Commit Graph

5746 Commits

Author SHA1 Message Date
Benjamin Peterson 62ed6be8da
remove the dynload_next.c file (closes bpo-32386) (#4957) 2017-12-21 21:43:09 -08:00
Victor Stinner 9bee329130
bpo-32030: Add _Py_FindEnvConfigValue() (#4963)
Add a new _Py_FindEnvConfigValue() function: code shared between
Windows and Unix implementations of _PyPathConfig_Calculate() to read
the pyenv.cfg file.

_Py_FindEnvConfigValue() now uses _Py_DecodeUTF8_surrogateescape()
instead of using a Python Unicode string, the Python API must not be
used early during Python initialization. Same change in Unix
search_for_exec_prefix(): use _Py_DecodeUTF8_surrogateescape().

Cleanup also encode_current_locale(): PyMem_RawFree/PyMem_Free can be
called with NULL.

Fix also "NUL byte" => "NULL byte" typo.
2017-12-21 16:49:13 +01:00
Victor Stinner 9dd762013f
bpo-32030: Add _Py_EncodeLocaleRaw() (#4961)
Replace Py_EncodeLocale() with _Py_EncodeLocaleRaw() in:

* _Py_wfopen()
* _Py_wreadlink()
* _Py_wrealpath()
* _Py_wstat()
* pymain_open_filename()

These functions are called early during Python intialization, only
the RAW memory allocator must be used.
2017-12-21 16:20:32 +01:00
Victor Stinner e47e698da6
bpo-32030: Add _Py_EncodeUTF8_surrogateescape() (#4960)
Py_EncodeLocale() now uses _Py_EncodeUTF8_surrogateescape(), instead
of using temporary unicode and bytes objects. So Py_EncodeLocale()
doesn't use the Python C API anymore.
2017-12-21 15:45:16 +01:00
Victor Stinner 31e99080f6
bpo-32030: Fix usage of memory allocators (#4953)
* _Py_InitializeCore() doesn't call _PyMem_SetupAllocators() anymore
  if the PYTHONMALLOC environment variable is not set.
* pymain_cmdline() now sets the allocator to the default, instead of
  setting the allocator in subfunctions.
* Py_SetStandardStreamEncoding() now calls
  _PyMem_SetDefaultAllocator() to get a known allocator, to be able
  to release the memory with the same allocator.
2017-12-20 23:41:38 +01:00
Victor Stinner 9cfc00262c
bpo-32030: Complete _PyCoreConfig_Read() (#4946)
* Add _PyCoreConfig.install_signal_handlers
* Remove _PyMain.config: _PyMainInterpreterConfig usage is now
  restricted to pymain_init_python_main().
* Rename _PyMain.core_config to _PyMain.config
* _PyMainInterpreterConfig_Read() now creates the xoptions dictionary
   from the core config
* Fix _PyMainInterpreterConfig_Read(): don't replace xoptions and
  argv if they are already set.
2017-12-20 19:36:46 +01:00
Victor Stinner ca719ac42b
bpo-32030: Add _PyCoreConfig.warnoptions (#4936)
Merge _PyCoreConfig_ReadEnv() into _PyCoreConfig_Read(), and
_Py_CommandLineDetails usage is now restricted to pymain_cmdline().

Changes:

* _PyCoreConfig: Add nxoption, xoptions, nwarnoption and warnoptions
* Add _PyCoreConfig.program: argv[0] or ""
* Move filename, command, module and xoptions from
  _Py_CommandLineDetails to _PyMain. xoptions _Py_OptList becomes
  (int, wchar_t**) list.
* Add pymain_cmdline() function
* Rename copy_argv() to copy_wstrlist(). Rename clear_argv() to
  clear_wstrlist(). Remove _Py_OptList structure: use (int,
  wchar_t**) list instead.
* Rename pymain_set_flag_from_env() to pymain_get_env_flag()
* Rename pymain_set_flags_from_env() to pymain_get_env_flags()
* _PyMainInterpreterConfig_Read() now creates the warnoptions from
  _PyCoreConfig.warnoptions
* Inline pymain_add_warning_dev_mode() and
  pymain_add_warning_bytes_flag() into config_init_warnoptions()
* Inline pymain_get_program_name() into _PyCoreConfig_Read()
* _Py_CommandLineDetails: Replace warning_options with nwarnoption
  and warnoptions. Replace env_warning_options with nenv_warnoption
  and env_warnoptions.
* pymain_warnings_envvar() now has a single implementation for
  Windows and Unix: use config_get_env_var_dup() to also get the
  variable as wchar_t* on Unix.
2017-12-20 18:00:19 +01:00
Marcel Plch 776407fe89 bpo-31901: atexit callbacks should be run at subinterpreter shutdown (#4611)
Change atexit behavior and PEP-489 multiphase init support.
2017-12-20 11:17:58 +01:00
Victor Stinner 1976086362
bpo-32030: Cleanup pymain_main() (#4935)
* Reorganize pymain_main() to make the code more flat
* Clear configurations before pymain_update_sys_path()
* Mark Py_FatalError() and _Py_FatalInitError() with _Py_NO_RETURN
* Replace _PyMain.run_code variable with a new RUN_CODE() macro
* Move _PyMain.cf into a local variable in pymain_run_python()
2017-12-20 01:41:59 +01:00
Victor Stinner 5d8624647d
bpo-32030: Fix compiler warnings (#4921)
Fix compiler warnings in Py_FinalizeEx(): only define variables if
they are needed, add #ifdef.

Other cleanup changes:

* _PyWarnings_InitWithConfig() is no more needed: call
  _PyWarnings_Init() instead.
* Inline pymain_init_main_interpreter() in its caller. This
  subfunction is no more justifed.
2017-12-19 11:35:58 +01:00
Serhiy Storchaka bd6ec4d79e
bpo-32365: Fix a reference leak when compile __debug__. (#4916)
It was introduced in bpo-27169.
2017-12-18 14:29:12 +02:00
INADA Naoki 87010e85cb
bpo-29469: peephole: Remove const_stack (GH-4879)
Constant folding was moved to AST optimizer.
But compiler may emit LOAD_CONSTs + BUILD_TUPLE.
For example, default arguments can be constant tuple
if all arguments are constant.

This commit makes peephole's tuple folding simple.
It doesn't support nested tuples because nested
tuples are folded by AST optimizer already.
2017-12-18 15:52:54 +09:00
Benjamin Peterson 0c644fcda0
fix up signedness in PyImport_ExtendInittab (#4831)
As a result of 92a3c6f493, the compiler complains:

Python/import.c:2311:21: warning: comparison of integers of different signs: 'long' and 'unsigned long' [-Wsign-compare]
    if ((i + n + 1) <= PY_SSIZE_T_MAX / sizeof(struct _inittab)) {
         ~~~~~~~~~  ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This overflow is extremely unlikely to happen, but let's avoid undefined
behavior anyway.
2017-12-15 23:42:33 -08:00
Victor Stinner 9454060e84
bpo-29240, bpo-32030: Py_Main() re-reads config if encoding changes (#4899)
bpo-29240, bpo-32030: If the encoding change (C locale coerced or
UTF-8 Mode changed), Py_Main() now reads again the configuration with
the new encoding.

Changes:

* Add _Py_UnixMain() called by main().
* Rename pymain_free_pymain() to pymain_clear_pymain(), it can now be
  called multipled times.
* Rename pymain_parse_cmdline_envvars() to pymain_read_conf().
* Py_Main() now clears orig_argc and orig_argv at exit.
* Remove argv_copy2, Py_Main() doesn't modify argv anymore. There is
  no need anymore to get two copies of the wchar_t** argv.
* _PyCoreConfig: add coerce_c_locale and coerce_c_locale_warn.
* Py_UTF8Mode is now initialized to -1.
* Locale coercion (PEP 538) now respects -I and -E options.
2017-12-16 04:54:22 +01:00
Victor Stinner d2b02310ac
bpo-29240: Don't define decode_locale() on macOS (#4895)
Don't define decode_locale() nor encode_locale() on macOS or Android.
2017-12-15 23:06:17 +01:00
Serhiy Storchaka 2e3f570185
bpo-30416: Protect the optimizer during constant folding. (#4860)
It no longer spends much time doing complex calculations and no
longer consumes much memory for creating large constants that will
be dropped later.

This fixes also bpo-21074.
2017-12-15 14:11:43 +02:00
Serhiy Storchaka a5552f023e
bpo-32240: Add the const qualifier to declarations of PyObject* array arguments. (#4746) 2017-12-15 13:11:11 +02:00
Serhiy Storchaka 3325a6780c
bpo-27169: The __debug__ constant is now optimized out at compile time. (#4880)
This fixes also bpo-22091.
2017-12-15 12:35:48 +02:00
Benjamin Peterson e425bd7517
move pygetopt.h to internal (closes bpo-32264) (#4830) 2017-12-14 23:48:12 -08:00
Victor Stinner 41264f1cd4
bpo-32030: Add _PyMainInterpreterConfig.executable (#4876)
* Add new fields to _PyMainInterpreterConfig:

  * executable
  * prefix
  * base_prefix
  * exec_prefix
  * base_exec_prefix

* _PySys_EndInit() now sets sys attributes from
  _PyMainInterpreterConfig
2017-12-15 02:05:29 +01:00
Victor Stinner da273412c4
bpo-32030: Add _PyCoreConfig_Copy() (#4874)
Each interpreter now has its core_config and main_config copy:

* Add _PyCoreConfig_Copy() and _PyMainInterpreterConfig_Copy()
* Move _PyCoreConfig_Read(), _PyCoreConfig_Clear() and
  _PyMainInterpreterConfig_Clear() from Python/pylifecycle.c to
  Modules/main.c
* Fix _Py_InitializeEx_Private(): call _PyCoreConfig_ReadEnv() before
  _Py_InitializeCore()
2017-12-15 01:46:02 +01:00
Victor Stinner 358e5e17a5
bpo-32329: Fix -R option for hash randomization (#4873)
bpo-32329, bpo-32030:

* The -R option now turns on hash randomization when the
  PYTHONHASHSEED environment variable is set to 0 Previously, the
  option was ignored.
* sys.flags.hash_randomization is now properly set to 0 when hash
  randomization is turned off by PYTHONHASHSEED=0.
* _PyCoreConfig_ReadEnv() now reads the PYTHONHASHSEED environment
  variable. _Py_HashRandomization_Init() now only apply the
  configuration, it doesn't read PYTHONHASHSEED anymore.
2017-12-15 00:51:22 +01:00
Ivan Levkivskyi 2b5fd1e9ca
bpo-32226: Implementation of PEP 560 (core components) (#4732)
This part of the PEP implementation adds support for
__mro_entries__ and __class_getitem__ by updating
__build_class__ and PyObject_GetItem.
2017-12-14 23:32:56 +01:00
Serhiy Storchaka 15a8728415
bpo-29469: Optimize literal lists and sets iterating on the AST level. (#4866) 2017-12-14 20:24:31 +02:00
INADA Naoki eadad1b97f
bpo-29469: Remove unnecessary peephole optimizer (GH-4863)
Conversions like `not a is b -> a is not b` are implemented
in AST optimizer in previous commit (7ea143a).
So this commit removes them from peephole optimizer.
2017-12-14 22:18:26 +09:00
Victor Stinner 374c6e178a
bpo-32030: Add _PyMainInterpreterConfig.warnoptions (#4855)
Add warnoptions and xoptions fields to _PyMainInterpreterConfig.
2017-12-14 12:05:26 +01:00
INADA Naoki 7ea143ae79
bpo-29469: Move constant folding to AST optimizer (GH-2858) 2017-12-14 16:47:20 +09:00
Victor Stinner b5fd9ad05e
bpo-32030: Rewrite _PyMainInterpreterConfig (#4854)
_PyMainInterpreterConfig now contains Python objects, whereas
_PyCoreConfig contains wchar_t* strings.

Core config:

* Rename _PyMainInterpreterConfig_ReadEnv() to _PyCoreConfig_ReadEnv()
* Move 3 strings from _PyMainInterpreterConfig to _PyCoreConfig:
  module_search_path_env, home, program_name.
* Add _PyCoreConfig_Clear()
* _PyPathConfig_Calculate() now takes core config rather than main
  config
* _PyMainInterpreterConfig_Read() now requires also a core config

Main config:

* Add _PyMainInterpreterConfig.module_search_path: sys.path list
* Add _PyMainInterpreterConfig.argv: sys.argv list
* _PyMainInterpreterConfig_Read() now computes module_search_path
2017-12-14 02:20:52 +01:00
Victor Stinner 11a247df88
bpo-32030: Add _PyPathConfig_ComputeArgv0() (#4845)
Changes:

* Split _PySys_SetArgvWithError() into subfunctions for Py_Main():

  * Create the Python list object
  * Set sys.argv to the list
  * Compute argv0
  * Prepend argv0 to sys.path

* Add _PyPathConfig_ComputeArgv0()
* Remove _PySys_SetArgvWithError()
* Py_Main() now splits the code to compute sys.argv/path0 and the
  code to update the sys module: add pymain_compute_argv()
  subfunction.
2017-12-13 21:05:57 +01:00
Victor Stinner d5dda98fa8
pymain_set_sys_argv() now copies argv (#4838)
bpo-29240, bpo-32030:

* Rename pymain_set_argv() to pymain_set_sys_argv()
* pymain_set_sys_argv() now creates of copy of argv and modify the
  copy, rather than modifying pymain->argv
* Call pymain_set_sys_argv() earlier: before pymain_run_python(), but
  after pymain_get_importer().
* Add _PySys_SetArgvWithError() to handle errors
2017-12-13 17:31:16 +01:00
Victor Stinner 91106cd9ff
bpo-29240: PEP 540: Add a new UTF-8 Mode (#855)
* Add -X utf8 command line option, PYTHONUTF8 environment variable
  and a new sys.flags.utf8_mode flag.
* If the LC_CTYPE locale is "C" at startup: enable automatically the
  UTF-8 mode.
* Add _winapi.GetACP(). encodings._alias_mbcs() now calls
  _winapi.GetACP() to get the ANSI code page
* locale.getpreferredencoding() now returns 'UTF-8' in the UTF-8
  mode. As a side effect, open() now uses the UTF-8 encoding by
  default in this mode.
* Py_DecodeLocale() and Py_EncodeLocale() now use the UTF-8 encoding
  in the UTF-8 Mode.
* Update subprocess._args_from_interpreter_flags() to handle -X utf8
* Skip some tests relying on the current locale if the UTF-8 mode is
  enabled.
* Add test_utf8mode.py.
* _Py_DecodeUTF8_surrogateescape() gets a new optional parameter to
  return also the length (number of wide characters).
* pymain_get_global_config() and pymain_set_global_config() now
  always copy flag values, rather than only copying if the new value
  is greater than the old value.
2017-12-13 12:29:09 +01:00
Antoine Pitrou fc5db95e00
Test atexit shutdown mechanism in a subprocess (#4828)
* Test atexit shutdown mechanism in a subprocess
2017-12-13 02:29:07 +01:00
Victor Stinner d233796f7d
import.c: Fix a GCC warning (#4822)
Fix the warning:

Python/import.c: warning: comparison between signed and unsigned integer expressions
     if ((i + n + 1) <= PY_SSIZE_T_MAX / sizeof(struct _inittab)) {
2017-12-12 23:29:28 +01:00
Victor Stinner 747f48e2e9
bpo-32230: Set sys.warnoptions with -X dev (#4820)
Rather than supporting dev mode directly in the warnings module, this
instead adjusts the initialisation code to add an extra 'default'
entry to sys.warnoptions when dev mode is enabled.

This ensures that dev mode behaves *exactly* as if `-Wdefault` had
been passed on the command line, including in the way it interacts
with `sys.warnoptions`, and with other command line flags like `-bb`.

Fix also bpo-20361: have -b & -bb options take precedence over any
other warnings options.

Patch written by Nick Coghlan, with minor modifications of Victor Stinner.
2017-12-12 22:59:48 +01:00
Serhiy Storchaka 4ae06c5337
bpo-32241: Add the const qualifire to declarations of umodifiable strings. (#4748) 2017-12-12 13:55:04 +02:00
Benjamin Peterson 60ed130830
byte swap the raw hash secrets (more bpo-32260) (#4773) 2017-12-09 13:11:39 -08:00
Benjamin Peterson 83620773ee
fix my byte-swapping implementation (#4772) 2017-12-09 12:18:56 -08:00
Benjamin Peterson 4e3e156391
bpo-32260: don't byte swap siphash keys (#4771)
Reference siphash takes the keys as a bytes, so it makes sense to byte swap
when reifying the keys as 64-bit integers. However, Python's siphash takes host
integers in to start with.
2017-12-09 11:24:18 -08:00
Benjamin Peterson 42aa93b8ff
closes bpo-31650: PEP 552 (Deterministic pycs) implementation (#4575)
Python now supports checking bytecode cache up-to-dateness with a hash of the
source contents rather than volatile source metadata. See the PEP for details.

While a fairly straightforward idea, quite a lot of code had to be modified due
to the pervasiveness of pyc implementation details in the codebase. Changes in
this commit include:

- The core changes to importlib to understand how to read, validate, and
  regenerate hash-based pycs.

- Support for generating hash-based pycs in py_compile and compileall.

- Modifications to our siphash implementation to support passing a custom
  key. We then expose it to importlib through _imp.

- Updates to all places in the interpreter, standard library, and tests that
  manually generate or parse pyc files to grok the new format.

- Support in the interpreter command line code for long options like
  --check-hash-based-pycs.

- Tests and documentation for all of the above.
2017-12-09 10:26:52 -08:00
Neil Schemenauer 11cc289490
Fix missing DECREF of mod. (#4749) 2017-12-07 16:24:59 -08:00
Victor Stinner 92a3c6f493
bpo-32030: Add _PyImport_Fini2() (#4737)
PyImport_ExtendInittab() now uses PyMem_RawRealloc() rather than
PyMem_Realloc(). PyImport_ExtendInittab() can be called before
Py_Initialize() whereas only the PyMem_Raw allocator is supposed to
be used before Py_Initialize().

Add _PyImport_Fini2() to release the memory allocated by
PyImport_ExtendInittab() at exit. PyImport_ExtendInittab() now forces
the usage of the default raw allocator, to be able to release memory
in _PyImport_Fini2().

Don't export these functions anymore to be C API, only to
Py_BUILD_CORE:

* _PyExc_Fini()
* _PyImport_Fini()
* _PyGC_DumpShutdownStats()
* _PyGC_Fini()
* _PyType_Fini()
* _Py_HashRandomization_Fini()
2017-12-06 18:12:59 +01:00
Victor Stinner 6bf992a1ac
bpo-32030: Add pymain_get_global_config() (#4735)
* Py_Main() now starts by reading Py_xxx configuration variables to
  only work on its own private structure, and then later writes back
  the configuration into these variables.
* Replace Py_GETENV() with pymain_get_env_var() which ignores empty
  variables.
* Add _PyCoreConfig.dump_refs
* Add _PyCoreConfig.malloc_stats
* _PyObject_DebugMallocStats() is now responsible to check if debug
  hooks are installed. The function returns 1 if stats were written,
  or 0 if the hooks are disabled. Mark _PyMem_PymallocEnabled() as
  static.
2017-12-06 17:26:10 +01:00
Victor Stinner 672b6baa71
bpo-32030: pass interp to _PyImport_Init() (#4736)
Remove also the initstr variable, unused since the commit
e69f0df45b pushed in 2012: "bpo-13959:
Re-implement imp.find_module() in Lib/imp.py"
2017-12-06 17:25:50 +01:00
Victor Stinner 33c377ed9b
bpo-32030: Simplify _PyCoreConfig_INIT macro (#4728)
* Simplify _PyCoreConfig_INIT, _PyMainInterpreterConfig_INIT,
  _PyPathConfig_INIT macros: no need to set fields to 0/NULL, it's
  redundant (the C language sets them to 0/NULL for us).
* Fix typo: pymain_run_statup() => pymain_run_startup()
* Remove a few XXX/TODO
2017-12-05 15:12:41 +01:00
Victor Stinner 31a8393cf6
Revert "bpo-32197: Try to fix a compiler error on OS X introduced in bpo-32030. (#4681)" (#4694)
* Revert "bpo-32197: Try to fix a compiler error on OS X introduced in bpo-32030. (#4681)"

This reverts commit 13badcbc60.

Re-apply commits:

* "bpo-32030: _PyPathConfig_Init() sets home and program_name (#4673)"
  commit af5a895073.
* "bpo-32030: Fix config_get_program_name() on macOS (#4669)"
  commit e23c06e2b0.
* "bpo-32030: Add Python/pathconfig.c (#4668)"
  commit 0ea395ae96.
* "bpo-32030: Don't call _PyPathConfig_Fini() in Py_FinalizeEx() (#4667)"
  commit ebac19dad6.
* "bpo-32030: Fix Py_GetPath(): init program_name (#4665)"
  commit 9ac3d88827.

* Fix compilation error on macOS
2017-12-04 13:39:15 +01:00
Neil Schemenauer eea3cc1ef0
Refactor PyImport_ImportModuleLevelObject(). (#4680)
Add import_find_and_load() helper function.  The addition of
the importtime option has made PyImport_ImportModuleLevelObject() large
and so using a helper seems worthwhile.  It also makes it clearer that
abs_name is the only argument needed by _find_and_load().
2017-12-03 09:26:03 -08:00
Nick Coghlan 078f1814f1
bpo-32176: Set CO_NOFREE in the code object constructor (GH-4675)
Previously, CO_NOFREE was set in the compiler, which meant
it could end up being set incorrectly when code objects
were created directly. Setting it in the constructor based
on freevars and cellvars ensures it is always accurate,
regardless of how the code object is defined.
2017-12-03 11:12:20 +10:00
Serhiy Storchaka 13badcbc60
bpo-32197: Try to fix a compiler error on OS X introduced in bpo-32030. (#4681)
* Revert "bpo-32030: _PyPathConfig_Init() sets home and program_name (#4673)"

This reverts commit af5a895073.

* Revert "bpo-32030: Fix config_get_program_name() on macOS (#4669)"

This reverts commit e23c06e2b0.

* Revert "bpo-32030: Add Python/pathconfig.c (#4668)"

This reverts commit 0ea395ae96.

* Revert "bpo-32030: Don't call _PyPathConfig_Fini() in Py_FinalizeEx() (#4667)"

This reverts commit ebac19dad6.

* Revert "bpo-32030: Fix Py_GetPath(): init program_name (#4665)"

This reverts commit 9ac3d88827.
2017-12-02 21:36:00 +02:00
Victor Stinner af5a895073
bpo-32030: _PyPathConfig_Init() sets home and program_name (#4673)
_PyPathConfig_Init() now also initialize home and program_name:

* Rename existing _PyPathConfig_Init() to _PyPathConfig_Calculate().
  Add a new _PyPathConfig_Init() function in pathconfig.c which
  handles the _Py_path_config variable and call
  _PyPathConfig_Calculate().
* Add home and program_name fields to _PyPathConfig.home
* _PyPathConfig_Init() now initialize home and program_name
  from main_config
* Py_SetProgramName(), Py_SetPythonHome() and Py_GetPythonHome() now
  calls Py_FatalError() on failure, instead of silently ignoring
  failures.
* config_init_home() now gets directly _Py_path_config.home to only
  get the value set by Py_SetPythonHome(), or NULL if
  Py_SetPythonHome() was not called.
* config_get_program_name() now gets directly
  _Py_path_config.program_name to only get the value set by
  Py_SetProgramName(), or NULL if Py_SetProgramName() was not called.
* pymain_init_python() doesn't call Py_SetProgramName() anymore,
  _PyPathConfig_Init() now always sets the program name
* Call _PyMainInterpreterConfig_Read() in
  pymain_parse_cmdline_envvars_impl() to control the memory allocator
* C API documentation: it's no more safe to call Py_GetProgramName()
  before Py_Initialize().
2017-12-02 10:11:32 +01:00
Victor Stinner 0ea395ae96
bpo-32030: Add Python/pathconfig.c (#4668)
* Factorize code from PC/getpathp.c and Modules/getpath.c to remove
  duplicated code
* rename pathconfig_clear() to _PyPathConfig_Clear()
* Inline _PyPathConfig_Fini() in pymain_impl() and then remove it,
  since it's a oneliner
2017-12-01 20:50:58 +01:00
Victor Stinner ebac19dad6
bpo-32030: Don't call _PyPathConfig_Fini() in Py_FinalizeEx() (#4667)
Changes:

* _PyPathConfig_Fini() cannot be called in Py_FinalizeEx().
  Py_Initialize() and Py_Finalize() can be called multiple times, but
  it must not "forget" parameters set by Py_SetProgramName(),
  Py_SetPath() or Py_SetPythonHome(), whereas _PyPathConfig_Fini()
  clear all these parameters.
* config_get_program_name() and calculate_program_full_path() now
  also decode paths using Py_DecodeLocale() to use the
  surrogateescape error handler, rather than decoding using
  mbstowcs() which is strict.
* Change _Py_CheckPython3() prototype: () => (void)
* Truncate a few lines which were too long
2017-12-01 20:09:52 +01:00
Serhiy Storchaka a561862048
Don't hide unexpected errors in PyErr_WarnExplicitObject(). (#4585) 2017-12-01 08:40:23 +02:00
Serhiy Storchaka 73a7e9b10b bpo-10544: Deprecate "yield" in comprehensions and generator expressions. (GH-4579)
The current behaviour of yield expressions inside comprehensions  and
generator expressions is essentially an accident of implementation - it
arises implicitly from the way the compiler handles yield expressions inside
nested functions and generators.

Since the current behaviour wasn't deliberately designed, and is inherently
confusing, we're deprecating it, with no current plans to reintroduce it.
Instead, our advice will be to use a named nested generator definition
for cases where this behaviour is desired.
2017-12-01 14:54:17 +10:00
Victor Stinner b4d1e1f7c1
bpo-20891: Fix PyGILState_Ensure() (#4650)
When PyGILState_Ensure() is called in a non-Python thread before
PyEval_InitThreads(), only call PyEval_InitThreads() after calling
PyThreadState_New() to fix a crash.

Add an unit test in test_embed.
2017-11-30 22:05:00 +01:00
Victor Stinner bc8ac6b00e
bpo-32030: Fix _Py_InitializeEx_Private() (#4649)
_Py_InitializeEx_Private() now calls
_PyMainInterpreterConfig_ReadEnv() to read environment variables
PYTHONHOME and PYTHONPATH, and set the program name.
2017-11-30 18:03:55 +01:00
Victor Stinner 5e3806f8cf
bpo-32101: Add PYTHONDEVMODE environment variable (#4624)
* bpo-32101: Add sys.flags.dev_mode flag
  Rename also the "Developer mode" to the "Development mode".
* bpo-32101: Add PYTHONDEVMODE environment variable
  Mention it in the development chapiter.
2017-11-30 11:40:24 +01:00
Victor Stinner 5d39e04290
bpo-32030: Rework memory allocators (#4625)
* Fix _PyMem_SetupAllocators("debug"): always restore allocators to
  the defaults, rather than only caling _PyMem_SetupDebugHooks().
* Add _PyMem_SetDefaultAllocator() helper to set the "default"
  allocator.
* Add _PyMem_GetAllocatorsName(): get the name of the allocators
* main() now uses debug hooks on memory allocators if Py_DEBUG is
  defined, rather than calling directly malloc()
* Document default memory allocators in C API documentation
* _Py_InitializeCore() now fails with a fatal user error if
  PYTHONMALLOC value is an unknown memory allocator, instead of
  failing with a fatal internal error.
* Add new tests on the PYTHONMALLOC environment variable
* Add support.with_pymalloc()
* Add the _testcapi.WITH_PYMALLOC constant and expose it as
   support.with_pymalloc().
* sysconfig.get_config_var('WITH_PYMALLOC') doesn't work on Windows, so
   replace it with support.with_pymalloc().
* pythoninfo: add _testcapi collector for pymem
2017-11-29 17:20:38 +01:00
Serhiy Storchaka 598ceae876
bpo-32150: Expand tabs to spaces in C files. (#4583) 2017-11-28 17:56:10 +02:00
Victor Stinner c9758784eb
bpo-27535: Fix memory leak with warnings ignore (#4489)
The warnings module doesn't leak memory anymore in the hidden
warnings registry for the "ignore" action of warnings filters.

The warn_explicit() function doesn't add the warning key to the
registry anymore for the "ignore" action.
2017-11-27 16:57:07 +01:00
Victor Stinner 21c7730761
bpo-32089: Use default action for ResourceWarning (#4584)
In development and debug mode, use the "default" action, rather than
the "always" action, for ResourceWarning in the default warnings
filters.
2017-11-27 12:11:55 +01:00
Benjamin Peterson cef88b9c15
mark fatal_error as noreturn (#4563)
clang can't figure out that fatal_error is noreturn itself and emits warnings:

../cpython/Python/pylifecycle.c:2116:1: warning: function declared 'noreturn' should not return [-Winvalid-noreturn]
}
^
../cpython/Python/pylifecycle.c:2125:1: warning: function declared 'noreturn' should not return [-Winvalid-noreturn]
}
^
2017-11-25 13:02:55 -08:00
Victor Stinner 9316ee4da2
bpo-32030: Add _PyPathConfig_Init() (#4551)
* Add _PyPathConfig_Init() and _PyPathConfig_Fini()
* Remove _Py_GetPathWithConfig()
* _PyPathConfig_Init() returns _PyInitError to allow to handle errors
  properly
* Add pathconfig_clear()
* Windows calculate_path_impl(): replace Py_FatalError() with
  _PyInitError
* Py_FinalizeEx() now calls _PyPathConfig_Fini() to release memory
* Fix _Py_InitializeMainInterpreter() regression: don't initialize
  path config if _disable_importlib is false
* PyPathConfig now uses dynamically allocated memory
2017-11-25 03:17:57 +01:00
Victor Stinner f04ebe2a4d
bpo-32030: Add _PyMainInterpreterConfig.program_name (#4548)
* Py_Main() now calls Py_SetProgramName() earlier to be able to get
  the program name in _PyMainInterpreterConfig_ReadEnv().
* Rename prog to program_name
* Rename progpath to program_name
2017-11-25 00:01:23 +01:00
Victor Stinner 46972b7bc3
bpo-32030: Add _PyMainInterpreterConfig_ReadEnv() (#4542)
Py_GetPath() and Py_Main() now call
_PyMainInterpreterConfig_ReadEnv() to share the same code to get
environment variables.

Changes:

* Add _PyMainInterpreterConfig_ReadEnv()
* Add _PyMainInterpreterConfig_Clear()
* Add _PyMem_RawWcsdup()
* _PyMainInterpreterConfig: rename pythonhome to home
* Rename _Py_ReadMainInterpreterConfig() to
  _PyMainInterpreterConfig_Read()
* Use _Py_INIT_USER_ERR(), instead of _Py_INIT_ERR(), for decoding
  errors: the user is able to fix the issue, it's not a bug in
  Python. Same change was made in _Py_INIT_NO_MEMORY().
* Remove _Py_GetPythonHomeWithConfig()
2017-11-24 22:55:40 +01:00
Victor Stinner da9c8c36ae
bpo-32125: Remove Py_UseClassExceptionsFlag flag (#4544)
This flag was deprecated and wasn't used anymore since Python 2.0.
2017-11-24 22:06:38 +01:00
Victor Stinner 9e87e7776f
bpo-32096: Remove obj and mem from _PyRuntime (#4532)
bpo-32096, bpo-30860:  Partially revert the commit
2ebc5ce42a8a9e047e790aefbf9a94811569b2b6:

* Move structures back from Include/internal/mem.h to
  Objects/obmalloc.c
* Remove _PyObject_Initialize() and _PyMem_Initialize()
* Remove Include/internal/pymalloc.h
* Add test_capi.test_pre_initialization_api():
   Make sure that it's possible to call Py_DecodeLocale(), and then call
   Py_SetProgramName() with the decoded string, before Py_Initialize().

PyMem_RawMalloc() and Py_DecodeLocale() can be called again before
_PyRuntimeState_Init().

Co-Authored-By: Eric Snow <ericsnowcurrently@gmail.com>
2017-11-24 12:09:24 +01:00
Victor Stinner b98f1715a3
bpo-27535: Cleanup create_filter() (#4516)
create_filter() now expects the action as a _Py_Identifier which
avoids string comparison, and more important, to avoid handling the
"unknown action" annoying case.
2017-11-23 17:13:44 +01:00
Victor Stinner 0327bde9da
bpo-32030: Rewrite calculate_path() (#4521)
* calculate_path() rewritten in Modules/getpath.c and PC/getpathp.c
* Move global variables into a new PyPathConfig structure.
* calculate_path():

  * Split the huge calculate_path() function into subfunctions.
  * Add PyCalculatePath structure to pass data between subfunctions.
  * Document PyCalculatePath fields.
  * Move cleanup code into a new calculate_free() subfunction
  * calculate_init() now handles Py_DecodeLocale() failures properly
  * calculate_path() is now atomic: only replace PyPathConfig
    (path_config) at once on success.

* _Py_GetPythonHomeWithConfig() now returns an error on failure
* Add _Py_INIT_NO_MEMORY() helper: report a memory allocation failure
* Coding style fixes (PEP 7)
2017-11-23 17:03:20 +01:00
Victor Stinner 1f15111a6e
bpo-32030: Add _PyMainInterpreterConfig.pythonhome (#4513)
* Py_Main() now reads the PYTHONHOME environment variable
* Add _Py_GetPythonHomeWithConfig() private function
* Add _PyWarnings_InitWithConfig()
* init_filters() doesn't get the current core configuration from the
  current interpreter or Python thread anymore. Pass explicitly the
  configuration to _PyWarnings_InitWithConfig().
* _Py_InitializeCore() now fails on _PyWarnings_InitWithConfig()
  failure.
* Pass configuration as constant
2017-11-23 10:43:14 +01:00
Victor Stinner e32e79f7d8
bpo-32030: Move PYTHONPATH to _PyMainInterpreterConfig (#4511)
Move _PyCoreConfig.module_search_path_env to _PyMainInterpreterConfig
structure.
2017-11-23 01:49:45 +01:00
Victor Stinner d434110974
bpo-32030: Add _PyCoreConfig.module_search_path_env (#4504)
Changes:

* Py_Main() initializes _PyCoreConfig.module_search_path_env from
  the PYTHONPATH environment variable.
* PyInterpreterState_New() now initializes core_config and config
  fields
* Compute sys.path a little bit ealier in
  _Py_InitializeMainInterpreter() and new_interpreter()
* Add _Py_GetPathWithConfig() private function.
2017-11-23 00:12:09 +01:00
Victor Stinner 82656276ca
bpo-27535: Optimize warnings.warn() (#4508)
* Optimize warnings.filterwarnings(). Replace re.compile('') with
  None to avoid the cost of calling a regex.match() method, whereas
  it always matchs.
* Optimize get_warnings_attr(): replace PyObject_GetAttrString() with
  _PyObject_GetAttrId().

Cleanup also create_filter():

* Use _Py_IDENTIFIER() to allow to cleanup strings at Python
  finalization
* Replace Py_FatalError() with a regular exceptions
2017-11-22 23:51:42 +01:00
Victor Stinner 25420fe290
bpo-32030: Add more options to _PyCoreConfig (#4485)
Py_Main() now handles two more -X options:

* -X showrefcount: new _PyCoreConfig.show_ref_count field
* -X showalloccount: new _PyCoreConfig.show_alloc_count field
2017-11-20 18:12:22 -08:00
Victor Stinner 09f3a8a124
bpo-32089: Fix warnings filters in dev mode (#4482)
The developer mode (-X dev) now creates all default warnings filters
to order filters in the correct order to always show ResourceWarning
and make BytesWarning depend on the -b option.

Write a functional test to make sure that ResourceWarning is logged
twice at the same location in the developer mode.

Add a new 'dev_mode' field to _PyCoreConfig.
2017-11-20 17:32:40 -08:00
Victor Stinner 895862aa01 bpo-32088: Display Deprecation in debug mode (#4474)
When Python is build is debug mode (Py_DEBUG), DeprecationWarning,
PendingDeprecationWarning and ImportWarning warnings are now
displayed by default.

test_venv: run "-m pip" and "-m ensurepip._uninstall" with -W
ignore::DeprecationWarning since pip code is not part of Python.
2017-11-20 18:47:03 +01:00
Victor Stinner ccb0442a33
bpo-32043: New "developer mode": "-X dev" option (#4413)
Add a new "developer mode": new "-X dev" command line option to
enable debug checks at runtime.

Changes:

* Add unit tests for -X dev
* test_cmd_line: replace test.support with support.
* Fix _PyRuntimeState_Fini(): Use the same memory allocator
   than _PyRuntimeState_Init().
* Fix _PyMem_GetDefaultRawAllocator()
2017-11-16 03:20:31 -08:00
Victor Stinner a7368ac636
bpo-32030: Enhance Py_Main() (#4412)
Parse more env vars in Py_Main():

* Add more options to _PyCoreConfig:

  * faulthandler
  * tracemalloc
  * importtime

* Move code to parse environment variables from _Py_InitializeCore()
  to Py_Main(). This change fixes a regression from Python 3.6:
  PYTHONUNBUFFERED is now read before calling pymain_init_stdio().
* _PyFaulthandler_Init() and _PyTraceMalloc_Init() now take an
  argument to decide if the module has to be enabled at startup.
* tracemalloc_start() is now responsible to check the maximum number
  of frames.

Other changes:

* Cleanup Py_Main():

  * Rename some pymain_xxx() subfunctions
  * Add pymain_run_python() subfunction

* Cleanup Py_NewInterpreter()
* _PyInterpreterState_Enable() now reports failure
* init_hash_secret() now considers pyurandom() failure as an "user
  error": don't fail with abort().
* pymain_optlist_append() and pymain_strdup() now sets err on memory
  allocation failure.
2017-11-15 18:11:45 -08:00
Victor Stinner f7e5b56c37
bpo-32030: Split Py_Main() into subfunctions (#4399)
* Don't use "Python runtime" anymore to parse command line options or
  to get environment variables: pymain_init() is now a strict
  separation.
* Use an error message rather than "crashing" directly with
  Py_FatalError(). Limit the number of calls to Py_FatalError(). It
  prepares the code to handle errors more nicely later.
* Warnings options (-W, PYTHONWARNINGS) and "XOptions" (-X) are now
  only added to the sys module once Python core is properly
  initialized.
* _PyMain is now the well identified owner of some important strings
  like: warnings options, XOptions, and the "program name". The
  program name string is now properly freed at exit.
  pymain_free() is now responsible to free the "command" string.
* Rename most methods in Modules/main.c to use a "pymain_" prefix to
  avoid conflits and ease debug.
* Replace _Py_CommandLineDetails_INIT with memset(0)
* Reorder a lot of code to fix the initialization ordering. For
  example, initializing standard streams now comes before parsing
  PYTHONWARNINGS.
* Py_Main() now handles errors when adding warnings options and
  XOptions.
* Add _PyMem_GetDefaultRawAllocator() private function.
* Cleanup _PyMem_Initialize(): remove useless global constants: move
  them into _PyMem_Initialize().
* Call _PyRuntime_Initialize() as soon as possible:
  _PyRuntime_Initialize() now returns an error message on failure.
* Add _PyInitError structure and following macros:

  * _Py_INIT_OK()
  * _Py_INIT_ERR(msg)
  * _Py_INIT_USER_ERR(msg): "user" error, don't abort() in that case
  * _Py_INIT_FAILED(err)
2017-11-15 15:48:08 -08:00
Serhiy Storchaka aca7f574b0
bpo-30950: Convert round() to Argument Clinic. (#2740) 2017-11-15 17:51:14 +02:00
Serhiy Storchaka 00987f6230
bpo-32011: Revert "Issue #15480: Remove the deprecated and unused TYPE_INT64 code from marshal." (#4381)
Simplify the reverted code.

This reverts commit e9bbe8b87b.
2017-11-15 17:41:05 +02:00
Serhiy Storchaka ddbce13786
bpo-32023: Disallow genexprs without parenthesis in class definitions. (#4400) 2017-11-15 17:39:37 +02:00
Serhiy Storchaka edad8eebee
bpo-31949: Fixed several issues in printing tracebacks (PyTraceBack_Print()). (#4289)
* Setting sys.tracebacklimit to 0 or less now suppresses printing tracebacks.
* Setting sys.tracebacklimit to None now causes using the default limit.
* Setting sys.tracebacklimit to an integer larger than LONG_MAX now means using
  the limit LONG_MAX rather than the default limit.
* Fixed integer overflows in the case of more than 2**31 traceback items on
  Windows.
* Fixed output errors handling.
2017-11-15 17:38:52 +02:00
Serhiy Storchaka 9165f77d5f
bpo-32012: Disallow trailing comma after genexpr without parenthesis. (#4382) 2017-11-15 08:49:40 +02:00
xdegaye e0582a37c8
bpo-30696: Fix the REPL looping endlessly when no memory (GH-4160) 2017-11-12 16:50:48 +01:00
xdegaye 1588be66d7
bpo-28180: Fix the implementation of PEP 538 on Android (GH-4334) 2017-11-12 12:45:59 +01:00
Serhiy Storchaka bba2239c17
bpo-31572: Get rid of _PyObject_HasAttrId() in the ASDL parser. (#3725)
Silence only expected AttributeError.
2017-11-11 16:41:32 +02:00
Serhiy Storchaka d4f8480dfe
bpo-31572: Don't silence unexpected errors in the _warnings module. (#3731)
Get rid of _PyObject_HasAttrId() and PyDict_GetItemString().
Silence only expected AttributeError, KeyError and ImportError when
get an attribute, look up in a dict or import a module.
2017-11-11 15:19:47 +02:00
Serhiy Storchaka e2f92de6a9
Add the const qualifier to "char *" variables that refer to literal strings. (#4370) 2017-11-11 13:06:26 +02:00
Victor Stinner 8c663fd60e
Replace KB unit with KiB (#4293)
kB (*kilo* byte) unit means 1000 bytes, whereas KiB ("kibibyte")
means 1024 bytes. KB was misused: replace kB or KB with KiB when
appropriate.

Same change for MB and GB which become MiB and GiB.

Change the output of Tools/iobench/iobench.py.

Round also the size of the documentation from 5.5 MB to 5 MiB.
2017-11-08 14:44:44 -08:00
Serhiy Storchaka 088929cf62
bpo-31415: Improve error handling and caching of the importtime option. (#4138) 2017-11-07 08:55:38 +02:00
luzpaz a5293b4ff2 Fix miscellaneous typos (#4275) 2017-11-05 15:37:50 +02:00
Serhiy Storchaka cf296537f1
bpo-28994: PyErr_NormalizeException() no longer use C stack for recursion. (#2035)
MemoryError raised when normalizing a RecursionError raised during exception normalization now not always causes a fatal error.
2017-11-05 11:27:48 +02:00
Barry Warsaw 700d2e4755
bpo-31415: Support PYTHONPROFILEIMPORTTIME envvar equivalent to -X importtime (#4240)
Support PYTHONPROFILEIMPORTTIME envvar equivalent to -X importtime
2017-11-02 16:13:36 -07:00
Victor Stinner c29b585fd4
bpo-31784: Implement PEP 564: add time.time_ns() (#3989)
Add new time functions:

* time.clock_gettime_ns()
* time.clock_settime_ns()
* time.monotonic_ns()
* time.perf_counter_ns()
* time.process_time_ns()
* time.time_ns()

Add new _PyTime functions:

* _PyTime_FromTimespec()
* _PyTime_FromNanosecondsObject()
* _PyTime_FromTimeval()

Other changes:

* Add also os.times() tests to test_os.
* pytime_fromtimeval() and pytime_fromtimeval() now return
  _PyTime_MAX or _PyTime_MIN on overflow, rather than undefined
  behaviour
* _PyTime_FromNanoseconds() parameter type changes from long long to
  _PyTime_t
2017-11-02 07:28:27 -07:00
Ivan Levkivskyi 8c83c23fa3 bpo-28936: Detect lexically first syntax error first (#4097)
Lexically first global and nonlocal syntax errors at given scope should be detected first.
2017-10-27 00:28:35 +03:00
Serhiy Storchaka bdf4298ae2 Fix trailing whitespaces in C files. (#4130) 2017-10-26 16:59:40 +03:00
xdegaye 56d1f5ca32 bpo-30697: Fix PyErr_NormalizeException() when no memory (GH-2327) 2017-10-26 15:09:06 +02:00
Serhiy Storchaka 41c56940c6 bpo-21720: Restore the Python 2.7 logic in handling a fromlist. (#4118)
BytesWarning no longer emitted when the fromlist argument of
__import__() or the __all__ attribute of the module contain bytes
instances.
2017-10-26 10:41:59 +03:00
pdox 1896793520 bpo-31857: Make the behavior of USE_STACKCHECK deterministic (#4098) 2017-10-25 23:03:01 -07:00
Benjamin Peterson 95f1a7bb09 remove support for splitting the ceval switch into multiple switches (#4099)
This kludge is from 1992. Any C99 compiler is going to be able to handle the
ceval dispatch switch.

Anyway, we have much bigger switches than the ceval dispatch one around. (See,
e.g., Objects/unicodetype_db.h.)
2017-10-24 22:35:15 -07:00
Nick Coghlan d7ac06126d bpo-31845: Fix reading flags from environment (GH-4105)
The startup refactoring means command line settings
are now applied after settings are read from the
environment.

This updates the way command line settings are applied
to account for that, ensures more settings are first read
from the environment in _PyInitializeCore, and adds a
simple test case covering the flags that are easy to check.
2017-10-25 12:11:26 +10:00
Victor Stinner 850a18e03e bpo-30768: Recompute timeout on interrupted lock (GH-4103)
Fix the pthread+semaphore implementation of
PyThread_acquire_lock_timed() when called with timeout > 0 and
intr_flag=0: recompute the timeout if sem_timedwait() is interrupted
by a signal (EINTR).

See also the PEP 475.

The pthread implementation of PyThread_acquire_lock() now fails with
a fatal error if the timeout is larger than PY_TIMEOUT_MAX, as done
in the Windows implementation.

The check prevents any risk of overflow in PyThread_acquire_lock().

Add also PY_DWORD_MAX constant.
2017-10-24 16:53:32 -07:00
xdegaye 66caacf2f0 bpo-30817: Fix PyErr_PrintEx() when no memory (#2526) 2017-10-23 18:08:41 +02:00
Mark Shannon ae3087c638 Move exc state to generator. Fixes bpo-25612 (#1773)
Move exception state information from frame objects to coroutine (generator/thread) object where it belongs.
2017-10-22 23:41:51 +02:00
Serhiy Storchaka 56cb465cc9 bpo-31825: Fixed OverflowError in the 'unicode-escape' codec (#4058)
and in codecs.escape_decode() when decode an escaped non-ascii byte.
2017-10-20 17:08:15 +03:00
George King 20faa68bbb Move opcode tracing to occur after the possible update to f_lineno. (GH-3798) 2017-10-19 10:44:22 +10:00
Zane Bitter de86073a76 bpo-28603: Fix formatting tracebacks for unhashable exceptions (#4014) 2017-10-18 00:29:39 +03:00
Pablo Galindo 2c15b29aea bpo-31786: Make functions in the select module blocking when timeout is a small negative value. (#4003) 2017-10-17 17:14:41 +03:00
Victor Stinner bdaeb7d237 bpo-31773: _PyTime_GetPerfCounter() uses _PyTime_t (GH-3983)
* Rewrite win_perf_counter() to only use integers internally.
* Add _PyTime_MulDiv() which compute "ticks * mul / div"
  in two parts (int part and remaining) to prevent integer overflow.
* Clock frequency is checked at initialization for integer overflow.
* Enhance also pymonotonic() to reduce the precision loss on macOS
  (mach_absolute_time() clock).
2017-10-16 08:44:31 -07:00
Dargor 28773ca7a7 bpo-31780: Fix incorrect error message for ',x', ',b', ',o' specs (#4002)
Patch by Pablo.
2017-10-14 23:41:13 -04:00
Victor Stinner cba9a0c6de bpo-31773: time.perf_counter() uses again double (GH-3964)
time.clock() and time.perf_counter() now use again C double
internally.

Remove also _PyTime_GetWinPerfCounterWithInfo(): use
_PyTime_GetPerfCounterDoubleWithInfo() instead on Windows.
2017-10-12 08:51:56 -07:00
Victor Stinner 277c84067f Cleanup pytime.c (#3955)
* Move _PyTime_overflow() at the top
* Move assertion on numerator into _PyTime_ObjectToDenominator()
* PEP 7: add { ... } to if blocks
2017-10-11 08:11:38 -07:00
Victor Stinner a997c7b434 bpo-31415: Add _PyTime_GetPerfCounter() and use it for -X importtime (#3936)
* Add _PyTime_GetPerfCounter()
* Use _PyTime_GetPerfCounter() for -X importtime
2017-10-10 02:51:50 -07:00
Serhiy Storchaka f07e2b64df bpo-31642: Restore blocking "from" import by setting None in sys.modules. (#3834) 2017-10-08 10:44:10 +03:00
Yury Selivanov 02e82a0596 bpo-31709: Update importlib magic (#3906) 2017-10-06 10:18:10 -04:00
Masayuki Yamamoto 731e189014 bpo-25658: Implement PEP 539 for Thread Specific Storage (TSS) API (GH-1362)
See PEP 539 for details.

Highlights of changes:

- Add Thread Specific Storage (TSS) API
- Document the Thread Local Storage (TLS) API as deprecated
- Update code that used TLS API to use TSS API
2017-10-06 20:41:34 +10:00
Yury Selivanov b8ab9d3fc8 bpo-31708: Allow async generator expressions in synchronous functions (#3905) 2017-10-06 02:58:28 -04:00
Yury Selivanov faa135acbf bpo-31709: Drop support for asynchronous __aiter__. (#3903) 2017-10-06 02:08:57 -04:00
Benjamin Peterson 7faf7e5075 closes bpo-31696: don't mention GCC in sys.version when building with clang (#3891) 2017-10-05 21:15:14 -07:00
Jelle Zijlstra ac317700ce bpo-30406: Make async and await proper keywords (#1669)
Per PEP 492, 'async' and 'await' should become proper keywords in 3.7.
2017-10-05 23:24:46 -04:00
Barry Warsaw 36c1d1f1e5 PEP 553 built-in breakpoint() function (bpo-31353) (#3355)
Implement PEP 553, built-in breakpoint() with support from sys.breakpointhook(), along with documentation and tests.  Closes bpo-31353
2017-10-05 12:11:18 -04:00
Benjamin Peterson a8ed11742b remove tabs from getcompiler.c (#3892) 2017-10-05 00:09:01 -07:00
Serhiy Storchaka 77732be801 bpo-30404: The -u option now makes the stdout and stderr streams totally unbuffered. (#1667) 2017-10-04 20:25:40 +03:00
Victor Stinner 8d5a3aad2f bpo-31683: Py_FatalError() now supports long error messages (#3878)
On Windows, Py_FatalError() now limits the size to 256 bytes of the
buffer used to call OutputDebugStringW(). Previously, the size
depended on the length of the error message.
2017-10-04 09:50:12 -07:00
INADA Naoki 1a87de7fcf bpo-31415: Add `-X importtime` option (GH-3490)
It shows show import time of each module.
It's useful for optimizing startup time.

Typical usage: python -X importtime -c 'import requests'
2017-10-03 19:46:34 +09:00
Oren Milman 7dc46d8cf5 bpo-31592: Fix an assertion failure in Python parser in case of a bad unicodedata.normalize(). (#3767) 2017-09-30 20:16:24 +03:00
Christian Heimes 3d2b407da0 bpo-31574: importlib dtrace (#3749)
Importlib was instrumented with two dtrace probes to profile import timing.

Signed-off-by: Christian Heimes <christian@python.org>
2017-09-29 15:53:19 -07:00
Oren Milman 8b4ff53c44 bpo-31285: Remove splitlines identifier from Python/_warnings.c (#3803)
(forgot to remove it in #3219)
2017-09-29 21:16:02 +03:00
Benjamin Peterson 288d1daada remove support for BSD/OS (closes bpo-31624) (#3812) 2017-09-28 22:44:27 -07:00
Oren Milman 5837d0418f bpo-31588: Validate return value of __prepare__() methods (GH-3764)
Class execution requires that __prepare__() methods return
a proper execution namespace. Check for that immediately
after calling __prepare__(), rather than passing it through
to the code execution machinery and potentially triggering
SystemError (in debug builds) or a cryptic TypeError
(in release builds).

Patch by Oren Milman.
2017-09-28 00:04:37 +10:00
Oren Milman 5d3e80021a bpo-31566: Fix an assertion failure in _warnings.warn() in case of a bad __name__ global. (#3717) 2017-09-24 21:28:42 +03:00
Oren Milman 91fb0afe18 bpo-31285: Fix an assertion failure and a SystemError in warnings.warn_explicit. (#3219) 2017-09-24 21:27:12 +03:00
Oren Milman 9974e1bcf3 bpo-31315: Fix an assertion failure in imp.create_dynamic(), when spec.name is not a string. (#3257) 2017-09-19 14:39:47 +03:00
Oren Milman 6db7033192 bpo-31492: Fix assertion failures in case of a module with a bad __name__ attribute. (#3620) 2017-09-19 14:23:01 +03:00
Antoine Pitrou 88c60c9668 Trivial cleanups following bpo-31370 (#3649)
* Trivial cleanups following bpo-31370

* Also cleanup the "importlib._bootstrap_external" module
2017-09-18 23:50:44 +02:00
Eric Snow 3f9eee6eb4 bpo-28411: Support other mappings in PyInterpreterState.modules. (#3593)
The concrete PyDict_* API is used to interact with PyInterpreterState.modules in a number of places. This isn't compatible with all dict subclasses, nor with other Mapping implementations. This patch switches the concrete API usage to the corresponding abstract API calls.

We also add a PyImport_GetModule() function (and some other helpers) to reduce a bunch of code duplication.
2017-09-15 16:35:20 -06:00
Barry Warsaw b2e5794870 bpo-31338 (#3374)
* Add Py_UNREACHABLE() as an alias to abort().
* Use Py_UNREACHABLE() instead of assert(0)
* Convert more unreachable code to use Py_UNREACHABLE()
* Document Py_UNREACHABLE() and a few other macros.
2017-09-14 18:13:16 -07:00
Eric Snow d393c1b227 bpo-28411: Isolate PyInterpreterState.modules (#3575)
A bunch of code currently uses PyInterpreterState.modules directly instead of PyImport_GetModuleDict(). This complicates efforts to make changes relative to sys.modules. This patch switches to using PyImport_GetModuleDict() uniformly. Also, a number of related uses of sys.modules are updated for uniformity for the same reason.

Note that this code was already reviewed and merged as part of #1638. I reverted that and am now splitting it up into more focused parts.
2017-09-14 12:18:12 -06:00
Eric Snow dae0276bb6 bpo-30860: Fix a refleak. (#3567)
Resolves bpo-31420.

(This was accidentally reverted when in #3565.)
2017-09-14 00:35:58 -07:00
Eric Snow 93c92f7d1d bpo-31404: Revert "remove modules from Py_InterpreterState (#1638)" (#3565)
PR #1638, for bpo-28411, causes problems in some (very) edge cases. Until that gets sorted out, we're reverting the merge. PR #3506, a fix on top of #1638, is also getting reverted.
2017-09-13 23:46:04 -07:00
Oren Milman f6e61df015 bpo-31418: Fix an assertion failure in PyErr_WriteUnraisable() in case of an exception with a bad __module__ attribute. (#3539) 2017-09-14 01:30:05 +03:00
Eric Snow 8728018624 bpo-30860: Fix a refleak. (#3506)
* Drop warnoptions from PyInterpreterState.

* Drop xoptions from PyInterpreterState.

* Don't set warnoptions and _xoptions again.

* Decref after adding to sys.__dict__.

* Drop an unused macro.

* Check sys.xoptions *before* we delete it.
2017-09-11 17:59:22 -07:00
Oren Milman 9d984fd2b0 bpo-31416: Fix assertion failures in case of a bad warnings.filters or warnings.defaultaction. (#3496)
Patch by Oren Milman.
2017-09-12 00:18:09 +03:00
Benjamin Peterson 2bb69a5b4e bpo-31373: remove overly strict float range checks (#3486)
This undoes a853a8ba78 except for the pytime.c
parts. We want to continue to allow IEEE 754 doubles larger than FLT_MAX to be
rounded into finite floats. Tests were added to very this behavior.
2017-09-10 23:50:46 -07:00
Oren Milman 252033d50e bpo-31411: Prevent raising a SystemError in case warnings.onceregistry is not a dictionary. (#3485) 2017-09-11 09:28:39 +03:00
Han Lee 829dacce4f bpo-26669: Fix nan arg value error in pytime.c (#3085)
* Fix #26669

* Modify NaN check function and error message

* Fix pytime.c when arg is nan

* fix whitespace
2017-09-08 16:05:05 -07:00
Benjamin Peterson db610e909b delete dead locale initialization code for windows (#3461) 2017-09-08 14:30:07 -07:00
Serhiy Storchaka e3b2b4b8d9 bpo-31393: Fix the use of PyUnicode_READY(). (#3451) 2017-09-08 09:58:51 +03:00
Eric Snow 2ebc5ce42a bpo-30860: Consolidate stateful runtime globals. (#3397)
* group the (stateful) runtime globals into various topical structs
* consolidate the topical structs under a single top-level _PyRuntimeState struct
* add a check-c-globals.py script that helps identify runtime globals

Other globals are excluded (see globals.txt and check-c-globals.py).
2017-09-07 23:51:28 -06:00
Nick Coghlan 5a8516701f bpo-31344: Per-frame control of trace events (GH-3417)
f_trace_lines: enable/disable line trace events
f_trace_opcodes: enable/disable opcode trace events

These are intended primarily for testing of the interpreter
itself, as they make it much easier to emulate signals
arriving at unfortunate times.
2017-09-08 10:14:16 +10:00