Commit Graph

570 Commits

Author SHA1 Message Date
Anthony Sottile ab9b31f947 bpo-35843: Implement __getitem__ for _NamespacePath (GH-11690) 2019-03-08 10:58:00 -08:00
Nina Zakharenko 1dc5cb9cb3 bpo-35887: Add make regen-importlib step to importlib._bootstrap docstring (GH-11777) 2019-02-13 15:21:17 -08:00
Nina Zakharenko 69091cb497 bpo-35321: Set the spec origin to frozen in frozen modules (#11732)
* bpo-35321: Set the spec origin to frozen in frozen modules

This fix correctly sets the spec origin to
"frozen" for the _frozen_importlib module. Note that the
origin was already correctly set in _frozen_importlib_external.

* 📜🤖 Added by blurb_it.
2019-02-04 16:56:26 -08:00
Serhiy Storchaka 34fd4c2019
bpo-35133: Fix mistakes when concatenate string literals on different lines. (GH-10284)
Two kind of mistakes:

1. Missed space. After concatenating there is no space between words.

2. Missed comma. Causes unintentional concatenating in a list of strings.
2018-11-05 16:20:25 +02:00
Serhiy Storchaka c93c58b5d5
bpo-33331: Clean modules in the reversed order in PyImport_Cleanup(). (GH-6565)
Modules imported last are now cleared first at interpreter shutdown.

A newly imported module is moved to the end of sys.modules, behind
modules on which it depends.
2018-10-29 19:30:16 +02:00
Quentin Agren 9e14e49f13 bpo-35024: Remove redundant and possibly incorrect verbose message after writing '.pyc' (GH-9998)
Since `SourceFileLoader.set_data()` catches exceptions raised by `_write_atomic()` and logs an informative message consequently, always logging successful outcome in 'SourceLoader.get_code()' seems redundant.  



https://bugs.python.org/issue35024
2018-10-26 11:36:30 -07:00
Quentin d7c3e5f0e8 importlib: Fix typo in SourceLoader.path_stats docstring (GH-10052) 2018-10-25 13:04:28 +02:00
Serhiy Storchaka 9da3961f36
bpo-25711: Move _ZipImportResourceReader from importlib to zipimport. (GH-9406) 2018-09-19 09:28:06 +03:00
Serhiy Storchaka 79d1c2e6c9
bpo-25711: Rewrite zipimport in pure Python. (GH-6809) 2018-09-18 22:22:29 +03:00
Carl Meyer b193fa996a bpo-33499: Add PYTHONPYCACHEPREFIX env var for alt bytecode cache location. (GH-6834)
In some development setups it is inconvenient or impossible to write bytecode
caches to the code tree, but the bytecode caches are still useful. The
PYTHONPYCACHEPREFIX environment variable allows specifying an alternate
location for cached bytecode files, within which a directory tree mirroring the code
tree will be created. This cache tree is then used (for both reading and writing)
instead of the local `__pycache__` subdirectory within each source directory.

Exposed at runtime as sys.pycache_prefix (defaulting to None), and can
be set from the CLI as "-X pycache_prefix=path".

Patch by Carl Meyer.
2018-06-16 14:40:56 +10:00
Zackery Spytz fffeb6f3d6 bpo-30436: Add missing space in importlib.util.find_spec() error message (GH-7385) 2018-06-07 02:02:24 -04:00
Serhiy Storchaka 941ec210aa
bpo-32911: Add the historical note about the magic number. (GH-7273) 2018-05-31 09:11:55 +03:00
Barry Warsaw 0ed66df524
bpo-33537: Add an __all__ to importlib.resources (#6920) 2018-05-17 11:41:53 -04:00
Brett Cannon 3ab9365dca
bpo-33254: do not return an empty list when asking for the contents of a namespace package (GH-6467) 2018-04-30 11:31:45 -07:00
Brett Cannon 9e2be60634
bpo-33169: Remove values of `None` from sys.path_importer_cache when invalidating caches (GH-6402)
An entry of None in sys.path_importer_cache represents a negative/missing finder for a path, so clearing it out makes sense.
2018-04-06 16:10:18 -07:00
Barry Warsaw 30e507dff4
bpo-33151: Handle submodule resources (GH-6268) 2018-03-27 09:59:38 -07:00
Serhiy Storchaka 702f8f3611
bpo-33041: Rework compiling an "async for" loop. (#6142)
* Added new opcode END_ASYNC_FOR.
* Setting global StopAsyncIteration no longer breaks "async for" loops.
* Jumping into an "async for" loop is now disabled.
* Jumping out of an "async for" loop no longer corrupts the stack.
* Simplify the compiler.
2018-03-23 14:34:35 +02:00
Serhiy Storchaka 4e2442505c
bpo-32946: Speed up "from ... import ..." from non-packages. (GH-5873) 2018-03-11 10:52:37 +02:00
Serhiy Storchaka 520b7ae27e
bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. (GH-5006)
Co-authored-by: Mark Shannon <mark@hotpy.org>
Co-authored-by: Antoine Pitrou <antoine@python.org>
2018-02-22 23:33:30 +02:00
Serhiy Storchaka 4af8fd5614
bpo-32838: Fix Python versions in the table of magic numbers. (#5658) 2018-02-22 22:26:23 +02:00
Barry Warsaw bbbcf8693b
bpo-32303 - Consistency fixes for namespace loaders (#5481)
* Make sure ``__spec__.loader`` matches ``__loader__`` for namespace packages.
* Make sure ``__spec__.origin` matches ``__file__`` for namespace packages.

https://bugs.python.org/issue32303
https://bugs.python.org/issue32305
2018-02-02 15:15:58 -05:00
Mark Shannon 332cd5ee4f bpo-32550. Remove the STORE_ANNOTATION bytecode. (GH-5181) 2018-01-29 16:41:04 -08:00
Barry Warsaw 6f6eb35f9b
bpo-32248 - Implement `ResourceReader` and `get_resource_reader()` for zipimport (#5248) 2018-01-24 15:36:21 -05:00
Barry Warsaw 5ec0feeeec
Implement the get_resource_reader() API for file system imports (#5168) 2018-01-15 15:07:11 -08:00
Brett Cannon bca42186b6
bpo-32248: Introduce the concept of Loader.get_resource_reader() (GH-5108) 2018-01-12 15:08:59 -08:00
Barry Warsaw deae6b451f
bpo-32248 - Implement importlib.resources (#4911)
Port importlib_resources to importlib.resources
2017-12-30 15:18:06 -05:00
Brett Cannon 4ac5150e06
bpo-32248: Implement importlib.abc.ResourceReader (GH-4892) 2017-12-15 16:29:35 -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
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
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
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
Serhiy Storchaka 9b0d1d647e bpo-31070: Fix a race condition in importlib _get_module_lock(). (#3033) 2017-08-09 14:29:12 +03:00
Victor Stinner e72b1359f8 bpo-30891: Fix again importlib _find_and_load() (#2665)
Use sys.modules.get() in the "with _ModuleLockManager(name):" block
to protect the dictionary key with the module lock and use an atomic
get to prevent race condition.

Remove also _bootstrap._POPULATE since it was unused
(_bootstrap_external now has its own _POPULATE object), add a new
_SENTINEL object instead.
2017-07-21 13:00:46 +02:00
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
Victor Stinner 4f9a446f3f bpo-30891: Fix importlib _find_and_load() race condition (#2646)
* Rewrite importlib _get_module_lock(): it is now responsible to hold
  the imp lock directly.
* _find_and_load() now holds the module lock to check if name is in
  sys.modules to prevent a race condition
2017-07-10 22:52:32 +02:00
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
Milan Oberkirch 8c3f05e9f0 bpo-30436: Raise ModuleNotFoundError for importlib.util.find_spec() when parent isn't a package (GH-1899)
Previously AttributeError was raised, but that's not very reflective of the fact that the requested module can't be found since the specified parent isn't actually a package.
2017-06-14 14:34:50 -07:00
Garvit Khatri 94987826e8 bpo-29851: Have importlib.reload() raise ImportError if the module's spec is not found (GH-972) 2017-05-24 15:19:50 -07:00
Eric Snow 6b4be195cd bpo-22257: Small changes for PEP 432. (#1728)
PEP 432 specifies a number of large changes to interpreter startup code, including exposing a cleaner C-API. The major changes depend on a number of smaller changes. This patch includes all those smaller changes.
2017-05-22 21:36:03 -07:00
Serhiy Storchaka 55fe1ae970 bpo-30022: Get rid of using EnvironmentError and IOError (except test… (#1051) 2017-04-16 10:46:38 +03:00
Mandeep Bhutani 9f0aa4843f bpo-29862: Fix grammar in importlib.reload() exception (GH-809) 2017-03-24 21:51:21 -07:00
Matthias Bussonnier 1d4601c2c6 bpo-29576: add explicit deprecation for importlib.abc.find_loader() and find_module() (GH-32) 2017-02-15 18:00:32 -08:00
Yury Selivanov f2392133eb Issue #26110: Add LOAD_METHOD/CALL_METHOD opcodes.
Special thanks to INADA Naoki for pushing the patch through
the last mile, Serhiy Storchaka for reviewing the code, and to
Victor Stinner for suggesting the idea (originally implemented
in the PyPy project).
2016-12-13 19:03:51 -05:00
Steve Dower 10beb3cfef Issue #28896: Disable WindowsRegistryFinder by default. 2016-12-12 11:17:59 -08:00
Nick Coghlan 19d246745d Issue #23722: improve __classcell__ compatibility
Handling zero-argument super() in __init_subclass__ and
__set_name__ involved moving __class__ initialisation to
type.__new__. This requires cooperation from custom
metaclasses to ensure that the new __classcell__ entry
is passed along appropriately.

The initial implementation of that change resulted in abruptly
broken zero-argument super() support in metaclasses that didn't
adhere to the new requirements (such as Django's metaclass for
Model definitions).

The updated approach adopted here instead emits a deprecation
warning for those cases, and makes them work the same way they
did in Python 3.5.

This patch also improves the related class machinery documentation
to cover these details and to include more reader-friendly
cross-references and index entries.
2016-12-05 16:47:55 +10:00
Serhiy Storchaka 7344285c19 Issue #28257: Improved error message when pass a non-iterable as
a var-positional argument.  Added opcode BUILD_TUPLE_UNPACK_WITH_CALL.
2016-10-02 10:33:46 +03:00
Nick Coghlan 944368e1cc Issue #23722: Initialize __class__ from type.__new__()
The __class__ cell used by zero-argument super() is now initialized
from type.__new__ rather than __build_class__, so class methods
relying on that will now work correctly when called from metaclass
methods during class creation.

Patch by Martin Teichmann.
2016-09-11 14:45:49 +10:00
Eric Snow 50fd89806f Issue #24320: Drop an old setuptools-induced hack. 2016-09-09 13:30:54 -07:00
Victor Stinner f9b760f48a Rework CALL_FUNCTION* opcodes
Issue #27213: Rework CALL_FUNCTION* opcodes to produce shorter and more
efficient bytecode:

* CALL_FUNCTION now only accepts position arguments
* CALL_FUNCTION_KW accepts position arguments and keyword arguments, but keys
  of keyword arguments are packed into a constant tuple.
* CALL_FUNCTION_EX is the most generic, it expects a tuple and a dict for
  positional and keyword arguments.

CALL_FUNCTION_VAR and CALL_FUNCTION_VAR_KW opcodes have been removed.

2 tests of test_traceback are currently broken: skip test, the issue #28050 was
created to track the issue.

Patch by Demur Rumed, design by Serhiy Storchaka, reviewed by Serhiy Storchaka
and Victor Stinner.
2016-09-09 10:17:08 -07:00