Commit Graph

462 Commits

Author SHA1 Message Date
Steve Dower e731554337
Fixes loop variables to be the same types as their limit (GH-120958) 2024-06-24 17:11:47 +01:00
Petr Viktorin 6f1d448bc1
gh-113993: Allow interned strings to be mortal, and fix related issues (GH-120520)
* Add an InternalDocs file describing how interning should work and how to use it.

* Add internal functions to *explicitly* request what kind of interning is done:
  - `_PyUnicode_InternMortal`
  - `_PyUnicode_InternImmortal`
  - `_PyUnicode_InternStatic`

* Switch uses of `PyUnicode_InternInPlace` to those.

* Disallow using `_Py_SetImmortal` on strings directly.
  You should use `_PyUnicode_InternImmortal` instead:
  - Strings should be interned before immortalization, otherwise you're possibly
    interning a immortalizing copy.
  - `_Py_SetImmortal` doesn't handle the `SSTATE_INTERNED_MORTAL` to
    `SSTATE_INTERNED_IMMORTAL` update, and those flags can't be changed in
    backports, as they are now part of public API and version-specific ABI.

* Add private `_only_immortal` argument for `sys.getunicodeinternedsize`, used in refleak test machinery.

* Make sure the statically allocated string singletons are unique. This means these sets are now disjoint:
  - `_Py_ID`
  - `_Py_STR` (including the empty string)
  - one-character latin-1 singletons

  Now, when you intern a singleton, that exact singleton will be interned.

* Add a `_Py_LATIN1_CHR` macro, use it instead of `_Py_ID`/`_Py_STR` for one-character latin-1 singletons everywhere (including Clinic).

* Intern `_Py_STR` singletons at startup.

* For free-threaded builds, intern `_Py_LATIN1_CHR` singletons at startup.

* Beef up the tests. Cover internal details (marked with `@cpython_only`).

* Add lots of assertions

Co-Authored-By: Eric Snow <ericsnowcurrently@gmail.com>
2024-06-21 17:19:31 +02:00
Erlend E. Aasland af359cee75
gh-118928: sqlite3: correctly bail if sequences of params are used with named placeholders (#119197) 2024-05-20 09:44:42 -04:00
Erlend E. Aasland d8e0e00919
gh-118928: sqlite3: disallow sequences of params with named placeholders (#118929)
Follow-up of gh-101693. The previous DeprecationWarning is replaced with 
raising sqlite3.ProgrammingError.

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
2024-05-14 16:10:55 +00:00
Hugo van Kemenade a019347947
gh-118924: Remove `sqlite3.version` and `sqlite3.version_info` (#118925) 2024-05-10 20:42:34 +00:00
Brett Simmers c2627d6eea
gh-116322: Add Py_mod_gil module slot (#116882)
This PR adds the ability to enable the GIL if it was disabled at
interpreter startup, and modifies the multi-phase module initialization
path to enable the GIL when loading a module, unless that module's spec
includes a slot indicating it can run safely without the GIL.

PEP 703 called the constant for the slot `Py_mod_gil_not_used`; I went
with `Py_MOD_GIL_NOT_USED` for consistency with gh-104148.

A warning will be issued up to once per interpreter for the first
GIL-using module that is loaded. If `-v` is given, a shorter message
will be printed to stderr every time a GIL-using module is loaded
(including the first one that issues a warning).
2024-05-03 11:30:55 -04:00
Erlend E. Aasland b568c2c1ff
gh-118406: Add signature for sqlite3.Connection objects (#118428) 2024-04-30 19:58:22 +00:00
Erlend E. Aasland 550483b7e6
gh-117995: Don't raise DeprecationWarnings for indexed nameless params (#118001)
Filter out '?NNN' placeholders when looking for named params.

Co-authored-by: AN Long <aisk@users.noreply.github.com>
2024-04-22 08:43:20 +02:00
neonene c520bf9bdf
gh-117613: Argument Clinic: ensure that 'defining_class' params are positional-only (#117781) 2024-04-16 09:52:45 +00:00
mpage df73179048
gh-111926: Make weakrefs thread-safe in free-threaded builds (#117168)
Most mutable data is protected by a striped lock that is keyed on the
referenced object's address. The weakref's hash is protected using the
weakref's per-object lock.
 
Note that this only affects free-threaded builds. Apart from some minor
refactoring, the added code is all either gated by `ifdef`s or is a no-op
(e.g. `Py_BEGIN_CRITICAL_SECTION`).
2024-04-08 10:58:38 -04:00
Steve Dower 7861dfd26a
gh-111140: Adds PyLong_AsNativeBytes and PyLong_FromNative[Unsigned]Bytes functions (GH-114886) 2024-02-12 20:13:13 +00:00
Mariusz Felisiak 1a10437a14
gh-91602: Add iterdump() support for filtering database objects (#114501)
Add optional 'filter' parameter to iterdump() that allows a "LIKE"
pattern for filtering database objects to dump.

Co-authored-by: Erlend E. Aasland <erlend@python.org>
2024-02-06 12:34:56 +01:00
Nikita Sobolev 87cd20a567
gh-115026: Argument Clinic: handle PyBuffer_FillInfo errors in generated code (#115027) 2024-02-05 11:45:09 +01:00
Serhiy Storchaka afac3c9b7e
gh-111789: Simplify the sqlite code (GH-111829)
Use new C API functions PyDict_GetItemRef() and
PyMapping_GetOptionalItemString().
2023-11-10 20:49:24 +00:00
Serhiy Storchaka 771bd3c94a
Add private _PyUnicode_AsUTF8NoNUL() function (GH-111957)
Like PyUnicode_AsUTF8(), but check for embedded null characters.
2023-11-10 21:31:36 +02:00
Victor Stinner 11e83488c5
gh-111089: Revert PyUnicode_AsUTF8() changes (#111833)
* Revert "gh-111089: Use PyUnicode_AsUTF8() in Argument Clinic (#111585)"

This reverts commit d9b606b3d0.

* Revert "gh-111089: Use PyUnicode_AsUTF8() in getargs.c (#111620)"

This reverts commit cde1071b2a.

* Revert "gh-111089: PyUnicode_AsUTF8() now raises on embedded NUL (#111091)"

This reverts commit d731579bfb.

* Revert "gh-111089: Add PyUnicode_AsUTF8() to the limited C API (#111121)"

This reverts commit d8f32be5b6.

* Revert "gh-111089: Use PyUnicode_AsUTF8() in sqlite3 (#111122)"

This reverts commit 37e4e20eaa.
2023-11-07 22:36:13 +00:00
Victor Stinner d9b606b3d0
gh-111089: Use PyUnicode_AsUTF8() in Argument Clinic (#111585)
Replace PyUnicode_AsUTF8AndSize() with PyUnicode_AsUTF8() to remove
the explicit check for embedded null characters.

The change avoids to have to include explicitly <string.h> to get the
strlen() function when using a recent version of the limited C API.
2023-11-01 16:34:42 +01:00
Furkan Onder 32c37fe1ba
gh-67565: Remove redundant C-contiguity checks (GH-105521)
Co-authored-by: Stefan Krah <skrah@bytereef.org>
2023-10-23 12:54:46 +03:00
Victor Stinner 37e4e20eaa
gh-111089: Use PyUnicode_AsUTF8() in sqlite3 (#111122)
PyUnicode_AsUTF8() now raises an exception if the string contains
embedded null characters.
2023-10-20 20:04:27 +02:00
Victor Stinner be5e8a0103
gh-110964: Remove private _PyArg functions (#110966)
Move the following private functions and structures to
pycore_modsupport.h internal C API:

* _PyArg_BadArgument()
* _PyArg_CheckPositional()
* _PyArg_NoKeywords()
* _PyArg_NoPositional()
* _PyArg_ParseStack()
* _PyArg_ParseStackAndKeywords()
* _PyArg_Parser structure
* _PyArg_UnpackKeywords()
* _PyArg_UnpackKeywordsWithVararg()
* _PyArg_UnpackStack()
* _Py_ANY_VARARGS()

Changes:

* Python/getargs.h now includes pycore_modsupport.h to export
  functions.
* clinic.py now adds pycore_modsupport.h when one of these functions
  is used.
* Add pycore_modsupport.h includes when a C extension uses one of
  these functions.
* Define Py_BUILD_CORE_MODULE in C extensions which now include
  directly or indirectly (via code generated by Argument Clinic)
  pycore_modsupport.h:

  * _csv
  * _curses_panel
  * _dbm
  * _gdbm
  * _multiprocessing.posixshmem
  * _sqlite.row
  * _statistics
  * grp
  * resource
  * syslog

* _testcapi: bad_get() no longer uses METH_FASTCALL calling
  convention but METH_VARARGS. Replace _PyArg_UnpackStack() with
  PyArg_ParseTuple().
* _testcapi: add PYTESTCAPI_NEED_INTERNAL_API macro which is defined
  by _testcapi sub-modules which need the internal C API
  (pycore_modsupport.h): exceptions.c, float.c, vectorcall.c,
  watchers.c.
* Remove Include/cpython/modsupport.h header file.
  Include/modsupport.h no longer includes the removed header file.
* Fix mypy clinic.py
2023-10-17 14:30:31 +02:00
Victor Stinner ad73674283
gh-107603: Argument Clinic: Only include pycore_gc.h if needed (#108726)
Argument Clinic now only includes pycore_gc.h if PyGC_Head is needed,
and only includes pycore_runtime.h if _Py_ID() is needed.

* Add 'condition' optional argument to Clinic.add_include().
* deprecate_keyword_use() includes pycore_runtime.h when using
  the _PyID() function.
* Fix rendering of includes: comments start at the column 35.
* Mark PC/clinic/_wmimodule.cpp.h and
  "Objects/stringlib/clinic/*.h.h" header files as generated in
  .gitattributes.

Effects:

* 42 header files generated by AC no longer include the internal C
  API, instead of 4 header files before. For example,
  Modules/clinic/_abc.c.h no longer includes the internal C API.
* Fix _testclinic_depr.c.h: it now always includes pycore_runtime.h
  to get _Py_ID().
2023-08-31 23:42:34 +02:00
Victor Stinner 79823c103b
gh-106320: Remove private _PyErr_ChainExceptions() (#108713)
Remove _PyErr_ChainExceptions(), _PyErr_ChainExceptions1() and
_PyErr_SetFromPyStatus() functions from the public C API.

* Move the private _PyErr_ChainExceptions() and
  _PyErr_ChainExceptions1() function to the internal C API
  (pycore_pyerrors.h).
* Move the private _PyErr_SetFromPyStatus() to the internal C API
  (pycore_initconfig.h).
* No longer export the _PyErr_ChainExceptions() function.
* Move run_in_subinterp_with_config() from _testcapi to
  _testinternalcapi.
2023-08-31 13:53:19 +02:00
Erlend E. Aasland 0b0c1d046c
gh-108278: Deprecate passing the first param of sqlite3.Connection callback APIs by keyword (#108632)
Deprecate passing the callback callable by keyword for the following
sqlite3.Connection APIs:

- set_authorizer(authorizer_callback)
- set_progress_handler(progress_handler, ...)
- set_trace_callback(trace_callback)

The affected parameters will become positional-only in Python 3.15.
2023-08-29 22:02:12 +02:00
Erlend E. Aasland 4116592b6f
gh-108278: Deprecate passing the three first params as keyword args for sqlite3 UDF creation APIs (#108281)
Deprecate passing name, number of arguments, and the callable as keyword
arguments, for the following sqlite3.Connection APIs:

- create_function(name, nargs, callable, ...)
- create_aggregate(name, nargs, callable)

The affected parameters will become positional-only in Python 3.15.
2023-08-28 13:32:07 +00:00
Serhiy Storchaka bc5356bb5d
gh-108494: Argument Clinic: fix support of Limited C API (GH-108536) 2023-08-28 16:04:27 +03:00
Victor Stinner b32d4cad15
gh-108444: Replace _PyLong_AsInt() with PyLong_AsInt() (#108459)
Change generated by the command:

sed -i -e 's!_PyLong_AsInt!PyLong_AsInt!g' \
    $(find -name "*.c" -o -name "*.h")
2023-08-25 01:01:30 +02:00
Victor Stinner 4e5a7284ee
gh-108444: Argument Clinic uses PyLong_AsInt() (#108458)
Argument Clinic now uses the new public PyLong_AsInt(), rather than
the old name _PyLong_AsInt().
2023-08-25 00:51:22 +02:00
Victor Stinner c55e73112c
gh-106320: Remove private PyLong C API functions (#108429)
Remove private PyLong C API functions:

* _PyLong_AsByteArray()
* _PyLong_DivmodNear()
* _PyLong_Format()
* _PyLong_Frexp()
* _PyLong_FromByteArray()
* _PyLong_FromBytes()
* _PyLong_GCD()
* _PyLong_Lshift()
* _PyLong_Rshift()

Move these functions to the internal C API. No longer export
_PyLong_FromBytes() function.
2023-08-24 18:53:50 +02:00
Erlend E. Aasland 1a1bfc2891
gh-105539: Emit ResourceWarning if sqlite3 database is not closed explicitly (#108015) 2023-08-22 13:10:29 +02:00
Serhiy Storchaka 2f311437cd
gh-107704: Argument Clinic: add support for deprecating keyword use of parameters (GH-107984)
It is now possible to deprecate passing keyword arguments for
keyword-or-positional parameters with Argument Clinic, using the new
'/ [from X.Y]' syntax.
(To be read as "positional-only from Python version X.Y")

Co-authored-by: Erlend E. Aasland <erlend@python.org>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
2023-08-19 10:13:35 +03:00
Erlend E. Aasland fd19509220
gh-108083: Don't ignore exceptions in sqlite3.Connection.__init__() and .close() (#108084)
- Add explanatory comments
- Add return value to connection_close() for propagating errors
- Always check the return value of connection_exec_stmt()
- Assert pre/post state in remove_callbacks()
- Don't log unraisable exceptions in case of interpreter shutdown
- Make sure we're not initialized if reinit fails
- Try to close the database even if ROLLBACK fails

Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2023-08-18 11:39:12 +00:00
Erlend E. Aasland 13c36dc9ae
gh-93057: Deprecate positional use of optional sqlite3.connect() params (#107948) 2023-08-15 08:09:56 +00:00
Erlend E. Aasland 6fbaba552a
gh-107938: Synchonise the signature of of sqlite3.connect and sqlite3.Connection.__init__ (#107939) 2023-08-14 16:37:44 +02:00
Victor Stinner 1a3faba9f1
gh-106869: Use new PyMemberDef constant names (#106871)
* Remove '#include "structmember.h"'.
* If needed, add <stddef.h> to get offsetof() function.
* Update Parser/asdl_c.py to regenerate Python/Python-ast.c.
* Replace:

  * T_SHORT => Py_T_SHORT
  * T_INT => Py_T_INT
  * T_LONG => Py_T_LONG
  * T_FLOAT => Py_T_FLOAT
  * T_DOUBLE => Py_T_DOUBLE
  * T_STRING => Py_T_STRING
  * T_OBJECT => _Py_T_OBJECT
  * T_CHAR => Py_T_CHAR
  * T_BYTE => Py_T_BYTE
  * T_UBYTE => Py_T_UBYTE
  * T_USHORT => Py_T_USHORT
  * T_UINT => Py_T_UINT
  * T_ULONG => Py_T_ULONG
  * T_STRING_INPLACE => Py_T_STRING_INPLACE
  * T_BOOL => Py_T_BOOL
  * T_OBJECT_EX => Py_T_OBJECT_EX
  * T_LONGLONG => Py_T_LONGLONG
  * T_ULONGLONG => Py_T_ULONGLONG
  * T_PYSSIZET => Py_T_PYSSIZET
  * T_NONE => _Py_T_NONE
  * READONLY => Py_READONLY
  * PY_AUDIT_READ => Py_AUDIT_READ
  * READ_RESTRICTED => Py_AUDIT_READ
  * PY_WRITE_RESTRICTED => _Py_WRITE_RESTRICTED
  * RESTRICTED => (READ_RESTRICTED | _Py_WRITE_RESTRICTED)
2023-07-25 15:28:30 +02:00
Serhiy Storchaka be1b968dc1
gh-106521: Remove _PyObject_LookupAttr() function (GH-106642) 2023-07-12 08:57:10 +03:00
Victor Stinner c9ce983ae1
gh-106320: Remove private pylifecycle.h functions (#106400)
Remove private pylifecycle.h functions: move them to the internal C
API ( pycore_atexit.h, pycore_pylifecycle.h and pycore_signal.h). No
longer export most of these functions.

Move _testcapi.test_atexit() to _testinternalcapi.
2023-07-04 09:41:43 +00:00
Victor Stinner 2e92edbf6d
gh-106320: Remove private _PyImport C API functions (#106383)
* Remove private _PyImport C API functions: move them to the internal
  C API (pycore_import.h).
* No longer export most of these private functions.
* _testcapi avoids private _PyImport_GetModuleAttrString().
2023-07-03 23:02:07 +00:00
Victor Stinner c5afc97fc2
gh-106320: Remove private _PyErr C API functions (#106356)
Remove private _PyErr C API functions: move them to the internal
C API (pycore_pyerrors.h).
2023-07-03 10:48:50 +00:00
Inada Naoki d5bd32fb48
gh-104922: remove PY_SSIZE_T_CLEAN (#106315) 2023-07-02 15:07:46 +09:00
Victor Stinner 46a3190fcf
gh-105927: Avoid calling PyWeakref_GET_OBJECT() (#105997)
* Replace PyWeakref_GET_OBJECT() with _PyWeakref_GET_REF().
* _sqlite/blob.c now holds a strong reference to the blob object
  while calling close_blob().
* _xidregistry_find_type() now holds a strong reference to registered
  while using it.
2023-06-22 22:31:31 +02:00
Victor Stinner c38da1e3e1
gh-105927: Add _PyWeakref_IS_DEAD() function (#105992)
* Add _PyWeakref_IS_DEAD() internal function.
* Modify is_dead_weakref() of Modules/_weakref.c and
  _pysqlite_drop_unused_cursor_references() to replace
  PyWeakref_GET_OBJECT() with _PyWeakref_IS_DEAD().
* Replace "int i" with "Py_ssize_t i" to iterate on cursors
  in _pysqlite_drop_unused_cursor_references().
2023-06-22 21:56:44 +02:00
Erlend E. Aasland 6849acb3fe
gh-105875: Require SQLite 3.15.2 or newer (#105876)
SQLite 3.15.2 was released 2016-11-28.
2023-06-19 00:29:08 +02:00
Erlend E. Aasland a24a780d93
gh-105375: Improve error handling in sqlite3 collation callback (#105412)
Check for error after each call to PyUnicode_FromStringAndSize().
2023-06-07 13:10:28 +02:00
Victor Stinner cbb9ba844f
gh-92536: Argument Clinic no longer emits PyUnicode_READY() (#105208)
Since Python 3.12, PyUnicode_READY() does nothing and always
returns 0.

Argument Clinic now also checks for .cpp files (PC/_wmimodule.cpp).
2023-06-02 01:31:58 +02:00
Eric Snow 26baa747c2
gh-104341: Adjust tstate_must_exit() to Respect Interpreter Finalization (gh-104437)
With the move to a per-interpreter GIL, this check slipped through the cracks.
2023-05-15 13:59:26 -06:00
Erlend E. Aasland a05bad3254
gh-100370: fix OverflowError in sqlite3.Connection.blobopen for 32-bit builds (#103902) 2023-05-07 12:55:31 +02:00
Eric Snow a9c6e0618f
gh-99113: Add Py_MOD_PER_INTERPRETER_GIL_SUPPORTED (gh-104205)
Here we are doing no more than adding the value for Py_mod_multiple_interpreters and using it for stdlib modules.  We will start checking for it in gh-104206 (once PyInterpreterState.ceval.own_gil is added in gh-104204).
2023-05-05 21:11:27 +00:00
Erlend E. Aasland bb8aa7a2b4
gh-103489: Add get/set config methods to sqlite3.Connection (#103506) 2023-04-26 19:57:48 +00:00
Erlend E. Aasland 222c63fc6b
gh-103015: Add entrypoint keyword param to sqlite3.Connection.load_extension (#103073) 2023-04-26 21:22:03 +02:00
Irit Katriel 2db23d10bf
gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives (in Modules/) (#102196) 2023-02-24 21:43:03 +00:00