode. (GH-16329)
Co-authored-by: Victor Stinner <vstinner@python.org>
2020-03-09 20:49:52 +02:00
idomic fc72ab6913
bpo-38691: importlib ignores PYTHONCASEOK if -E is used (GH-18627)
The importlib module now ignores the PYTHONCASEOK
environment variable when the -E or -I command line
options are being used.
2020-03-09 12:57:53 +01:00
Andy Lester 28ca43b7e3
closes bpo-39898: Remove unused arg from append_formattedvalue. (GH-18840) 2020-03-08 09:53:59 -07:00
Victor Stinner eb4e2ae2b8
bpo-39877: Fix PyEval_RestoreThread() for daemon threads (GH-18811)
* exit_thread_if_finalizing() does now access directly _PyRuntime
  variable, rather than using tstate->interp->runtime since tstate
  can be a dangling pointer after Py_Finalize() has been called.
* exit_thread_if_finalizing() is now called *before* calling
  take_gil(). _PyRuntime.finalizing is an atomic variable,
  we don't need to hold the GIL to access it.
* Add ensure_tstate_not_null() function to check that tstate is not
  NULL at runtime. Check tstate earlier. take_gil() does not longer
  check if tstate is NULL.

Cleanup:

* PyEval_RestoreThread() no longer saves/restores errno: it's already
  done inside take_gil().
* PyEval_AcquireLock(), PyEval_AcquireThread(),
  PyEval_RestoreThread() and _PyEval_EvalFrameDefault() now check if
  tstate is valid with the new is_tstate_valid() function which uses
  _PyMem_IsPtrFreed().
2020-03-08 11:57:45 +01:00
Brandt Bucher d5aa2e941c
bpo-39890: Don't mutate the AST when compiling starred assignments (GH-18833) 2020-03-08 03:44:18 +00:00
Andy Lester aa450a0364
closes bpo-39886: Remove unused arg from config_get_stdio_errors. (GH-18823) 2020-03-07 09:36:04 -08:00
Andy Lester ad0c775ea2
closes bpo-39878: Remove unused arguments from static functions. (GH-18822)
calc_number_widths -> PyObject *number

fill_number -> Py_ssize_t d_end
2020-03-07 09:29:10 -08:00
Victor Stinner 9e5d30cc99
bpo-39882: Py_FatalError() logs the function name (GH-18819)
The Py_FatalError() function is replaced with a macro which logs
automatically the name of the current function, unless the
Py_LIMITED_API macro is defined.

Changes:

* Add _Py_FatalErrorFunc() function.
* Remove the function name from the message of Py_FatalError() calls
  which included the function name.
* Update tests.
2020-03-07 00:54:20 +01:00
Victor Stinner 7b3c252dc7
bpo-39877: _PyRuntimeState.finalizing becomes atomic (GH-18816)
Convert _PyRuntimeState.finalizing field to an atomic variable:

* Rename it to _finalizing
* Change its type to _Py_atomic_address
* Add _PyRuntimeState_GetFinalizing() and _PyRuntimeState_SetFinalizing()
  functions
* Remove _Py_CURRENTLY_FINALIZING() function: replace it with testing
  directly _PyRuntimeState_GetFinalizing() value

Convert _PyRuntimeState_GetThreadState() to static inline function.
2020-03-07 00:24:23 +01:00
Andy Lester 557287075c
bpo-39573: Use Py_IS_TYPE() macro to check for types (GH-18809)
Co-authored-by: Victor Stinner <vstinner@python.org>
2020-03-06 23:53:17 +01:00
Andy Lester 9566842e89
closes bpo-39872: Remove unused args from symtable_exit_block and symtable_visit_annotations. (GH-18800) 2020-03-06 07:46:04 -08:00
Andy Lester da4d656e95
closes bpo-39870: Remove unused arg from sys_displayhook_unencodable. (GH-18796)
Also move int err to its innermost scope.
2020-03-05 20:34:36 -08:00
Victor Stinner efc28bbbee
Add a comment to _Py_RestoreSignals() (GH-18792)
subprocess _posix_spawn() should stay in sync with _Py_RestoreSignals().
2020-03-05 18:13:56 +01:00
Batuhan Taşkaya d82e469048
bpo-39639: Remove the AST "Suite" node and associated code (GH-18513)
The AST "Suite" node is no longer used and it can be removed from the ASDL definition and related structures (compiler, visitors, ...).

Co-Authored-By: Victor Stinner <vstinner@python.org>
Co-authored-by: Brett Cannon <54418+brettcannon@users.noreply.github.com>
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
2020-03-04 16:16:46 +00:00
Andy Lester dffe4c0709
bpo-39573: Finish converting to new Py_IS_TYPE() macro (GH-18601) 2020-03-04 14:15:20 +01:00
Brandt Bucher be501ca241
bpo-39702: Relax grammar restrictions on decorators (PEP 614) (GH-18570) 2020-03-03 14:25:44 -08:00
Serhiy Storchaka ae75a29435
bpo-39831: Remove outdated comment. (GH-18764) 2020-03-03 19:43:29 +02:00
Armin Rigo 6daa37fd42
bpo-38091: Import deadlock detection causes deadlock (GH-17518)
Automerge-Triggered-By: @brettcannon
2020-03-02 17:37:25 -08:00
Stefan Krah b3b9ade4a3
bpo-39776: Lock ++interp->tstate_next_unique_id. (GH-18746) (#18746)
- Threads created by PyGILState_Ensure() could have a duplicate tstate->id.
2020-03-02 21:22:36 +01:00
Serhiy Storchaka 2d2f85517f
bpo-39831: Fix a reference leak in PyErr_WarnEx(). (GH-18750) 2020-03-02 22:05:08 +02:00
Victor Stinner 66b7973c1b
bpo-39796: Fix _warnings module initialization (GH-18739)
* Add _PyWarnings_InitState() which only initializes the _warnings
  module state (tstate->interp->warnings) without creating a module
  object
* Py_InitializeFromConfig() now calls _PyWarnings_InitState() instead
  of _PyWarnings_Init()
* Rename also private functions of _warnings.c to avoid confusion
  between the public C API and the private C API.
2020-03-02 15:02:18 +01:00
Serhiy Storchaka 28d0bcac8b
bpo-38913: Fix segfault in Py_BuildValue("(s#O)", ...) if entered with exception raised. (GH-18656) 2020-03-02 08:42:39 +02:00
Andy Lester 3fe9117779
closes bpo-39803: Remove unused str from _PyLong_FormatAdvancedWriter. (GH-18709) 2020-03-01 13:26:43 -08:00
Batuhan Taşkaya 185903de12
bpo-39520: Fix un-parsing of ext slices with no dimensions (GH-18304) 2020-03-01 20:07:22 +00:00
Denis Chernikov baf29b2216
Reuse identifier of PREDICT macros as PREDICT_ID (GH-17155)
In function `_PyEval_EvalFrameDefault`, macros PREDICT and PREDICTED use the same identifier creation scheme, which may be shared between them, reducing code repetition, and do ensure that the same identifier is generated.
2020-02-21 10:17:50 +01:00
Victor Stinner 4dee92b0ad
Revert "bpo-38691 Added a switch to ignore PYTHONCASEOK when -E or -I flags passed (#18314)" (GH-18553)
This reverts commit d83b6600b2.
2020-02-19 14:23:47 +01:00
Dong-hee Na 1b55b65638
bpo-39573: Clean up modules and headers to use Py_IS_TYPE() function (GH-18521) 2020-02-17 11:09:15 +01:00
idomic d83b6600b2
bpo-38691 Added a switch to ignore PYTHONCASEOK when -E or -I flags passed (#18314)
* Hard reset + cherry piciking the changes.

* 📜🤖 Added by blurb_it.

* Added @vstinner News

* Update Misc/NEWS.d/next/Library/2020-02-11-13-01-38.bpo-38691.oND8Sk.rst

Co-Authored-By: Victor Stinner <vstinner@python.org>

* Hard reset to master

* Hard reset to master + latest changes

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
2020-02-17 10:05:11 +01:00
Andy Lester 7386a70746
closes bpo-39630: Update pointers to string literals to be const char *. (GH-18510) 2020-02-13 20:42:56 -08:00
Victor Stinner e9e7d284c4
bpo-35081: Move dtoa.h header to the internal C API (GH-18489)
Move the dtoa.h header file to the internal C API as pycore_dtoa.h:
it only contains private functions (prefixed by "_Py").

The math and cmath modules must now be compiled with the
Py_BUILD_CORE macro defined.
2020-02-12 22:54:42 +01:00
Serhiy Storchaka 6e619c48b8
bpo-39474: Fix AST pos for expressions like (a)(b), (a)[b] and (a).b. (GH-18477) 2020-02-12 22:37:49 +02:00
Serhiy Storchaka 8c579b1cc8
bpo-32856: Optimize the assignment idiom in comprehensions. (GH-16814)
Now `for y in [expr]` in comprehensions is as fast as a simple
assignment `y = expr`.
2020-02-12 12:18:59 +02:00
Andy Lester e6be9b59a9
closes bpo-39605: Fix some casts to not cast away const. (GH-18453)
gcc -Wcast-qual turns up a number of instances of casting away constness of pointers. Some of these can be safely modified, by either:

Adding the const to the type cast, as in:

-    return _PyUnicode_FromUCS1((unsigned char*)s, size);
+    return _PyUnicode_FromUCS1((const unsigned char*)s, size);

or, Removing the cast entirely, because it's not necessary (but probably was at one time), as in:

-    PyDTrace_FUNCTION_ENTRY((char *)filename, (char *)funcname, lineno);
+    PyDTrace_FUNCTION_ENTRY(filename, funcname, lineno);

These changes will not change code, but they will make it much easier to check for errors in consts
2020-02-11 18:28:35 -08:00
Petr Viktorin ffd9753a94
bpo-39245: Switch to public API for Vectorcall (GH-18460)
The bulk of this patch was generated automatically with:

    for name in \
        PyObject_Vectorcall \
        Py_TPFLAGS_HAVE_VECTORCALL \
        PyObject_VectorcallMethod \
        PyVectorcall_Function \
        PyObject_CallOneArg \
        PyObject_CallMethodNoArgs \
        PyObject_CallMethodOneArg \
    ;
    do
        echo $name
        git grep -lwz _$name | xargs -0 sed -i "s/\b_$name\b/$name/g"
    done

    old=_PyObject_FastCallDict
    new=PyObject_VectorcallDict
    git grep -lwz $old | xargs -0 sed -i "s/\b$old\b/$new/g"

and then cleaned up:

- Revert changes to in docs & news
- Revert changes to backcompat defines in headers
- Nudge misaligned comments
2020-02-11 17:46:57 +01:00
Lysandros Nikolaou d2e1098641
bpo-39579: Fix Attribute end_col_offset to point at the current node (GH-18405) 2020-02-07 15:36:32 -08:00
Victor Stinner 60ac6ed557
bpo-39573: Use Py_SET_SIZE() function (GH-18402)
Replace direct acccess to PyVarObject.ob_size with usage of
the Py_SET_SIZE() function.
2020-02-07 23:18:08 +01:00
Michael Felt de6f38db48
bpo-39502: Fix 64-bit Python PyTime_localtime() on AIX (GH-18285)
Fix time.localtime() on 64-bit AIX to support years before 1902 and after 2038.
2020-02-07 18:56:16 +01:00
Victor Stinner a102ed7d2f
bpo-39573: Use Py_TYPE() macro in Python and Include directories (GH-18391)
Replace direct access to PyObject.ob_type with Py_TYPE().
2020-02-07 02:24:48 +01:00
Victor Stinner a93c51e3a8
bpo-39573: Use Py_REFCNT() macro (GH-18388)
Replace direct acccess to PyObject.ob_refcnt with usage of the
Py_REFCNT() macro.
2020-02-07 00:38:59 +01:00
Brandt Bucher d2f9667264
bpo-38823: Fix refleaks in _ast initialization error path (GH-17276) 2020-02-06 15:45:46 +01:00
Andy Lester 3d06953c34
bpo-39127: Make _Py_HashPointer's argument be const (GH-17690) 2020-02-05 23:09:57 +02:00
Victor Stinner 58f4e1a6ee
bpo-39542: Declare _Py_AddToAllObjects() in pycore_object.h (GH-18368)
_Py_AddToAllObjects() is used in bltinmodule.c and typeobject.c when
Py_TRACE_REFS is defined.

Fix Py_TRACE_REFS build.
2020-02-05 18:24:33 +01:00
Zackery Spytz b439a715cb
bpo-39553: Delete HAVE_SXS protected code (GH-18356)
https://bugs.python.org/issue39553



Automerge-Triggered-By: @zooba
2020-02-04 19:13:00 -08:00
Eddie Elizondo 4590f72259
bpo-38076 Clear the interpreter state only after clearing module globals (GH-18039)
Currently, during runtime destruction, `_PyImport_Cleanup` is clearing the interpreter state before clearing out the modules themselves. This leads to a segfault on modules that rely on the module state to clear themselves up.

For example, let's take the small snippet added in the issue by @DinoV :
```
import _struct

class C:
    def __init__(self):
        self.pack = _struct.pack
    def __del__(self):
        self.pack('I', -42)

_struct.x = C()
```

The module `_struct` uses the module state to run `pack`. Therefore, the module state has to be alive until after the module has been cleared out to successfully run `C.__del__`. This happens at line 606, when `_PyImport_Cleanup` calls `_PyModule_Clear`. In fact, the loop that calls `_PyModule_Clear` has in its comments: 

> Now, if there are any modules left alive, clear their globals to minimize potential leaks.  All C extension modules actually end up here, since they are kept alive in the interpreter state.

That means that we can't clear the module state (which is used by C Extensions) before we run that loop.

Moving `_PyInterpreterState_ClearModules` until after it, fixes the segfault in the code snippet.

Finally, this updates a test in `io` to correctly assert the error that it now throws (since it now finds the io module state). The test that uses this is: `test_create_at_shutdown_without_encoding`. Given this test is now working is a proof that the module state now stays alive even when `__del__` is called at module destruction time. Thus, I didn't add a new tests for this.


https://bugs.python.org/issue38076
2020-02-04 02:29:25 -08:00
Victor Stinner 4b524161a0
bpo-39542: Move object.h debug functions to internal C API (GH-18331)
Move the following functions from the public C API to the internal C
API:

* _PyDebug_PrintTotalRefs(),
* _Py_PrintReferenceAddresses()
* _Py_PrintReferences()
2020-02-03 17:28:26 +01:00
Victor Stinner c6e5c1123b
bpo-39489: Remove COUNT_ALLOCS special build (GH-18259)
Remove:

* COUNT_ALLOCS macro
* sys.getcounts() function
* SHOW_ALLOC_COUNT code in listobject.c
* SHOW_TRACK_COUNT code in tupleobject.c
* PyConfig.show_alloc_count field
* -X showalloccount command line option
* @test.support.requires_type_collecting decorator
2020-02-03 15:17:15 +01:00
Brandt Bucher abb9a448de
Update sum comment. (#18240) 2020-02-01 11:08:34 +00:00
Victor Stinner 4d96b4635a
bpo-39511: PyThreadState_Clear() calls on_delete (GH-18296)
PyThreadState.on_delete is a callback used to notify Python when a
thread completes. _thread._set_sentinel() function creates a lock
which is released when the thread completes. It sets on_delete
callback to the internal release_sentinel() function. This lock is
known as Threading._tstate_lock in the threading module.

The release_sentinel() function uses the Python C API. The problem is
that on_delete is called late in the Python finalization, when the C
API is no longer fully working.

The PyThreadState_Clear() function now calls the
PyThreadState.on_delete callback. Previously, that happened in
PyThreadState_Delete().

The release_sentinel() function is now called when the C API is still
fully working.
2020-02-01 02:30:25 +01:00
Hai Shi 46874c26ee
bpo-39487: Merge duplicated _Py_IDENTIFIER identifiers in C code (GH-18254)
Moving repetitive `_Py_IDENTIFIER` instances to a global location helps identify them more easily in regards to sub-interpreter support.
2020-01-30 15:20:25 -08:00
Victor Stinner 17c68b8107
bpo-38631: Replace Py_FatalError() with assert() in ceval.c (GH-18279)
Replace a few Py_FatalError() calls if tstate is NULL with
assert(tstate != NULL) in ceval.c.

PyEval_AcquireThread(), PyEval_ReleaseThread() and
PyEval_RestoreThread() must never be called with a NULL tstate.
2020-01-30 12:20:48 +01:00
David Carlier aabdeb766b bpo-38960: DTrace build fix for FreeBSD. (GH-17451)
DTrace build fix for FreeBSD.

- allowing passing an extra flag as it need to define the arch size.
- casting some probe's arguments.
2020-01-28 13:53:32 +01:00
Victor Stinner 61f4db8c56
bpo-38644: Pass tstate in ceval.c (GH-18222)
Pass explicitly the Python thread state (tstate) in ceval.c.
2020-01-28 03:37:45 +01:00
Victor Stinner d3a1de2270
bpo-38631: Avoid Py_FatalError() in _PyCodecRegistry_Init() (GH-18217)
_PyCodecRegistry_Init() now reports exceptions to the caller,
rather than calling Py_FatalError().
2020-01-27 23:23:12 +01:00
Mark Shannon 8a4cd700a7
bpo-39320: Handle unpacking of **values in compiler (GH-18141)
* Add DICT_UPDATE and DICT_MERGE bytecodes. Use them for ** unpacking.

* Remove BUILD_MAP_UNPACK and BUILD_MAP_UNPACK_WITH_CALL, as they are now unused.

* Update magic number for ** unpacking opcodes.

* Update dis.rst to incorporate new bytecodes.

* Add blurb entry.
2020-01-27 09:57:45 +00:00
Mark Shannon 13bc13960c
bpo-39320: Handle unpacking of *values in compiler (GH-17984)
* Add three new bytecodes: LIST_TO_TUPLE, LIST_EXTEND, SET_UPDATE. Use them to implement star unpacking expressions.

* Remove four bytecodes BUILD_LIST_UNPACK, BUILD_TUPLE_UNPACK, BUILD_SET_UNPACK and  BUILD_TUPLE_UNPACK_WITH_CALL opcodes as they are now unused.

* Update magic number and dis.rst for new bytecodes.
2020-01-23 09:25:17 +00:00
Pablo Galindo 41f0ef6abb bpo-39427: Document -X opt options in the CLI --help and the man page (GH-18131)
https://bugs.python.org/issue39427



Automerge-Triggered-By: @pablogsal
2020-01-22 17:03:04 -08:00
Dino Viehland 9b6fec4651
bpo-39336: Allow packages to not let their child modules be set on them (#18006)
* bpo-39336: Allow setattr to fail on modules which aren't assignable

When attaching a child module to a package if the object in sys.modules raises an AttributeError (e.g. because it is immutable) it causes the whole import to fail.  This now allows immutable packages to exist and an ImportWarning is reported and the AttributeError exception is ignored.
2020-01-22 16:42:38 -08:00
Niklas Fiekas c5b79003f5 bpo-31031: Unify duplicate bits_in_digit and bit_length (GH-2866)
Add _Py_bit_length() to unify duplicate bits_in_digit() and bit_length().
2020-01-16 15:09:19 +01:00
Ammar Askar e92d39303f Fix compiler warning on Windows (GH-18012)
Python-ast.h contains a macro named Yield that conflicts with the Yield macro
in Windows system headers. While Python-ast.h has an "undef Yield" directive
to prevent this, it means that Python-ast.h must be included before Windows
header files or we run into a re-declaration warning. In commit c96be811fa
an include for pycore_pystate.h was added which indirectly includes Windows
header files. In this commit we re-order the includes to fix this warning.
2020-01-15 10:48:40 -06:00
Victor Stinner 3f12ac18a4
bpo-39164: Fix compiler warning in PyErr_GetExcInfo() (GH-18010)
The function has no return value.
2020-01-15 11:23:25 +01:00
Géry Ogam 1d1b97ae64 bpo-39048: Look up __aenter__ before __aexit__ in async with (GH-17609)
* Reorder the __aenter__ and __aexit__ checks for async with
* Add assertions for async with body being skipped
* Swap __aexit__ and __aenter__ loading in the documentation
2020-01-14 21:58:29 +10:00
Mark Shannon 9af0e47b17
bpo-39156: Break up COMPARE_OP into four logically distinct opcodes. (GH-17754)
Break up COMPARE_OP into four logically distinct opcodes:
* COMPARE_OP for rich comparisons
* IS_OP for 'is' and 'is not' tests
* CONTAINS_OP for 'in' and 'is not' tests
* JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements.
2020-01-14 10:12:45 +00:00
Victor Stinner 2b1df4592e
bpo-38644: Pass tstate to _Py_FinishPendingCalls() (GH-17990)
_Py_FinishPendingCalls() now expects a tstate argument, instead of a
runtime argument.
2020-01-13 18:46:59 +01:00
Julien Danjou 3430c55417 bpo-39164: Add private _PyErr_GetExcInfo() function (GH-17752)
This adds a new function named _PyErr_GetExcInfo() that is a variation of the
original PyErr_GetExcInfo() taking a PyThreadState as its first argument.
That function allows to retrieve the exceptions information of any Python
thread -- not only the current one.
2020-01-13 17:30:14 +01:00
Mark Shannon e7c9f4aae1
Cleanup exit code for interpreter. (GH-17756) 2020-01-13 12:51:26 +00:00
Dong-hee Na abdc634f33 bpo-39200: Correct the error message for min/max builtin function (GH-17814)
Correct the error message when calling the min() or max() with
no arguments.
2020-01-10 17:31:43 +01:00
Pablo Galindo 4c53e63cc9 bpo-39166: Fix trace of last iteration of async for loops (#17800) 2020-01-10 09:24:22 +00:00
Guido van Rossum a796d8ef9d bpo-39235: Fix end location for genexp in call args (GH-17925)
The fix changes copy_location() to require an extra node from which to extract the end location, and fixing all 5 call sites.


https://bugs.python.org/issue39235
2020-01-09 11:18:47 -08:00
Alex Henrie f3e5e95669 bpo-39270: Remove dead assignment from config_init_module_search_paths (GH-17914) 2020-01-09 10:14:11 +01:00
Alex Henrie 2c7ed417a4 closes bpo-39261: Remove dead assignment from pyinit_config. (GH-17907) 2020-01-08 18:46:55 -08:00
Anthony Wee 7b79dc9200 bpo-29778: Fix incorrect NULL check in _PyPathConfig_InitDLLPath() (GH-17818) 2020-01-06 08:57:34 -08:00
Anthony Sottile b121a4a45f Fix constant folding optimization for positional only arguments (GH-17837) 2020-01-05 17:03:56 +00:00
Anthony Sottile ec007cb43f Fix SystemError when nested function has annotation on positional-only argument (GH-17826) 2020-01-05 01:57:21 +00:00
Benjamin Peterson 946b29ea0b
Bring Python into the next decade. (GH-17801) 2020-01-02 18:56:34 -08:00
Pablo Galindo 04ec7a1f7a
bpo-39114: Fix tracing of except handlers with name binding (GH-17769)
When producing the bytecode of exception handlers with name binding (like `except Exception as e`) we need to produce a try-finally block to make sure that the name is deleted after the handler is executed to prevent cycles in the stack frame objects. The bytecode associated with this try-finally block does not have source lines associated and it was causing problems when the tracing functionality was running over it.
2020-01-02 11:38:44 +00:00
Jendrik Seipp 5b9077134c bpo-13601: always use line-buffering for sys.stderr (GH-17646) 2020-01-01 23:21:43 +01:00
Ned Batchelder 37143a8e3b bpo-39176: Improve error message for 'named assignment' (GH-17777) 2019-12-31 20:40:58 -06:00
Batuhan Taşkaya d0c92e81aa closes bpo-37446: resolve undefined behavior in Python/hamt.c (GH-17727) 2019-12-30 18:31:52 -08:00
Mark Shannon 88dce26da6
Fix handling of line numbers around finally-blocks. (#17737) 2019-12-30 09:53:36 +00:00
Sebastian Berg 75bb07e92b bpo-39028: Performance enhancement in keyword extraction (GH-17576)
All keywords should first be checked for pointer identity. Only
after that failed for all keywords (unlikely) should unicode
equality be used.
The original code would call unicode equality on any non-matching
keyword argument. Meaning calling it often e.g. when a function
has many kwargs but only the last one is provided.
2019-12-18 15:51:22 +09:00
Lysandros Nikolaou 50d4f12958 bpo-39080: Starred Expression's column offset fix when inside a CALL (GH-17645)
Co-Authored-By: Pablo Galindo <Pablogsal@gmail.com>
2019-12-18 00:20:55 +00:00
Victor Stinner 630c8df5cf
bpo-38858: Small integer per interpreter (GH-17315)
Each Python subinterpreter now has its own "small integer
singletons": numbers in [-5; 257] range.

It is no longer possible to change the number of small integers at
build time by overriding NSMALLNEGINTS and NSMALLPOSINTS macros:
macros should now be modified manually in pycore_pystate.h header
file.

For now, continue to share _PyLong_Zero and _PyLong_One singletons
between all subinterpreters.
2019-12-17 13:02:18 +01:00
Xtreak 79f02fee1a bpo-39033: Fix NameError in zipimport during hash validation (GH-17588)
Patch by Karthikeyan Singaravelan.
2019-12-16 09:34:12 +10:00
Guido van Rossum b08d3f71be The comment in ast_for_namedexpr shouldn't include if_stmt (GH-17586)
Automerge-Triggered-By: @gvanrossum
2019-12-15 10:00:33 -08:00
Lysandros Nikolaou 5936a4ce91 Fix elif start column offset when there is an else following (GH-17596) 2019-12-14 10:24:57 +00:00
Inada Naoki 95826c773a
Add PYTHONUTF8 to commandline usage. (GH-17587)
Co-Authored-By: Victor Stinner <vstinner@python.org>
2019-12-14 14:27:32 +09:00
Lysandros Nikolaou 025a602af7 bpo-39031: Include elif keyword when producing lineno/col-offset info for if_stmt (GH-17582)
When parsing an "elif" node, lineno and col_offset of the node now point to the "elif" keyword and not to its condition, making it consistent with the "if" node.


https://bugs.python.org/issue39031



Automerge-Triggered-By: @pablogsal
2019-12-12 13:40:21 -08:00
Steve Dower b8cbe74c34
bpo-39008: Require Py_ssize_t for PySys_Audit formats rather than raise a deprecation warning (GH-17540) 2019-12-09 11:05:39 -08:00
Victor Stinner a1a99b4bb7
bpo-20443: No longer make sys.argv[0] absolute for script (GH-17534)
In Python 3.9.0a1, sys.argv[0] was made an asolute path if a filename
was specified on the command line. Revert this change, since most
users expect sys.argv to be unmodified.
2019-12-09 17:34:02 +01:00
Victor Stinner 080ee5a884
bpo-38858: Fix ref leak in pycore_interp_init() (GH-17512)
bpo-38858, bpo-38997: _PySys_Create() returns a strong reference to
the sys module: Py_DECREF() is needed when we are done with the
module.
2019-12-08 21:55:58 +01:00
AMIR 28c91631c2 bpo-38979: fix ContextVar "__class_getitem__" method (GH-17497)
now contextvars.ContextVar "__class_getitem__" method returns ContextVar class, not None. 


https://bugs.python.org/issue38979



Automerge-Triggered-By: @asvetlov
2019-12-08 03:35:59 -08:00
xdegaye 00ada2c1d5 bpo-38852: Set thread stack size to 8 Mb for debug builds on android platforms (GH-17337) 2019-12-08 08:40:14 +01:00
Victor Stinner d863ade0c7
bpo-38858: Add pycore_interp_init() code to factorize code (GH-17483)
Add a new pycore_interp_init() function called by new_interpreter()
and pyinit_config().
2019-12-06 03:37:07 +01:00
Victor Stinner 81fe5bd3d7
bpo-38858: new_interpreter() reuses _PySys_Create() (GH-17481)
new_interpreter() now calls _PySys_Create() to create a new sys
module isolated from the main interpreter. It now calls
_PySys_InitCore() and _PyImport_FixupBuiltin().

init_interp_main() now calls _PySys_InitMain().
2019-12-06 02:43:30 +01:00
Pablo Galindo 4da4400084
Remove unused variable in Python/pylifecycle.c (GH-17475) 2019-12-05 16:18:27 +00:00
Pablo Galindo ac0e1c2694 bpo-38962: Fix reference leak in the per-subinterpreter gc (GH-17457)
https://bugs.python.org/issue38962



Automerge-Triggered-By: @pablogsal
2019-12-04 03:51:03 -08:00
Pablo Galindo b96c6b0723 bpo-38962: Fix reference leak in new_interpreter() (GH-17453)
https://bugs.python.org/issue38962



Automerge-Triggered-By: @pablogsal
2019-12-04 03:19:59 -08:00
Steve Dower bea33f5e1d
bpo-38920: Add audit hooks for when sys.excepthook and sys.unraisable hooks are invoked (GH-17392)
Also fixes some potential segfaults in unraisable hook handling.
2019-11-28 08:46:11 -08:00
Brandt Bucher 6dd9b64770 bpo-38328: Speed up the creation time of constant list and set display. (GH-17114) 2019-11-26 15:16:53 +09:00
Victor Stinner 2ec1a1b307
bpo-38858: new_interpreter() uses pycore_init_import_warnings() (GH-17353) 2019-11-22 21:54:33 +01:00
Victor Stinner 2582d46fbc
bpo-38858: new_interpreter() reuses pycore_init_builtins() (GH-17351)
new_interpreter() now calls _PyBuiltin_Init() to create the builtins
module and calls _PyImport_FixupBuiltin(), rather than using
_PyImport_FindBuiltin(tstate, "builtins").

pycore_init_builtins() is now responsible to initialize
intepr->builtins_copy: inline _PyImport_Init() and remove this
function.
2019-11-22 19:24:49 +01:00
Victor Stinner 82c83bd907
bpo-38858: _PyImport_FixupExtensionObject() handles subinterpreters (GH-17350)
If _PyImport_FixupExtensionObject() is called from a subinterpreter,
leave extensions unchanged and don't copy the module dictionary
into def->m_base.m_copy.
2019-11-22 18:52:27 +01:00
Victor Stinner b00513636c
bpo-38858: Add init_interp_main() subfunction (GH-17347)
Fix new_interpreter() error handling: undo it all if status is an
exception.
2019-11-22 17:52:42 +01:00
Victor Stinner e0c9ab8e26
bpo-38858: Add init_set_builtins_open() subfunction (GH-17346) 2019-11-22 16:19:14 +01:00
Victor Stinner 3d4833488a
bpo-38858: Call _PyUnicode_Fini() in Py_EndInterpreter() (GH-17330)
Py_EndInterpreter() now clears the filesystem codec.
2019-11-22 12:27:50 +01:00
Victor Stinner 310e2d2517
bpo-36854: Fix refleak in subinterpreter (GH-17331)
finalize_interp_clear() now explicitly clears the codec registry and
then trigger a GC collection to clear all references.
2019-11-22 10:58:00 +01:00
Mark Shannon fee552669f
Produce cleaner bytecode for 'with' and 'async with' by generating separate code for normal and exceptional paths. (#6641)
Remove BEGIN_FINALLY, END_FINALLY, CALL_FINALLY and POP_FINALLY bytecodes. Implement finally blocks by code duplication.
Reimplement frame.lineno setter using line numbers rather than bytecode offsets.
2019-11-21 09:11:43 +00:00
Victor Stinner b93f31fcd9
bpo-38858: Fix Py_Finalize() when called from a subinterpreter (GH-17297)
Use _Py_IsMainInterpreter() in Py_Initialize() and Py_Finalize() to
detect if the current interpreter is the main interpreter or not.
2019-11-20 18:39:12 +01:00
Victor Stinner fff7bbfdb6
bpo-38858: Add _Py_IsMainInterpreter(tstate) (GH-17293) 2019-11-20 17:34:39 +01:00
Victor Stinner 4dedd0f0dd
bpo-37340: Remove PyMethod_ClearFreeList() and PyCFunction_ClearFreeList() (GH-17284)
Remove PyMethod_ClearFreeList() and PyCFunction_ClearFreeList()
functions: the free lists of bound method objects have been removed.

Remove also _PyMethod_Fini() and _PyCFunction_Fini() functions.
2019-11-20 12:59:12 +01:00
Victor Stinner 7247407c35
bpo-36854: Move _PyRuntimeState.gc to PyInterpreterState (GH-17287)
* Rename _PyGC_InitializeRuntime() to _PyGC_InitState()
* finalize_interp_clear() now also calls _PyGC_Fini() in
  subinterpreters (clear the GC state).
2019-11-20 12:25:50 +01:00
Victor Stinner e7e699e4df
bpo-38858: Fix reference leak in pycore_init_types() (GH-17286)
Only call _PyGC_Init(), _PyExc_Init() and _PyErr_Init() in
new_interpreter().
2019-11-20 12:08:13 +01:00
Victor Stinner 67e0de6f0b
bpo-36854: gcmodule.c gets its state from tstate (GH-17285)
* Add GCState type for readability
* gcmodule.c now gets its gcstate from tstate
* _PyGC_DumpShutdownStats() now expects tstate rather than runtime
* Rename "state" to "gcstate" for readability: to avoid confusion
  between "state" and "tstate" for example.
* collect() now only expects tstate: it gets gcstate from tstate.
* Pass tstate to _PyErr_xxx() functions
2019-11-20 11:48:18 +01:00
Victor Stinner 9da7430675
bpo-36854: Clear the current thread later (GH-17279)
Clear the current thread later in the Python finalization.

* The PyInterpreterState_Delete() function is now responsible
  to call PyThreadState_Swap(NULL).
* The tstate_delete_common() function is now responsible to clear the
  "autoTSSKey" thread local storage and it only clears it once the
  thread state is fully cleared. It allows to still get the current
  thread from TSS in tstate_delete_common().
2019-11-20 11:17:17 +01:00
Victor Stinner 7eee5beaf8
bpo-38858: Factorize Py_EndInterpreter() code (GH-17273)
* Factorize code in common between Py_FinalizeEx() and
  Py_EndInterpreter().
* Py_EndInterpreter() now also calls _PyWarnings_Fini().
* Call _PyExc_Fini() and _PyGC_Fini() later in the finalization.
2019-11-20 10:38:34 +01:00
Victor Stinner be143ec996
bpo-38835: Don't use PyFPE_START_PROTECT and PyFPE_END_PROTECT (GH-17231)
The PyFPE_START_PROTECT() and PyFPE_END_PROTECT() macros are empty:
they have been doing nothing for the last year  (since commit
735ae8d139), so stop using them.
2019-11-20 02:51:30 +01:00
Victor Stinner 01b1cc12e7
bpo-36710: Add PyInterpreterState.runtime field (GH-17270)
Add PyInterpreterState.runtime field: reference to the _PyRuntime
global variable. This field exists to not have to pass runtime in
addition to tstate to a function.  Get runtime from tstate:
tstate->interp->runtime.

Remove "_PyRuntimeState *runtime" parameter from functions already
taking a "PyThreadState *tstate" parameter.

_PyGC_Init() first parameter becomes "PyThreadState *tstate".
2019-11-20 02:27:56 +01:00
Brandt Bucher 33b671e724 bpo-38823: Fix refleak in marshal init error path (GH-17260) 2019-11-20 01:59:32 +01:00
Victor Stinner 444b39bb64
bpo-38631: Avoid Py_FatalError() in handle_legacy_finalizers() (GH-17266)
* Rename _PyGC_Initialize() to _PyGC_InitializeRuntime()
* Add _PyGC_Init(): initialize _PyRuntime.gc.garbage list
* Call _PyGC_Init() before _PyTypes_Init()
2019-11-20 01:18:11 +01:00
Victor Stinner ef5aa9af7c
bpo-38858: Reorganize pycore_init_types() (GH-17265)
* Call _PyLong_Init() and _PyExc_Init() earlier
* new_interpreter() reuses pycore_init_types()
2019-11-20 00:38:03 +01:00
Victor Stinner b5e170f127
bpo-38644: Add _PyEval_EvalCode() (GH-17183)
_PyFunction_Vectorcall() now pass tstate to function calls.
2019-11-16 01:03:22 +01:00
Victor Stinner 4d231bcc77
bpo-38644: Add _PyObject_Call() (GH-17089)
* Add pycore_call.h internal header file.
* Add _PyObject_Call(): PyObject_Call() with tstate
* Add _PyObject_CallNoArgTstate(): _PyObject_CallNoArg() with tstate
* Add _PyObject_FastCallDictTstate(): _PyObject_FastCallDict()
  with tstate
* _PyObject_Call_Prepend() now takes tstate
* Replace _PyObject_FastCall() calls
  with _PyObject_VectorcallTstate() calls
2019-11-14 13:36:21 +01:00
Victor Stinner b9e681261c
bpo-38644: Add _PyEval_EvalFrame() with tstate (GH-17131)
Add _PyEval_EvalFrame() static inline function to get eval_frame from
tstate->interp.
2019-11-14 12:20:46 +01:00
Victor Stinner 7e43373317
bpo-38644: Add _PyObject_VectorcallTstate() (GH-17052)
* Add _PyObject_VectorcallTstate() function: similar to
  _PyObject_Vectorcall(), but with tstate parameter
* Add tstate parameter to _PyObject_MakeTpCall()
2019-11-08 10:05:17 +01:00