Commit Graph

528 Commits

Author SHA1 Message Date
Serhiy Storchaka 03b0e8374b [3.6] bpo-30814: Fixed a race condition when import a submodule from a package. (GH-2580). (#2598)
(cherry picked from commit b4baacee1a)
2017-07-06 08:38:24 +03:00
Mariatta 8b82236952 bpo-29862: Fix grammar in importlib.reload() exception (GH-809) (GH-811)
(cherry picked from commit 9f0aa4843f)
2017-03-25 03:41:59 -07:00
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
Yury Selivanov f8cb8a16a3 Issue #27985: Implement PEP 526 -- Syntax for Variable Annotations.
Patch by Ivan Levkivskyi.
2016-09-08 20:50:03 -07:00
Eric Snow f3fd06a2e4 Issue #28026: Raise ImportError when exec_module() exists but create_module() is missing. 2016-09-08 11:12:31 -07:00
Brett Cannon 035a100382 Issue #26667: Add path-like object support to importlib.util. 2016-09-07 18:39:18 -07:00
Eric Snow 46f97b85a8 Issue #15767: Use ModuleNotFoundError. 2016-09-07 16:56:15 -07:00
Brett Cannon eaecc692df Issue #27974: Remove importlib._bootstrap._ManageReload.
Class was dead code. Thanks to Xiang Zhang for the patch.
2016-09-06 16:20:46 -07:00
Serhiy Storchaka ea525a2d1a Issue #27078: Added BUILD_STRING opcode. Optimized f-strings evaluation. 2016-09-06 22:07:53 +03:00
Brett Cannon 4106f61c4c Merge for #27083 2016-07-16 10:45:16 -07:00
Brett Cannon 7ca63cb7cc Fix regressions introduced by fixes for issue #27083. 2016-07-16 10:44:13 -07:00
Brett Cannon b3e73b30ff Merge for #27083 2016-07-15 11:55:21 -07:00
Brett Cannon a47a7a5bf8 Issue #27083: Respect the PYTHONCASEOK environment variable under
Windows.

Originally only b'PYTHONCASEOK' was being checked for in os.environ,
but that won't work under Windows where all environment variables are
strings (on OS X they are bytes).

Thanks to Eryk Sun for the bug report.
2016-07-15 11:54:38 -07:00
Brett Cannon 3fef2eef2e Issue #26972: Fix some mistakes in importlib-related docstrings.
Thanks to Oren Milman for the patch.
2016-07-08 11:09:35 -07:00
Brett Cannon 696c35e86b Issue #26186: Remove the restriction that built-in and extension
modules  can't be lazily loaded.

Thanks to Python 3.6 allowing for types.ModuleType to have its
__class__ mutated, the restriction can be lifted by calling
create_module() on the wrapped loader.
2016-06-25 10:58:17 -07:00
Brett Cannon da037616b1 Merge from 3.5 2016-06-25 10:50:24 -07:00
Brett Cannon e92dc9c23d Fix a scoping issue where an UnboundLocalError was triggered if a
lazy-loaded module was already in sys.modules.
2016-06-25 10:47:53 -07:00
Serhiy Storchaka 64204de04c Issue #27095: Simplified MAKE_FUNCTION and removed MAKE_CLOSURE opcodes.
Patch by Demur Rumed.
2016-06-12 17:36:24 +03:00
Serhiy Storchaka 5697c4b641 Comment fixes extracted from patch by Demur Rumed. 2016-06-12 17:02:10 +03:00
Serhiy Storchaka cf2ad55511 Issue #27286: Fixed compiling BUILD_MAP_UNPACK_WITH_CALL opcode. Calling
function with generalized unpacking (PEP 448) and conflicting keyword names
could cause undefined behavior.
2016-06-12 09:35:13 +03:00
Serhiy Storchaka 3c317e76a2 Issue #27286: Fixed compiling BUILD_MAP_UNPACK_WITH_CALL opcode. Calling
function with generalized unpacking (PEP 448) and conflicting keyword names
could cause undefined behavior.
2016-06-12 09:22:01 +03:00
Serhiy Storchaka 6a7506a77f Issue #27140: Added BUILD_CONST_KEY_MAP opcode. 2016-06-12 00:39:41 +03:00
Eric Snow 0472217d43 Issue #27138: Fix the doc comment for FileFinder.find_spec(). 2016-05-27 12:56:41 -06:00
Eric Snow fc36e66af4 Issue #27138: Fix the doc comment for FileFinder.find_spec(). 2016-05-27 12:36:28 -06:00
Martin Panter 3e04d5b306 Issue #27076: Merge spelling from 3.5 2016-05-26 06:03:19 +00:00
Martin Panter 46f50726a0 Issue #27076: Doc, comment and tests spelling fixes
Most fixes to Doc/ and Lib/ directories by Ville Skyttä.
2016-05-26 05:35:26 +00:00
Serhiy Storchaka b0f80b0312 Issue #26647: Python interpreter now uses 16-bit wordcode instead of bytecode.
Patch by Demur Rumed.
2016-05-24 09:15:14 +03:00
Steve Dower 8d0abb9eb6 Issue #26073: Updates magic number comment in _bootstrap_external.py and changes numbers in launcher.py to decimal to match official table. 2016-05-16 09:35:18 -07:00
Steve Dower 7ae61af827 Issue #26073: Updates magic number comment in _bootstrap_external.py and changes numbers in launcher.py to decimal to match official table. 2016-05-16 09:34:20 -07:00
Victor Stinner 4f17426437 Fix bug in __import__ during Python shutdown
Issue #26637: The importlib module now emits an ImportError rather than a
TypeError if __import__() is tried during the Python shutdown process but
sys.path is already cleared (set to None).
2016-03-25 00:40:59 +01:00
Victor Stinner 82f04e2dfd regrtest: Fix module.__path__
Issue #26538: libregrtest: Fix setup_tests() to keep module.__path__ type
(_NamespacePath), don't convert to a list.

Add _NamespacePath.__setitem__() method to importlib._bootstrap_external.
2016-03-15 23:08:44 +01:00
Brett Cannon e5f4d3c246 Merge for issue #26186 2016-02-20 18:37:04 -08:00
Brett Cannon 558823a0cf Issue #26186: Remove an invalid type check in
importlib.util.LazyLoader.

The class was checking its argument as to whether its implementation
of create_module() came directly from importlib.abc.Loader. The
problem is that the classes coming from imoprtlib.machinery do not
directly inherit from the ABC as they come from _frozen_importlib.
Because the documentation has always said that create_module() was
ignored, the check has simply been removed.
2016-02-20 18:35:41 -08:00
Brett Cannon 0911c0d271 Merge for issue #26367 2016-02-20 12:59:36 -08:00
Brett Cannon 4f38cb41fe Issue #26367: Have importlib.__init__() raise RuntimeError when
'level' is specified but no __package__.

This brings the function inline with builtins.__import__(). Thanks to
Manuel Jacob for the patch.
2016-02-20 12:52:06 -08:00
Serhiy Storchaka 885bdc4946 Issue #25985: sys.version_info is now used instead of sys.version
to format short Python version.
2016-02-11 13:10:36 +02:00
Brett Cannon 849113af6b Issue #25791: Warn when __package__ != __spec__.parent.
In a previous change, __spec__.parent was prioritized over
__package__. That is a backwards-compatibility break, but we do
eventually want __spec__ to be the ground truth for module details. So
this change reverts the change in semantics and instead raises an
ImportWarning when __package__ != __spec__.parent to give people time
to adjust to using spec objects.
2016-01-22 15:25:50 -08:00
Victor Stinner f3914eb16d co_lnotab supports negative line number delta
Issue #26107: The format of the co_lnotab attribute of code objects changes to
support negative line number delta.

Changes:

* assemble_lnotab(): if line number delta is less than -128 or greater than
  127, emit multiple (offset_delta, lineno_delta) in co_lnotab
* update functions decoding co_lnotab to use signed 8-bit integers

  - dis.findlinestarts()
  - PyCode_Addr2Line()
  - _PyCode_CheckLineNumber()
  - frame_setlineno()

* update lnotab_notes.txt
* increase importlib MAGIC_NUMBER to 3361
* document the change in What's New in Python 3.6
* cleanup also PyCode_Optimize() to use better variable names
2016-01-20 12:16:21 +01:00
Brett Cannon 63b8505281 Issue #25791: Raise an ImportWarning when __spec__ or __package__ are
not defined for a relative import.

This is the start of work to try and clean up import semantics to rely
more on a module's spec than on the myriad attributes that get set on
a module. Thanks to Rose Ames for the patch.
2016-01-15 13:33:03 -08:00
Brett Cannon eae3079041 Issue #25802: Deprecate load_module() on importlib.machinery.SourceFileLoader and SourcelessFileLoader.
They were the only remaining implementations of load_module() not
documented as deprecated.
2015-12-28 17:55:27 -08:00
Brett Cannon 65ca88e4e0 Issue #25771: Tweak ValueError message when package isn't specified
for importlib.util.resolve_name() but is needed.

Thanks to Martin Panter for the bug report.
2015-12-04 15:19:42 -08:00
Eric V. Smith a78c7954d5 Issue 25483: Add an opcode to make f-string formatting more robust. 2015-11-03 12:45:05 -05:00
Serhiy Storchaka f22d8080ae Issue #25280: Import trace messages emitted in verbose (-v) mode are no
longer formatted twice.
2015-10-01 11:55:52 +03:00
Serhiy Storchaka 0b40aab6f0 Issue #25280: Import trace messages emitted in verbose (-v) mode are no
longer formatted twice.
2015-10-01 11:40:22 +03:00
Serhiy Storchaka f731bc09fa Issue #25280: Import trace messages emitted in verbose (-v) mode are no
longer formatted twice.
2015-10-01 11:08:50 +03:00