Commit Graph

65 Commits

Author SHA1 Message Date
Eric Snow fff193bbfe
gh-99113: Add a check for Py_MOD_PER_INTERPRETER_GIL_SUPPORTED (gh-104206)
Py_MOD_PER_INTERPRETER_GIL_SUPPORTED is a new supported value for Py_mod_multiple_interpreters, added in gh-104205.
2023-05-06 21:57:35 +00:00
Eric Snow f3e7eb48f8
gh-99113: Add PyInterpreterConfig.own_gil (gh-104204)
We also add PyInterpreterState.ceval.own_gil to record if the interpreter actually has its own GIL.

Note that for now we don't actually respect own_gil; all interpreters still share the one GIL.  However, PyInterpreterState.ceval.own_gil does reflect PyInterpreterConfig.own_gil.  That lie is a temporary one that we will fix when the GIL really becomes per-interpreter.
2023-05-05 15:59:20 -06:00
Eric Snow 1c420e138f
gh-104108: Add the Py_mod_multiple_interpreters Module Def Slot (gh-104148)
I'll be adding a value to indicate support for per-interpreter GIL in gh-99114.
2023-05-05 14:04:55 -06:00
Rodolfo M. Pereira 8291ae31dd
GH-103805: Lib test f541 linting issue fix (#103812)
This PR makes some minor linting adjustments to the Lib/test module
caught by [ruff](https://github.com/charliermarsh/ruff). The adjustments
are all related to the `F541 f-string without any placeholders` issue.

Issue: https://github.com/python/cpython/issues/103805

<!-- gh-issue-number: gh-103805 -->
* Issue: gh-103805
<!-- /gh-issue-number -->

---------

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
2023-04-24 23:24:49 +00:00
Eric Snow df3173d28e
gh-101659: Isolate "obmalloc" State to Each Interpreter (gh-101660)
This is strictly about moving the "obmalloc" runtime state from
`_PyRuntimeState` to `PyInterpreterState`.  Doing so improves isolation
between interpreters, specifically most of the memory (incl. objects)
allocated for each interpreter's use.  This is important for a
per-interpreter GIL, but such isolation is valuable even without it.

FWIW, a per-interpreter obmalloc is the proverbial
canary-in-the-coalmine when it comes to the isolation of objects between
interpreters.  Any object that leaks (unintentionally) to another
interpreter is highly likely to cause a crash (on debug builds at
least).  That's a useful thing to know, relative to interpreter
isolation.
2023-04-24 17:23:57 -06:00
Eric Snow 6be7aee18c
gh-98040: Move the Single-Phase Init Tests Out of test_imp (gh-102561)
I recently added some tests to test_imp, but @warsaw is removing that file in gh-98573. The tests are worth keeping so here I'm moving them to test_import.
2023-04-19 16:09:35 -06:00
Eric Snow dfc4c95762
gh-101659: Clean Up the General Import Tests for Subinterpreters (gh-103151)
This involves 3 changes: some general cleanup, checks to match the kind of module, and switch from testing against sys to _imp.

This is a precursor to gh-103150, though the changes are meant to stand on their own.
2023-03-31 12:18:33 -06:00
Eric Snow 89ac665891
gh-98627: Add an Optional Check for Extension Module Subinterpreter Compatibility (gh-99040)
Enforcing (optionally) the restriction set by PEP 489 makes sense. Furthermore, this sets the stage for a potential restriction related to a per-interpreter GIL.

This change includes the following:

* add tests for extension module subinterpreter compatibility
* add _PyInterpreterConfig.check_multi_interp_extensions
* add Py_RTFLAGS_MULTI_INTERP_EXTENSIONS
* add _PyImport_CheckSubinterpIncompatibleExtensionAllowed()
* fail iff the module does not implement multi-phase init and the current interpreter is configured to check

https://github.com/python/cpython/issues/98627
2023-02-15 18:16:00 -07:00
Nikita Sobolev 745545b5bb
gh-99482: remove `jython` compatibility parts from stdlib and tests (#99484) 2022-12-23 14:17:24 -06:00
Christian Heimes 7e0d98ecb3
gh-94315: Check for DAC override capability (GH-94316)
``os.geteuid() == 0`` is not a reliable check whether the current user
has the capability to bypass permission checks. Tests now probe for DAC
override.
2022-06-27 20:27:19 +02:00
Christian Heimes 62363bfe59
gh-84461: Skip test_unwritable_directory again on Emscripten (GH-94007)
GH-93992 removed geteuid() and enabled the test again on Emscripten.
2022-06-19 20:18:57 +02:00
Christian Heimes 09243b898a
gh-93461: Invalidate sys.path_importer_cache entries with relative paths (GH-93653) 2022-06-10 23:56:26 +02:00
Christian Heimes 22fed605e0
gh-90473: Make chmod a dummy on WASI, skip chmod tests (GH-93534)
WASI does not have the ``chmod(2)`` syscall yet.
2022-06-06 19:24:11 +02:00
Christian Heimes 069c96f84c
gh-90473: Skip and document more failing tests on WASI (GH-93436)
- Mark more ``umask()`` cases
- ``dup()`` is not supported
- ``/dev/null`` is not available
- document missing features
- mark more modules as not available
2022-06-03 00:44:48 +02:00
Christian Heimes 2b16a08bc7
bpo-40280: Detect missing threading on WASM platforms (GH-32352)
Co-authored-by: Brett Cannon <brett@python.org>
2022-04-07 09:22:47 +02:00
Christian Heimes deeaac49e2
bpo-40280: Skip socket, fork, subprocess tests on Emscripten (GH-31986)
- Add requires_fork and requires_subprocess to more tests
- Skip extension import tests if dlopen is not available
- Don't assume that _testcapi is a shared extension
- Skip a lot of socket tests that don't work on Emscripten
- Skip mmap tests, mmap emulation is incomplete
- venv does not work yet
- Cannot get libc from executable

The "entire" test suite is now passing on Emscripten with EMSDK from git head (91 suites are skipped).
2022-03-22 03:04:36 -07:00
Eric Snow 090591636c
bpo-45020: Freeze os, site, and codecs. (gh-28398)
https://bugs.python.org/issue45020
2021-09-17 16:31:31 -06:00
Eric Snow cbeb819710
bpo-45020: Freeze some of the modules imported during startup. (gh-28335)
Doing this provides significant performance gains for runtime startup (~15% with all the imported modules frozen). We don't yet freeze all the imported modules because there are a few hiccups in the build systems we need to sort out first. (See bpo-45186 and bpo-45188.)

Note that in PR GH-28320 we added a command-line flag (-X frozen_modules=[on|off]) that allows users to opt out of (or into) using frozen modules. The default is still "off" but we will change it to "on" as soon as we can do it in a way that does not cause contributors pain.

https://bugs.python.org/issue45020
2021-09-15 10:19:30 -06:00
Filipe Laíns 0a8ae8a50a
bpo-44717: improve AttributeError on circular imports of submodules (GH-27338) 2021-07-24 23:44:46 +01:00
Pablo Galindo Salgado 3eae8f20d7
Revert "bpo-44717: improve AttributeError on circular imports of submodules (GH-27299)" (GH-27331)
This reverts commit 8072a1181d.
2021-07-24 14:33:03 +01:00
Filipe Laíns 8072a1181d
bpo-44717: improve AttributeError on circular imports of submodules (GH-27299)
Signed-off-by: Filipe Laíns <lains@riseup.net>

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
2021-07-24 11:50:17 +02:00
Dong-hee Na 5a3108044d
bpo-28395: Remove unnecessary semicolons in tests (GH-26868) 2021-06-23 18:01:06 +09:00
Steve Dower 04732ca993
bpo-43105: Importlib now resolves relative paths when creating module spec objects from file locations (GH-25121) 2021-04-07 01:02:07 +01:00
Inada Naoki c8e5eb904e
bpo-43651: PEP 597: Fix EncodingWarning in some tests (GH-25181)
* Fix test_shutil
* Fix test_imp
* Fix test_import
* Fix test_importlib
2021-04-05 13:11:23 +09:00
Hai Shi 79bb2c93f2
bpo-40275: Use new test.support helper submodules in tests (GH-21743) 2020-08-06 13:51:29 +02:00
Hai Shi 96a6a6d42b
bpo-40275: Use new test.support helper submodules in tests (GH-21412) 2020-07-09 15:25:10 +02:00
Serhiy Storchaka 9355868458
bpo-41043: Escape literal part of the path for glob(). (GH-20994) 2020-06-20 11:10:31 +03:00
Hai Shi e80697d687
bpo-40275: Adding threading_helper submodule in test.support (GH-20263) 2020-05-28 00:10:27 +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
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
Ben Lewis 92420b3e67 bpo-37409: fix relative import with no parent (#14956)
Relative imports use resolve_name to get the absolute target name,
which first seeks the current module's absolute package name from the globals:
If __package__ (and __spec__.parent) are missing then
import uses __name__, truncating the last segment if
the module is a submodule rather than a package __init__.py
(which it guesses from whether __path__ is defined).

The __name__ attempt should fail if there is no parent package (top level modules),
if __name__ is '__main__' (-m entry points), or both (scripts).
That is, if both __name__ has no subcomponents and the module does not seem
to be a package __init__ module then import should fail.
2019-09-11 11:09:47 +01:00
Anthony Sottile 65366bc8bd bpo-20490: Improve circular import error message (GH-15308) 2019-09-09 08:17:50 -07:00
Victor Stinner 8b7db5a111
bpo-37473: Don't import importlib ASAP in tests (GH-14661)
bpo-15386, bpo-37473: test_import, regrtest and libregrtest no longer
import importlib as soon as possible, as the first import, "to test
bpo-15386".

It is tested by test_import.test_there_can_be_only_one().

Sort test_import imports.
2019-07-14 19:31:12 +02:00
Victor Stinner 8f4ef3b019
Remove unused imports in tests (GH-14518) 2019-07-01 18:28:25 +02:00
Victor Stinner a9f05d69cc
bpo-37032: Add CodeType.replace() method (GH-13542) 2019-05-24 23:57:23 +02:00
Pablo Galindo 8c77b8cb91
bpo-36540: PEP 570 -- Implementation (GH-12701)
This commit contains the implementation of PEP570: Python positional-only parameters.

* Update Grammar/Grammar with new typedarglist and varargslist

* Regenerate grammar files

* Update and regenerate AST related files

* Update code object

* Update marshal.c

* Update compiler and symtable

* Regenerate importlib files

* Update callable objects

* Implement positional-only args logic in ceval.c

* Regenerate frozen data

* Update standard library to account for positional-only args

* Add test file for positional-only args

* Update other test files to account for positional-only args

* Add News entry

* Update inspect module and related tests
2019-04-29 13:36:57 +01:00
Steve Dower 2438cdf0e9
bpo-36085: Enable better DLL resolution on Windows (GH-12302) 2019-03-29 16:37:16 -07:00
Serhiy Storchaka 3e429dcc24
bpo-33237: Improve AttributeError message for partially initialized module. (GH-6398) 2018-10-30 13:19:51 +02:00
Victor Stinner 937ee9e745
Revert "bpo-33671: Add support.MS_WINDOWS and support.MACOS (GH-7800)" (GH-7919)
This reverts commit 8fbbdf0c31.
2018-06-26 02:11:06 +02:00
Victor Stinner 8fbbdf0c31
bpo-33671: Add support.MS_WINDOWS and support.MACOS (GH-7800)
* Add support.MS_WINDOWS: True if Python is running on Microsoft Windows.
* Add support.MACOS: True if Python is running on Apple macOS.
* Replace support.is_android with support.ANDROID
* Replace support.is_jython with support.JYTHON
* Cleanup code to initialize unix_shell
2018-06-22 19:25:44 +02:00
Barry Warsaw 8709b236fc
bpo-33465: Use an unlikely to be built-in C extension in a test (#6797) 2018-05-15 14:41:13 -04:00
Nick Coghlan d5d9e02dd3
bpo-33053: -m now adds *starting* directory to sys.path (GH-6231)
Historically, -m added the empty string as sys.path
zero, meaning it resolved imports against the current
working directory, the same way -c and the interactive
prompt do.

This changes the sys.path initialisation to add the
*starting* working directory as sys.path[0] instead,
such that changes to the working directory while the
program is running will have no effect on imports
when using the -m switch.
2018-03-25 23:03:10 +10:00
Xiang Zhang d8b291a742
bpo-32932: More revealing error message when non-str objects in __all__ (GH-5848) 2018-03-24 18:39:36 +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
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
Serhiy Storchaka 265fcc5fc2 bpo-31286, bpo-30024: Fixed stack usage in absolute imports with (#3217)
binding a submodule to a name.
2017-08-29 15:47:44 +03:00
Serhiy Storchaka 8a9cd20edc bpo-30876: Relative import from unloaded package now reimports the package (#2639)
instead of failing with SystemError.

Relative import from non-package now fails with ImportError rather than
SystemError.
2017-07-12 06:50:03 +03:00
Serhiy Storchaka b4baacee1a bpo-30814: Fixed a race condition when import a submodule from a package. (#2580) 2017-07-06 08:09:03 +03:00
Segev Finer 7a99625e0d Fix skipping test_UNC_path on AppVeyor due to a different error being raised (#1920)
We get `ERROR_BAD_NETPATH` (53) on AppVeyor which is translated to
ENOENT (2).
2017-06-02 09:28:16 -07:00
Serhiy Storchaka f93234bb8a bpo-30024: Circular imports involving absolute imports with binding (#1264)
a submodule to a name are now supported.
2017-05-09 22:31:05 +03:00